Dr. ZHANG, Xuming

B.Eng., University of Science & Technology of China (USTC), CHINA

M.Eng., Shanghai Institute of Optics &Fine Mechanics, Chinese Academy of Sciences, CHINA

M.Eng., National University of Singapore (NUS), SINGAPORE

Ph.D.,  Nanyang Technological University, SINGAPORE


Associate Professor

Department of Applied Physics, Hong Kong Polytechnic University

Tel. :  (852) 3400 3258
Fax.:  (852) 2333 7629
Email: apzhang@polyu.edu.hk
My Web Page: http://ap.polyu.edu.hk/apzhang


Short CV (2 pages): download       Full CV (23 pages): download

Video demo: Trap two droplets

Teaching Duties

     AP20015 Physics in Radiological Science (Sem1)

     AP50001 Radiation Physics (Sem1)

     AP30010 Radiation Physics (Sem2)

     AP40004 Final-year projects (coordinator, full year)  

Research Interests

     Optofluidic devices and systems

     Photocatalysis, artificial photosynthesis

    Water purification, microfluidic reactors


     Micro-optics and nano-photonics


Recent Research Results

Plasmonic enhancement using Au nanohole array

Plasmon-induced hot carriers have recently attracted considerable interest, but the energy efficiency in visible light is often low due to the short lifetime of hot carriers and the limited optical absorption of plasmonic architectures. To increase the generation of hot carriers, we propose to exert multiple plasmonic resonant modes and their strong coupling using a metal–dielectric–metal (MDM) nanocavity that comprises an Au nanohole array (AuNHA), a TiO2 thin film and an Au reflector. Unlike common MDM structures with only the Fabry-Pérot mode in the dielectric layer, AuNHA as the top layer is special because it excites the localized surface plasmon resonance (LSPR) mode in the Au nanoholes and launches the gap surface plasmon polariton (GSPP) mode in the Au reflector surface. The spatial field overlapping of the three resonance modes enables strong mode coupling by optimizing the TiO2 thickness, which leads to notably enhanced average IPCE (1.5%) and broadband photocurrent (170 μcm2). This MDM structure would be useful for photochemistry and photovoltaics using sunlight.

Nanoscale 13(5), 2731-3310, 2021. (Inside front cover)






Photocatalytic ozonation for sea water decontamination

Polluted seawater is difficult to treat due to salt ions. Here photocatalytic ozonation is found highly efficient since the dissolved O3 molecules rapidly scavenge photoexcited electrons, resulting in the synergistic effect of photocatalysis and ozonation.

Journal of Water Processing Engineering 37, 101501, 2020.







Aberration-free aspherical in-plane tunable liquid lenses by regulating local curvatures

Aberration is a long-standing problem of focal lenses. This paper reports an in-plane optofluidic lens that compensates the spherical aberration during the tuning of focal length. Experiments using a silicone oil obtain the tuning of focal length over 500–1400 mm and a longitudinal spherical aberration (LSA) of 3.5 mm, only 1/24 of the LSA (85 mm) of the spherical lens. Fine adjustment of applied voltages allows the elimination of LSA to obtain the aberration-free tunable lenses. It is the first time that local curvature regulation is used to compensate for the aberration within one in-plane liquid lens.

Lab on a Chip 20(5), 31 Jan 2020.

Video demo of aberration control.



Microfluidic immobilized enzyme reactors for continuous biocatalysis (long review, front cover)

c9re00217k_front_smallThe use of microfluidic immobilized enzyme reactors (μ-IMERs) offers several advantages over traditional technologies in performing biocatalytic reactions, such as low energy consumption, rapid heat exchange, fast mass transfer, high efficiency and superior repeatability. In this review, the strategies of employing μ-IMERs for continuous biocatalysis will be investigated by a top-down approach.

Reaction Chemistry & Engineering 5(1), 01 Jan 2020 (Front cover)




Microfluidic reactors for continuous artificial synthesis of glucose precursor

Featured IMG_1副本1Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) is a difficult enzyme to work with. Here, the authors covalently immobilized it in a microfluidic reactor to enhance its storage/thermal stabilities and reusability, which enabled the continuous artificial synthesis of glucose precursor.

Nature Communications 10(4049), 06 September 2019.




Tunable lenses with dual air/liquid interfaces

Fig.4 In-plane tunable liquid lenses are formed by using two air/liquid interfaces, whose curvatures are actuated by dielectrophoresis force and tuned symmetrically or asymmetrically for biconcave to biconvex.

Lab on a Chip 18(24), 3849 – 3854, 2018.

Video demo of symmetric tuning.

Video demo of asymmetric tuning.



Plasmonic black absorbers

2017 AdOM_Plasmonic absorber_Back Cover         

TiO2-covered rough Au film is used as a plasmonic black absorber to drastically enhance the photocurrent in sunlight.

Advanced Optical Materials 5(1) 1600399, 2017 (back cover)






Laser shapes the light beam in liquid

Inside back coverLaser irradiation creates a thermal gradient and thus a graded lens in the liquid medium, which enables to converge or diverge the light beam in the liquid in an agile, no contact, remote manner.

Lab on a Chip 16(1) 104 – 111, 2016 (inside back cover)

Video demo of tunable thermal lens.



Digital ultrafine optical comb

上海初稿6a1 copy

Ultrafine optical frequency comb of with 1.46-MHz spacing is generated by digital modulation. It enhances the resolution and speed of  spectral measurement by > 100 times.

Light: Science& Applications 4, e300, 2015.







Clam inspires the use of adhesive tape in biochips

Clams capture phytoplankton particles in water using mucus (i.e., sticky fluid). This inspires to use common adhesive tape as the substrate of biochip to immobilize microparticles.

Sensors and Actuators B Chemical 222, 106 – 111, 2015.






