Dr James Wang
Senior Lecturer in Imaging and Laser Micromachining
James received BSc and MSc degrees in physics from Xiamen University, P.R. China, in 1997 and 2001 respectively, and a PhD in 2005 in Electrical and Computer Engineering from National University of Singapore (NUS), Singapore.
His research expertise lies in the fields of nanophotonics, metamaterial and laser processing, with special focuses on super-resolution microscopy, imaging, sensing, laser cleaning and processing for industry. He has published more than 150 papers and delivered more than 40 invited talks, with an H-index 29 (Sept. 2018).
James and his ‘Bangor Superlens Team’ is well-known for their pioneering works on microsphere and nanoparticle-based superlens technologies, including ‘microsphere superlens’ and ‘microsphere nanoscope’ (2011, published in Nature Communications), ’spider silk superlens’ (2016, Nano Letters) and ’nanoparticle superlens’ (2016, Science Advances). All these works were widely publicised and appeared in major media including BBC, New York Times, Daily Mail, Independent, Australian BC, China Xinhua and a huge number of science and engineering websites, as well as in RCUK’s ’50 big ideas for the future’. James is the 2016 finalist for ‘Research Excellence Award’ and ‘Dissertation/thesis supervisor of the year’ of Bangor University. He was also selected as a member of 2015 Welsh Crucible cohort (group of young Wales-based leaders in academia, industry and business). He received Most Outstanding R&D Staff Merit Award in 2005 for his contribution in laser cleaning at DSI Singapore.
The latest nanoparticle superlens developed by James and his team is one of the most powerful superlens in the field at present. Compared to other superlenses, Bangor’s superlens produces shaper and better-quality images of super-resolved nanoscale features, including for example 60-nm polystyrene nanoparticles, 45-nm gaps in semiconductor chips and adenoviruses. The team is currently developing a superlens-integrated biochip device and a superlens-based nano-imaging & fabrication system.
James and his team are open to collaboration and look forward to hearing from any potential collaborators. For more information about James please visit his personal website at: http://www.drzwang.com
- Experimental observation of a photonic hookMinin, I, Minin, O, Katyba, G, Chernomyrdin, NV, Kurlov, VN, Zaytsev, KI, Yue, L, Wang, Z & Christodoulides, DN 2019, 'Experimental observation of a photonic hook', Applied Physics Letters, vol. 114, 031105 . https://doi.org/10.1063/1.5065899
- A wide-angle shift-free metamaterial filter design for anti-laser striking applicationMonks, J, Yue, L, Yan, B, Aldred, B, Hurst, A & Wang, Z 2018, 'A wide-angle shift-free metamaterial filter design for anti-laser striking application', Optics Communications, vol. 429, pp. 53-59. https://doi.org/10.1016/j.optcom.2018.07.065
- Enhancing photovoltaic performance of perovskite solar cells with silica nanosphere antireflection coatingsLuo, Q, Deng, X, Yu, M, Zhang, C, Zhou, X, Wang, Z, Chen, X & Huang, S 2018, 'Enhancing photovoltaic performance of perovskite solar cells with silica nanosphere antireflection coatings', Solar Energy, vol. 169, pp. 128-135. https://doi.org/10.1016/j.solener.2018.04.044
- A millimetre-wave cuboid solid immersion lens with intensity-enhanced amplitude mask apodizationYue, L, Yan, B, Monks, J, Dhama, R, Wang, Z, Minin, O & Minin, I 2018, 'A millimetre-wave cuboid solid immersion lens with intensity-enhanced amplitude mask apodization', Journal of Infrared, Millimeter, and Terahertz Waves, vol. 39, no. 6, pp. 546-552. https://doi.org/10.1007/s10762-018-0479-1
- Photonic Jet by a Near‐Unity‐Refractive‐Index Sphere on a Dielectric Substrate with High Index ContrastYue, L, Yan, B, Monks, J, Dhama, R, Wang, Z, Minin, O & Minin, I 2018, 'Photonic Jet by a Near‐Unity‐Refractive‐Index Sphere on a Dielectric Substrate with High Index Contrast', Annalen der Physik, vol. 530, no. 6, 1800032. https://doi.org/10.1002/andp.201800032
- Photonic hook: a new curved light beamYue, L, Minin, O, Wang, Z, Monks, J, Shalin, A & Minin, I 2018, 'Photonic hook: a new curved light beam', Optics Letters, vol. 43, no. 4, pp. 771-774. https://doi.org/10.1364/OL.43.000771
- Intensity‐Enhanced Apodization Effect on an Axially Illuminated Circular‐Column Particle‐LensYue, L, Yan, B, Monks, J, Dhama, R, Wang, Z, Minin, O & Minin, I 2018, 'Intensity‐Enhanced Apodization Effect on an Axially Illuminated Circular‐Column Particle‐Lens', Annalen der Physik, vol. 530, no. 2, 1700384.