Book Chapters

1.          Ning Wang and Xuming Zhang, “Chapter 16. Microfluidic Photocatalysis”, in Optical MEMS, nanophotonics, and their applications, ed. Guangya Zhou and Chengkuo Lee, Taylor and Francis, 2017.

2.          X. M. Zhang, Photonic MEMS devices – design, fabrication and control, Ch. 5-8, ed. A. Q. Liu, Taylor-Francis, 2008.

Journal Publications (selected)


1.          Yat Lam Wong, Huaping Jia, Aoqun Jian, Dangyuan Lei*, Abdel I. El Abed, and Xuming Zhang*, Enhancing plasmonic hot-carrier generation by strong coupling of multiple resonant modes, Nanoscale, vol. 13, no. 5, pp. 2731-3310, 7 February 2021. (Inside front cover) DOI: 10.1039/D0NR07643K


2.          Aoqun Jian, Feng Liu, Gang Bai, Bo Zhang, Yixia Zhang, Qianwu Zhang, Xiaoming Xue, Shengbo Sang*, Xuming Zhang*, Parity-time symmetry based on resonant optical tunneling effect for biosensing, Optics Communications, vol. 475, paper no. 125815, 15 November 2020. DOI: 10.1016/j.optcom.2020.125815

3.          Huan Lin, Zhiyun Ma, Jiwu Zhao, Yang Liu, Jinquan Chen, Junhui Wang, Kaifeng Wu, Huaping Jia, Xuming Zhang, Xinhua Cao, Xuxu Wang, Xianzhi Fu, Jinlin Long*, Electric-field-mediated electron tunneling of supramolecular naphthalimide nanostructures for biomimetic H2 production, Angewandte Chemie (International Ed. in English), vol. 59, pp. 2 – 11, 07 October 2020. DOI: 10.1002/ange.202009267

4.          Chi Chung Tsoi, Xiaowen Huang, Polly H. M. Leung, Ning Wang, Weixing Yu, Yanwei Jia, Zhaohui Li, Xuming Zhang*, Photocatalytic ozonation for sea water decontamination, Journal of Water Processing Engineering, vol. 37, paper no. 101501, October 2020. DOI: 10.1016/j.jwpe.2020.101501

5.          Aoqun Jian, Mingyuan Jiaoa, Yixia Zhangc, Qianwu Zhang, Xiaoming Xue, Shengbo Sang, Xuming Zhang*, Enhancement of the volume refractive index sensing by ROTE and its application on cancer and normal cells discrimination, Sensors and Actuators A Physical, vol. 313, 112177, 1 October 2020. DOI: 10.1016/j.sna.2020.112177

6.          Qingming Chen, Yujiao Zhu, Di Wu, Tenghao Li, Zhaohui Li, Chao Lu, Kin Seng Chiang, and Xuming Zhang*, Electrically generated optical waveguide in a lithium-niobate thin film, Optics Express, vol. 28, no. 20, pp. 29895 – 29903, 28 September 2020. DOI: 10.1364/OE.405029

7.          Cong Xiong, Jiangtao Zhou, Changrui Liao*, Meng Zhu, Ying Wang, Shen Liu, Chi Li, Yunfang Zhang, Yuanyuan Zhao, Zongsong Gan, Leonardo Venturelli, Sandor Kasas, Xuming Zhang, Giovanni Dietler*, Yiping Wang, Fiber-tip polymer microcantilever for fast and highly sensitive hydrogen measurement, ACS Applied Materials & Interfaces, vol. 12, no. 29, pp. 33163-33172, 22 Jul 2020. DOI: 10.1021/acsami.0c06179

8.          Tarik Bourouina and Xuming Zhang*, Editorial for the Special Issue on IMCO 2019, Micromachines, vol. 11, no. 7, pp. 684, 15 July 2020. DOI: 10.3390/mi11070684

9.          Yatao Yang, Sankhyabrata Bandyopadhyay, Liyang Shao*, Jiahao Jiang, Zeng Peng, Shuaiqi Liu, Jie Hu, Perry Ping Shum, Jiandong Hu, and Xuming Zhang, Anomalous sensitivity enhancement of D-shaped fiber-based sandwiched structure optofluidic sensor, IEEE Access, vol. 8, pp. 105207 – 105216, 16 June 2020. DOI: 10.1109/ACCESS.2020.2999733

10.       Qingming Chen, Xiliang Tong, Yujiao Zhu, Chi Chung Tsoi, Yanwei Jia, Zhaohui Li and Xuming Zhang*, Aberration-free aspherical in-plane tunable liquid lenses by regulating local curvatures, Lab on a Chip, vol. 20, no. 5, pp. 995 – 1001, 31 Jan 2020. DOI: 10.1039/C9LC01217F

11.       Yujiao Zhu, Qingming Chen, Liyang Shao, Yanwei Jia and Xuming Zhang*, Microfluidic immobilized enzyme reactors for continuous biocatalysis, Reaction Chemistry & Engineering, vol. 5, no. 1, pp. 9 – 32, 01 Jan 2020 (Front cover). DOI: 10.1039/C9RE00217K.


12.       Aoqun Jian, Meiling Wang, Leiyang Wang, Bo Zhang, Shengbo Sang* and Xuming Zhang*, One-pot synthesis of Cu2O/C@H-TiO2 nanocomposites with enhanced visible-light photocatalytic activity, RSC Advances, vol. 9, no. 71, paper no. 41540, 16 Dec 2019. DOI: 10.1039/c9ra07767g

13.       Huaping Jia, Yat Lam Wong, Aoqun Jian*, Chi Chung Tsoi, Meiling Wang, Wanghao Li, Wendong Zhang, Shengbo Sang and Xuming Zhang*, Microfluidic reactors for plasmonic photocatalysis using gold nanoparticles, Micromachines, vol. 10, no. 12, paper no. 869, 11 December 2019. Doi:10.3390/mi10120869.

14.       Jie Hu, Liyang Shao*, Guoqiang Gu, Xuming Zhang, Yanjun Liu, Xuefeng Song, Zhangqi Song, Jiansong Feng, Ryszard Buczyński, Mateusz Śmietana, Taihong Wang, and Tingting Lang*, Dual Mach-Zehnder interferometer based on side-hole fiber for high-sensitivity refractive index sensing, IEEE Photonics Journal, IEEE Photonics Journal, vol. 11, no. 6, paper no. 7105513, December 2019. DOI: 10.1109/JPHOT.2019.2948087.

15.       Aoqun Jian, Kai Feng, Huaping Jia, Qianwu Zhang, Shengbo Sang*, Xuming Zhang*, Quantitative investigation of plasmonic hot-electron injection by KPFM, Applied Surface Science, vol. 492, pp. 644-650, 30 October 2019. DOI: 10.1016/j.apsusc.2019.06.109.

16.       Jintao Ming, Ai Liu, Jiwu Zhao, Pu Zhang, Haowei Huang, Huan Lin, Ziting Xu, Xuming Zhang, Xuxu Wang, Johan Hofkens, Maarten B. J. Roeffaers,* and Jinlin Long, Hot p-electron tunneling of metal–insulator–cof nanostructures for efficient hydrogen production, Angewandte Chemie (International Ed. in English), vol. 58, no. 50, pp. 18290 – 18294, 23 October 2019. DOI: 10.1002/anie.201912344

17.       Yujiao Zhu, Ziyu Huang, Qingming Chen, Qian Wu, Xiaowen Huang, Pui-Kin So, Liyang Shao, Zhongping Yao, Yanwei Jia, Zhaohui Li, Weixing Yu, Yi Yang, Aoqun Jian, Shengbo Sang, Wendong Zhang & Xuming Zhang*, Continuous artificial synthesis of glucose precursor using enzyme-immobilized microfluidic reactors, Nature Communications, vol. 10, no. 4049, 06 September 2019. DOI: 10.1038/s41467-019-12089-6.

18.       Aoqun Jian, Lu Zou, Gang Bai, Qianqian Duan, Yixia Zhang, Qianwu Zhang, Shengbo Sang*, and Xuming Zhang*, Highly sensitive cell concentration detection by resonant optical tunneling effect, Journal of Lightwave Technology, 27 March 2019. DOI: 10.1109/JLT.2019.2907786. 

19.       Rui Zhang, Qingming Chen, Kai Liu, Zefeng Chen, Kaidi Li, Xuming Zhang, Jianbin Xu, Emma Pickwell-MacPherson, Terahertz microfluidic metamaterial biosensor for sensitive detection of small volume liquid samples, IEEE Transactions on Terahertz Science and Technology, vol. 9, no. 2, March 2019. DOI: 10.1109/TTHZ.2019.2898390


20.       Qingming Chen, Tenghao Li, Zhaohui Li, Chao Lu* and Xuming Zhang*, Dielectrophoresis-actuated liquid lenses with dual air/liquid interfaces tuned from biconcave to biconvex, Lab on a Chip, vol. 18, no. 24, pp. 3849 – 3854, 21 December 2018. DOI: 10.1039/C8LC00999F

21.       Lu Song, Yuanhua Feng*, Xiaojie Guo, Yuecheng Shen, Daixuan Wu, Zhenhua Wu, Congran Zhou, Linyan Zhu, Shecheng Gao, Weiping Liu, Xuming Zhang*, and Zhaohui Li*, Ultrafast polarization bio-imaging based on coherent detection and time-stretch techniques, Biomedical Optics Express, vol. 9, no. 12, pp. 6556 – 6568, 1 Dec 2018. DOI: 10.1364/BOE.9.006556

22.       Tenghao Li, Qingming Chen, And Xuming Zhang*, Electrically-controlled polarization rotator using nematic liquid crystal, Optics Express, vol. 26, no. 24, pp. 32317 – 32323, 26 Nov 2018.  DOI: 10.1364/OE.26.032317

23.       Kwun Hei Willis Ho, Aixue Shang, Fenghua Shi, Tsz Wing Lo, Pui Hong Yeung, Yat Sing Yu, Xuming Zhang, Kwok-yin Wong, and Dang Yuan Lei*, Plasmonic Au/TiO2-dumbbell-on-film nanocavities for high-efficiency hot-carrier generation and extraction, Advanced Functional Materials, vol. 28, paper no. 1800383, 10 July 2018. DOI: 10.1002/adfm.201800383

24.       Tenghao Li, Qingming Chen, Xuming Zhang*, Optofluidic planar optical cross-connect using nematic liquid-crystal waveguides, IEEE Photonics Journal, vol. 10, no. 4, pp. 1-17, Aug 2018. DOI: 10.1109/JPHOT.2018.2853759.

25.       Aoqun Jian, Gang Bai, Yanxia Cui, Chongguang Wei, Xin Liu, Qianwu Zhang, Shengbo Sang*, Xuming Zhang*, Optical and quantum models of resonant optical tunneling effect, Optics Communications, vol. 428, pp. 191–199, 2018. DOI: 2018.0 10.1016/j.optcom.2018.07.047

26.       Shenghuang Lin, Yang Liu, Zhixin Hu, Gongxun Bai, Yanyong Li, Huiyu Yuan, Yunzhou Xue, Lukas Rogée, Jianhua Hao, Xuming Zhang*, Shu Ping Lau*, Enhancement of photo-electrochemical reactions in MAPbI3/Au, Materials Today Energy, vol. 9, pp. 303–310, September 2018. doi:10.1016/j.mtener.2018.06.006

27.       Xuming Zhang, Editorial for the special issue on advances in optofluidics, Micromachines, vol. 9, no. 6, pp. 302 – 303, 15 June 2018. doi:10.3390/mi9060302

28.       Qingzhao Hu, Yan Liu, Longtao Ma, Xuming Zhang, Haitao Huang*, PPy enhanced Fe, W Co-doped Co3O4 free-standing electrode for highly-efficient oxygen evolution reaction, Journal of Applied Electrochemistry, 22 May 2018. doi: 10.1007/s10800-018-1211-5

29.       Qingming Chen, Tenghao Li, Yujiao Zhu, Weixing Yu, and Xuming Zhang*, Dielectrophoresis-actuated in-plane optofluidic lens with tunability of focal length from negative to positive, Optics Express, vol. 26, no. 6, pp. 6532 – 6541, 5 Mar 2018. DOI: 10.1364/OE.26.006532

30.      Qingming Chen, Tenghao Li, Zhaohui Li, Jinlin Long and Xuming Zhang*, Optofluidic tunable lenses for in-plane light manipulation, Micromachines, vol. 9, no. 3, paper no. 97, 26 Feb 2018. Download

31.      Tenghao Li, Qingming Chen, Weixing Yu, And Xuming Zhang*, Planar polarization-routing optical cross-connects using nematic liquid crystal waveguides, Optics Express, vol. 26, no. 1, pp. 402–418, 8 Jan 2018. Download

32.      Xiaowen Huang, Jianchun Wang, Tenghao Li, Jianmei Wang, Min Xu, Weixing Yu, Abdel El Abed, and Xuming Zhang*, Review on optofluidic microreactors for artificial photosynthesis, Beilstein Journal of Nanotechnology, vol. 9, pp. 30 - 41, 04 January 2018. Download


33.      Shenghuang Lin, Yang Liu, Zhixin Hu, Wei Lu, Chun Hin Mak, Longhui Zeng, Jiong Zhao, Yanyong Li, Feng Yan, Yuen Hong Tsang, Xuming Zhang, Shu Ping Lau, Tunable active edge sites in PtSe2 films towards hydrogen evolution reaction, Nano Energy, vol. 42, pp. 26-33, December 2017. Download

34.      Xiaoqiang Zhu, Li. Liang, Yunfeng Zuo, Xuming Zhang and Yi Yang*, Tunable visible cloaking using the liquid diffusion, Laser & Photonics Reviews, vol. 11, no. 6, November 2017. Download

35.      Sainan Ma, Chun Pang Chiu, Yujiao Zhu, Chun Yin Tang, Hui Long, Wayesh Qarony, Xinhua Zhao, Xuming Zhang, Wai Hung Lo, Yuen Hong Tsang*, Recycled waste black polyurethane sponges for solar vapor generation and distillation, Applied Energy, vol. 206, pp. 63-69, 15 November 2017. Download

36.      Ning Wang*, Furui Tan, Chi Chung Tsoi and Xuming Zhang*, Photoelectrocatalytic microreactor for seawater decontamination with negligible chlorine generation, Microsystem Technologies, vol. 23, no. 10, pp. 4495-4500, Oct 2017. Download

37.      Hai L. Liu, Xiao Q. Zhu, Li Liang, Xuming Zhang, and Yi Yang, Tunable transformation optical waveguide bends in liquid, Optica, vol. 4, no. 8, pp. 839-846, 25 July 2017. Download

38.      Sainan Ma, Longlui Zeng, Lili Tao, Chun Yin Tang, Huiyu Yuan, Hui Long, Ping Kwong Cheng, Yang Chai, Chuan sheng Chen, Kin Hung Fung, Xuming Zhang, Shu Ping Lau and Yuen Hong Tsang*, Enhanced photocatalytic activity of WS2 film by laser drilling to produce porous WS2/WO3 heterostructure, Scientific Report, vol.  7, paper no. 3125, 9 June 2017. doi: 10.1038/s41598-017-03254-2. Download

39.      Xiaowen Huang, Huimin Hao, Yang Liu, Yujiao Zhu and Xuming Zhang*, Rapid screening of graphitic carbon nitrides for photocatalytic cofactor regeneration using a drop reactor, Micromachines, vol. 8, no. 6, paper 175, 2 June 2017.  doi:10.3390/mi8060175. Download

40.      Aoqun Jian, Chongguang Wei, Lifang Guo, Jie Hu, Jun Tang, Jun Liu, Xuming Zhang*, and Shengbo Sang*, Theoretical analysis of an optical accelerometer based on resonant optical tunneling effect, Sensors, vol. 17, no. 2, paper no. 389, 17 Feb 2017. Download

41.      Furui Tan, Ning Wang, Dang Yuan Lei, Weixing Yu and Xuming Zhang*, Plasmonic black absorbers for enhanced photocurrent of visible-light photocatalysis, Advanced Optical Materials, vol. 5, no. 1, paper 1600399, 19 January 2017. (Back cover) DOI: 10.1002/adom.201600399. Download


42.      Ning Wang*, Furui Tan, Chi Chung Tsoi and Xuming Zhang*, Photoelectrocatalytic microreactor for seawater decontamination with negligible chlorine generation, Microsystem Technologies, vol. 1-6, 21 November 2016. Download

43.      Wei Wu, Xiaoqiang Zhu, Yunfeng Zuo, Li Liang, Shunping Zhang, Xuming Zhang, and Yi Yang*, Precise sorting of gold nanoparticles in a flowing system, ACS Photonics, vol. 3, no. 12, pp. 2497–2504, 7 November 2016. DOI: 10.1021/acsphotonics.6b00737. Download

44.      You-Ling Chen, Wei-Liang Jin, Yun-Feng Xiao, and Xuming Zhang*, Charge measurement of a single dielectric nanoparticle with a high-Q optical microresonator, Physical Review Applied, vol. 6, paper no. 044021, 28 October 2016. DOI: 10.1103/PhysRevApplied.6.044021. Download

45.      Furui Tan, Tenghao Li, Ning Wang, Sin Ki Lai, Chi Chung Tsoi, Weixing Yu, Xuming Zhang*, Rough gold films as broadband absorbers for plasmonic enhancement of TiO2 photocurrent over 400 – 800 nm, Scientific Reports, vol. 6, paper no. 33049, 9 Sep 2016. DOI: 10.1038/srep33049. Download

46.      Xiaowen Huang, Jian Liu, Qingjing Yang, Yang Liu, Yujiao Zhu, Tenghao Li, Yuen Hong Tsang, and Xuming Zhang*, Microfluidic chip-based one-step fabrication of artificial photosystem I for photocatalytic cofactor regeneration, RSC Advances, vol. 6, no. 104, pp. 101974 – 101980, 11 Oct 2016. DOI: 10.1039/C6RA21390A. Download

47.      Ning Wang, Furui Tan, Yu Zhao, Chi Chung Tsoi, Xudong Fan, Weixing Yu & Xuming Zhang*, Optofluidic UV-Vis spectrophotometer for online monitoring of photocatalytic reactions, Scientific Reports, vol. 6, paper no. 28928, 29 Jun 2016. DOI:10.1038/srep28928. Download

48.      Yong Yuan, Tuan Guo*, Xuhui Qiu, Jiahuan Tang, Yunyun Huang, Li Zhuang, Shungui Zhou, Zhaohui Li, Bai-Ou Guan, Xuming Zhang, and Jacques Albert, Electrochemical surface plasmon resonance fiber-optic sensor: in situ detection of electroactive biofilms, Analytical Chemistry, vol. 88, no. 15, pp. 7609–7616. 23 May 2016. Download

49.      Qingming Chen, Aoqun Jian, Zhaohui Li*, and Xuming Zhang*, Optofluidic tunable lenses using laser-induced thermal gradient, Lab on a Chip, vol. 16, no. 1, pp. 104 – 111, 07 Jan 2016. (Inside back cover). DOI: 10.1039/C5LC01163A. Download 

50.      Wuxia Liao, Ning Wang, Taisheng Wang, Jia Xu, Xudong Han, Zhenyu Liu, Xuming Zhang*, and Weixing Yu*, Biomimetic microchannels of planar reactors for optimized photocatalytic efficiency of water purification, Biomicrofluidics, vol. 10, paper no. 014123, Jan 2016. Download. (Highlighted in Facebook, 1 March 2016. https://www.facebook.com/Biomicrofluidics/posts/10153504726343736.

51.      Xiaowen Huang, Yujiao Zhu, Xuming Zhang*, Zhiyong Bao, Dang Yuan Lei, Weixing Yu, Jiyan Dai, Yu Wang, Clam-inspired nanoparticle immobilization method using adhesive tape as microchip substrate, Sensors and Actuators B Chemical, vol. 222, pp. 106 – 111, Jan 2016. Download  (http://dx.doi.org/10.1016/j.snb.2015.08.069, highlighted by Advances in Engineering, on 29 April 2016, https://advanceseng.com/applied-physics/clam-inspired-nanoparticle-immobilization-method-using-adhesive-tape-microchip-substrate/).


52.      Tenghao Li, Qingming Chen, Yunfeng Xiao and Xuming Zhang*, Variable optical delay line using discrete harmonic oscillation in waveguide lattices, Journal of Lightwave Technology, vol. 33, no. 24, pp. 5095 – 5102, 15 Dec 2015. DOI: 10.1109/JLT.2015.2480542.

53.      Xiaowen Huang, Yujiao Zhu, Xuming Zhang*, Zhiyong Bao, Dang Yuan Lei, Weixing Yu, Jiyan Dai, Yu Wang, Clam-inspired nanoparticle immobilization method using adhesive tape as microchip substrate, Sensors and Actuators B Chemical, vol. 222, pp. 106 – 111, 18 August 2015. http://dx.doi.org/10.1016/j.snb.2015.08.069

54.      Y. Bao, X. W. Yi, Z. H. Li*, Q. M. Chen, J. P. Li, X. D. Fan and X. M. Zhang*, A digitally generated ultrafine optical frequency comb for spectral measurements with 0.01-pm resolution and 0.7-μs response time, Light: Science& Applications, vol. 4, paper no. e300, 19 June 2015.

55.      F. R. Wang, G. Q. Zhang, Z. Zhao, H. Q. Tan, W. X. Yu, X. M. Zhang and Z. C. Sun, TiO2 nanosheet array thin film for self-cleaning coating, RSC Advances, vol. 5, no. 13, pp. 9861 – 9864, 06 Jan 2015.


56.      N. Wang, F. R. Tan, L. Wan, M. C. Wu and X. M. Zhang*, Microfluidic reactors for visible-light photocatalytic water purification assisted with thermolysis, Biomicrofluidics, vol. 8, no. 5, pp. 054122, 24 October 2014.

57.      S. Y. Cao, C. S. Chen*, T. G. Liu, Y. H. Tsang*, X. M. Zhang, W. W. Yu, and W. W. Chen, Synthesis of reduced graphene oxide/a-Bi2Mo3O12@ b-Bi2O3 heterojunctions by organic electrolytes assisted UV-excited method, Chemical Engineering Journal, vol. 257, pp. 309–316, 2014.

58.      S. Y. Cao, W. X. Yu, T. S. Wang, H. H. Shen, X. D. Han, W. B. Xu, and X. M. Zhang, Meta-microwindmill structure with multiple absorption peaks for the detection of ketamine and amphetamine type stimulants in terahertz domain, Optical Materials Express, vol. 4, no. 9, pp. 1876 – 1884, 1 September 2014.

59.      C. Y. Tang, X. M. Zhang, Y. Chai, L. Hui, L. L. Tao, and Y. H. Tsang*, Controllable parabolic lensed liquid-core optical fiber by using electrostatic force, Optics Express, vol. 22, no. 17, pp. 20948 – 20953, 25 August 2014.

60.      A. Q. Jian, L. L. Deng, S. B. Sang, Q. Q. Duan, X. M. Zhang, W. D. Zhang, Surface plasmon resonance sensor based on an angled optical fiber, IEEE Sensors Journal, vol. 14, no. 9, pp. 3229 – 3235, September 2014.

61.      C. Y. Tang, G. X. Bai, K. L. Jim, X. M. Zhang, K. H. Fung, Y. Chai, Y. H. Tsang, J. Q. Yao, and D. G. Xu, Lensed water-core teflon-amorphous fluoroplastics optical fiber, Journal of Lightwave Technology, vol. 32, no. 8, pp.1538 – 1542, 15 April 2014.

62.      N. Wang, X. M. Zhang*, Y. Wang, W. X. Yu and Helen L. W. Chan, Microfluidic reactors for photocatalytic water purification, Lab on a Chip, vol. 14, no. 6, pp. 1074 – 1082, 21 March 2014.

63.      S. Y. Cao, W. X. Yu, L. T. Zhang, C. Wang, X. M. Zhang, and Y. Q. Fu, Broadband efficient light absorbing in the visible regime by a metananoring array, Annalen der Physik, vol. 526, no. 1–2, pp. 112–117, January 2014.


64.      A. Q. Jian, and X. M. Zhang, Resonant optical tunneling effect: Recent progress in modeling and applications, IEEE Journal of Selected Topics in Quantum Electronics (invited review), vol. 19, no. 3, paper no. 9000310, May/June 2013.

65.      X. M. Zhang, Y. L. Chen, R-S Liu and D. P. Tsai, Plasmonic Photocatalysis, Reports on Progress in Physics, vol. 76, no. 4, paper no. 046401, April 2013.

66.      G. X. Bai, Y. H. Tsang, K. L. Jim, and X. M. Zhang, UV-curable liquid-core fiber lenses with controllable focal length, Optics Express, vol. 21, no. 5, pp. 5505–5510, 27 February 2013.


67.      C. Pang, M. Yu, X. M. Zhang, A.K. Gupta, and K.M. Bryden, Multifunctional optical MEMS sensor platform with heterogeneous fiber optic Fabry–Pérot sensors for wireless sensor networks, Sensors and Actuators A: Physical, vol. 188, pp. 471–480, Dec 2012.

68.      A. Q. Jian, K. Zhang, Y. Wang, S. P. Lau, Y. H. Tsang, X. M. Zhang, Microfluidic flow direction control using continuous-wave laser, Sensors and Actuators A: Physical, vol. 188, no. 1, pp. 329–334, Dec 2012. (Acknowledged projects: A-PD1S, G-YH81, B-Q26F (i.e., 5327/11E))

69.      Z. F. Chen, Z. H. Yong, C. W. Leung, X. M. Zhang, Y. H.  Chen, H. L. W. Chan, Y. Wang, Time-variant 1D photonic crystals using flowing microdroplets, Optics Express, vol. 20, no. 22, paper no. 24330, 22 Oct 2012.

70.      N. Wang, M. Feng, Z. Q. Feng, M. Y. Lam, L. Gao, B. Chen, A. Q. Liu, Y. H. Tsang and X. M. Zhang, Narrow-linewidth tunable lasers with retro-reflective external cavity, IEEE Photonics Technology Letters, vol. 24, no. 18, pp. 1591 – 1593, 15 Sep 2012.

71.      N. Wang, X. M. Zhang, B. L. Chen, W. Z. Song, N. Y. Chan, and Helen L. W. Chan, Microfluidic photoelectrocatalytic reactors for water purification with integrated visible-light source, Lab on a Chip, vol. 12, no. 20, pp. 3983–3990, 27 July 2012. (Acknowledged projects: 1-ZV5K, A-PM21 and A-PL16, B-Q26F)

72.      Y. Yang, A. Q. Liu, L. K. Chin, X. M. Zhang, D. P. Tsai, C. L. Lin, C. Lu, G. P. Wang and N. I. Zheludev, Optofluidic waveguide as a transformation optics device for lightwave bending and manipulation, Nature Communications, vol. 3, paper no. 651, 31 January 2012.


73.      Y. H. Fu, A. Q. Liu, W. M. Zhu, X. M. Zhang, D. P. Tsai, J. B. Zhang, T. Mei, J. F. Tao, H. C. Guo, X. H. Zhang, J. H. Teng, N. I. Zheludev, G. Q. Lo, and D. L. Kwong, A micromachined reconfigurable metamaterial via reconfiguration of asymmetric split-ring resonators, Advanced Functional Materials, vol. 21, no. 18, pp. 3589–3594, Aug 2011.

74.      A. Q. Jian, X. M. Zhang, W. M. Zhu, and A. Q. Liu, Liquid refractive index sensors using resonant optical tunneling effect for ultra-high sensitivity, Sensors and Actuators A Physical, vol. 169, no. 2, pp. 347-351, October 2011. (Acknowledged projects: A-PD1S, G-YH81, 1-ZV5K)

75.      N. Wang, L. Lei, X. M. Zhang, Y. H. Tsang, Y. Chen, and Helen L.W. Chan, A comparative study of preparation methods of nanoporous TiO2 films for microfluidic photocatalysis, Microelectronic Engineering, vol. 88, no. 8, pp. 2797–2799, August 2011. (reported to AP by Peter) (Acknowledged projects: A-PD1S, G-YH81, G-YH91)

76.      W. M. Zhu, A. Q. Liu, X. M. Zhang, D. P. Tsai, T. Bourouina, J. H. Teng, X. H. Zhang, H. C. Guo, H. Tanoto, T. Mei, G. Q. Lo, and D. L. Kwong, Switchable magnetic metamaterials using micromachining processes, Advanced Materials, vol. 23, no. 15, pp. 1792–1796, 19 April 2011.

77.      S. T. F. Lee, K. H. Lam, X. M. Zhang and H. L. W. Chan, High-frequency ultrasonic transducer based on lead-free BSZT piezoceramics, Ultrasonics, vol. 51, no. 7, pp. 811-814, Oct 2011.

78.      S. T. F. Lee, K. H. Lam, L. Lei, X. M. Zhang, and H. L. W. Chan, An integrated microfluidic chip with 40 MHz lead-free transducer for fluid analysis, Review of Scientific Instruments, vol. 82, no. 2, paper no. 024903, 25 Feb 2011.

79.      K. Zhang, A. Q. Jian, X. M. Zhang, Y. Wang, Z. H. Li, and H-Y Tam, Laser-induced thermal bubbles for microfluidic applications, Lab on a Chip, vol. 11, no. 7, pp. 1389-1395, 17 Feb 2011. (Acknowledged projects: A-PD1S, G-YH81, 1-ZV5K)


80.      L. Lei, N. Wang, X. M. Zhang, Q. D. Tai, D. P. Tsai and Helen L.W. Chan, Optofluidic planar reactors for photocatalytic water treatment using solar energy, Biomicrofluidics, vol. 4, no. 4, paper no. 043004, 30 December 2010. (Photography used by a Nature Photonics review article “D. Erickson, D. Sinton and D. Psaltis, Optofluidics for energy applications, Nature Photonics, vol. 5, no. 10, Oct 2011.”) (Acknowledged projects: A-PD1S, G-YH81, 1-ZV5K)

81.      A. Q. Jian, X. M. Zhang, W. M. Zhu, and M. Yu, Optofluidic refractometer using resonant optical tunneling effect, Biomicrofluidics, vol. 4, no. 4, paper no. 043008, 30 December 2010. (Acknowledged projects: A-PD1S, G-YH81, 1-ZV5K)

82.      Z. G. Li, Y. Yang, X. M. Zhang A. Q. Liu, J. B. Zhang, L. Cheng and Z. H. Li, Tunable visual color filter using microfluidic grating, Biomicrofluidics, vol. 4, no. 4, paper no. 043013, 30 December 2010.

83.      Y. Chen, L. Lei, K. Zhang, J. Shi, L. Wang, H. Li, X. M. Zhang, Y. Wang, and Helen L. W. Chan, Optofluidic microcavities: dye-lasers and bio-sensors, Biomicrofluidics, vol. 4, no. 4, paper no. 043002, 30 December 2010.

84.      Y. F. Yu, Y. H. Fu, X. M. Zhang, A. Q. Liu, T. Bourouina, T. Mei, Z. X. Shen, and D. P. Tsai, Pure angular momentum generator using a ring resonator, Optics Express, vol. 18, no. 21, pp. 21651-21662, 11 October 2010.

85.      H. Cai, X. M. Zhang, A. Q. Liu, B. Liu, M. B. Yu, G. Q. Lo and D. L. Kwong, Discretely tunable micromachined injection-locked lasers, Journal of Micromechanics and Microengineering, vol. 20, no. 8, paper no. 085018, 8 July 2010.

86.      J. Q. Yu, Y. Yang, A. Q. Liu, L. K. Chin and X. M. Zhang, Microfluidic droplet grating for reconfigurable optical diffraction, Optics Letters, vol. 35, no. 11, pp. 1890-1892, 1 June 2010.

87.      H. Bae, X. M. Zhang, H. Liu and M. Yu, Miniature surface-mountable Fabry-Pérot pressure sensor constructed with a 45-degree angled fiber, Optics Letters, vol. 35, no. 10, pp. 1701-1703, 15 May 2010.


88.      X. M. Zhang, Y. X. Liu, H. Bae, C. Pang, and M. Yu, Phase modulation with micromachined resonant mirrors for low-coherence fiber-tip pressure sensors, Optics Express, vol. 17, no. 26, pp. 23965–23974, 21 December 2009.

89.      E. H. Khoo, A. Q. Liu, X. M. Zhang, E. P. Li, J. Li, D. Pinjala and B. S. Luk'yanchuk, Exact step-coupling theory for mode-coupling behavior in geometrical variation photonic crystal waveguides, Physical Review B, vol. 80, no. 3, paper no. 035101, 1 July 2009.



1.     Xuming Zhang, Chi Chung Tsoi, A microfluidic chip based on dielectrophoresis/electrowettering, China Patents of Invention, Application No. 201910479720.3, filed on 4 June 2019. (In Chinese: 张需明, 蔡智聪, 香港理工大学深圳研究院, 一种基于介电电泳/电浸润效应的微流芯片,中国发明专利, 申请号201910479720.3, 申请日201964.)

2.     Xuming Zhang, Tenghao Li, and Qingming Chen, An optical switch and optical cross-connect device, China Patents of Invention, Application No. 201710851522.6, announced on 03 April 2019. (In Chinese: 张需明, 李腾浩, 陈庆明, 一种光开关及光交叉互连器件, 中国发明专利, 申请号201710851522.6, 公布时间201943.)

3.     Xuming Zhang, Tenghao Li, and Qingming Chen, An optical switch and optical cross-connect device, China Patents for Utility Models, Patent No. 207301404, granted on 1 May 2018. (In Chinese: 张需明, 李腾浩, 陈庆明, 一种光开关及光交叉互连器件, 中国实用新型专利, 专利号207301404, 授权时间2018/05/01)

4.     Xuming Zhang, Tenghao Li, and Qingming Chen, An optical cross-connect device based on liquid crystal electro-optic waveguide, China Patents of Invention, Application No. 201710855251.1, filed on 20 September 2017. (In Chinese: 张需明, 李腾浩, 陈庆明, 一种基于液晶电光波导的光学交叉互连器件, 中国发明专利, 申请号201710855251.1, 申请时间2017920.)

5.     Lei Gao, Bo Chen, Guangyong Zhang, Xuming Zhang, A type of external-cavity laser (In Chinese: 一种外腔激光器), China patent no. CN103004039B, 18 March 2015.

6.     Lei Gao, Bo Chen, Guangyong Zhang, Xuming Zhang, A type of external-cavity laser (In Chinese:一种外腔激光器), China patent no. CN103004039A, 27 March 2013.

7.     M. Yu, H. Bae, and X. M. Zhang, Ultra-miniature fiber-optic pressure sensor system and method of fabrication, US Patents 8,966,988 B2, 3 March 2015.

8.     M. Yu, S. Nesson, Y. X. Liu and X. M. Zhang, Ultra-miniature fiber-optic pressure sensor array system, US patent 8,151,648, 10 April 2012.

9.     A. Q. Liu, X. J. Liang, X. M. Zhang and Y. Sun, Cell analysis using laser with external cavity, US patent 7,767,444, 3 August 2010.

10.  A. Q. Liu, V. M. Murukeshan, X. M. Zhang, and C. Lu, Optical crossconnect and mirror system, Singapore patent 95,730, 31 March 2006.

11.  A. Q. Liu, V. M. MurukeshanX. M. Zhang, and C. Lu, Optical crossconnect and mirror systems, US patent 6,788,843, 7 September 2004.


Honors and Awards

1.     Best Paper Award, IMCO2019 conference, 14 – 17 June 2019, Hong Kong.

2.     Best Poster Paper Award, IMCO2019 conference, 14 – 17 June 2019, Hong Kong.

3.     Second prize, The 11th National College Students' Energy-saving and Emission Reduction Social Practice and Technology Competition, Ministry of Education, China.

4.     Innovation Award, IOO Foundation and IMCO2018 conference.

5.     2017, Best Paper Award, IMCO 2017 conference, 25 – 28 July 2017, Singapore.

6.     2016, Cheminas Best Poster Awards, ISMM 2016 conference, 30 May – 1 June 2016, Hong Kong.

7.     2014, Best Paper Award, Optofluidics 2014 conference, 28 - 30 Aug 2014, Guangzhou, China.

8.     2013, Best Poster Award, ICMAT2013 conference, 30 Jun – 5 Jul 2013, Singapore.

9.     2011, Best Paper Award, Optofluidics 2011 conference, 11 - 13 Dec 2011, Xi'an, China.

10.  2006, IES Prestigious Engineering Achievement Awards, Singapore.

11.  2006, Chinese State Award for Outstanding Self-Financed Students Abroad, Ministry of Education of China.

12.  2005, Singapore Millennium Foundation (SMF) Postdoctoral Fellow.

13.  2005, Young Inventor Awards, Asian Wall Street Journal, Hong Kong.

14.  2005, Gold Prize in CoE Technology Exhibition, Singapore.

15.  2003, Gold Prize in CoE Technology Exhibition, Singapore.


Research Achievements Highlighted by Journals and Public Media

1.     Sky Post (晴報)Research on setup for continuous synthesis of glucose, new invention of PolyU aims to alleviate food crisis (研儀器持續合成葡萄糖 理大新發明紓糧食危機), 18 Oct 2019.

2.     Sing Tao Daily (星島日報), Polyu had three research articles published in Nature journals (理大三項科研論文刊《自然》期刊), 18 Oct 2019.

3.     Natalie W. T. Lee, PolyU graduates invented photocatalytic wastewater purifier, Sing Tao Daily, 6 December 2016, page F2.

4.     Advances in Engineering, Clam-inspired nanoparticle immobilization method using adhesive tape as microchip substrate, 29 April 2016.

5.     Benjamin Skuse, Waste not, want not, International Innovation, no. 148, 14 August 2014, pp. 66–68.

6.     SPIE Newsroom, Optofluidic transformation optics for innovative devices, 24 October 2012. (DOI: 10.1117/2.1201210.004509).

7.     David Pile, Photoelectrocatalysis - Improved efficiency, Nature Photonics, vol. 6, no. 10, Oct 2012, pp. 637.

8.     Oliver Graydon, Laser-induced bubbles create valves and pumps, Nature Photonics, vol. 5, no. 5, May 2011, pp. 256.

9.     Jason Socrates Bardi, Trapped sunlight cleans water, AIP press release, 10 Jan 2011. http://www.newswise.com/

10.  Ovidiu Sandru, Photocatalysis-based water purifier uses sunlight to break down impurities, The Green Optimistic, 11 Jan 2011. http://www.greenoptimistic.com/.

11.  Ben Coxworth, Microfluidics and sunlight combined to purify water, Gizmag, 16 Jan 2011. http://www.gizmag.com/

12.  Daniel Burgess, MEMS structures used to injection-lock miniature laser, Photonics Spectra, pp. 16, Oct 2005.

13.  “Miniaturized injection-locked laser using microelectromechanical systems technology,” published in Applied Physics Letters 87, 101101 (2005), has been selected for the September 12, 2005 issue of Virtual Journal of Nanoscale Science & Technology, http://www.vjnano.org.

14.  "Tunable laser using micromachined grating with continuous wavelength tuning," published in Applied Physics Letters 85, 3684 (2004), has been selected for the November 15, 2004 issue of Virtual Journal of Nanoscale Science & Technology, http://scitation.aip.org/journals/doc/APPLAB-ft/vol_85/iss_17/3684_1-div0.html.

15.  Manfred Lindinger, Laserlicht nach Belieben Ein winziger beweglicher Spiegel beeinflubt die Wellenlänge (English translation: Laser light at discretion), Frankfurter Allgemeine Zeitung, pp. 32, 9 Feb 2004.

16.  Tami Freeman, Optical attenuators get more from MEMS, 8 July 2002, fibers.org,  http://fibers.org/articles/news/4/7/6/1.

17.  Tami Freeman, Low-driving-voltage VOAs exploit MEMS, FibreSystems Europe, pp. 11, June 2002.

18.  Sunny Bains, Fully integrated micromachine laser is tunable, WDM Solutions, pp. 10, July 2001.