- Plasmonic Effects of Metallic Nanoparticles on Enhancing Performance of Perovskite Solar CellsLuo, Q, Zhang, C, Deng, X, Zhu, H, Li, Z, Wang, Z, Chen, X & Huang, S 2017, 'Plasmonic Effects of Metallic Nanoparticles on Enhancing Performance of Perovskite Solar Cells', ACS Applied materials and interfaces, vol. 9, no. 40, pp. 34821–34832. https://doi.org/10.1021/acsami.7b08489
- Effects of down-conversion CeO2: Eu3+ nanophosphors in perovskite solar cellsChen, W, Luo, Q, Zhang, C, Shi, J, Deng, X, Yue, L, Wang, Z, Chen, X & Huang, S 2017, 'Effects of down-conversion CeO2: Eu3+ nanophosphors in perovskite solar cells', Journal of Materials Science: Materials in Electronics, vol. 28, no. 15, pp. 11346. https://doi.org/10.1007/s10854-017-6928-0
- Large-area formation of microsphere arrays using laser surface texturing technologyYue, L, Monks, J, Yan, B & Wang, Z 2017, 'Large-area formation of microsphere arrays using laser surface texturing technology', Applied Physics A: Materials Science and Processing, vol. 123, 318. https://doi.org/10.1007/s00339-017-0946-x
- Superlensing microscope objective lensYan, B, Wang, Z, Parker, A, Lai, Y, Prabhakar, JT, Yue, L & Monks, J 2017, 'Superlensing microscope objective lens', Applied Optics, vol. 56, no. 11, pp. 3142. https://doi.org/10.1364/AO.56.003142
- Efficient perovskite solar cells by combination use of Au nanoparticles and insulating metal oxideZhang, C, Luo, Q, Shi, J, Yue, L, Wang, Z, Chen, X & Huang, S 2017, 'Efficient perovskite solar cells by combination use of Au nanoparticles and insulating metal oxide', Nanoscale, vol. 9, no. 8, pp. 2852-2864. https://doi.org/10.1039/C6NR09972F
- Production of photonic nanojets by using pupil-masked 3D dielectric cuboidYue, L, Yan, B, Monks, J, Wang, Z, Nguyen, TT, Vu, D, Minin, O & Minin, I 2017, 'Production of photonic nanojets by using pupil-masked 3D dielectric cuboid', Journal of Physics D: Applied Physics, vol. 50, 175102. https://doi.org/10.1088/1361-6463/aa61cb
- Spider SilkMonks, J, Yan, B, Hawkins, N, Vollrath, F & Wang, Z 2016, 'Spider Silk: Mother Nature’s Bio-Superlens', Nano Letters, vol. 16, pp. 5842−5845. https://doi.org/10.1021/acs.nanolett.6b02641
- Three-dimensional all-dielectric metamaterial solid immersion lens for subwavelength imaging at visible frequenciesFang, W, Yan, B, Wang, Z & Wu, L 2016, 'Three-dimensional all-dielectric metamaterial solid immersion lens for subwavelength imaging at visible frequencies', Science Advances, vol. 2, no. 8, e1600901. https://doi.org/10.1126/sciadv.1600901
- Engineering near-field focusing of a microsphere lens with pupil masksYan, B, Yue, L & Wang, Z 2016, 'Engineering near-field focusing of a microsphere lens with pupil masks', Optics Communications, vol. 370, pp. 140. https://doi.org/10.1016/j.optcom.2016.03.008
- Photonic nanojet of cylindrical metalens assembled by hexagonally arranged nanofibers for breaking the diffraction limitYue, L, Yan, B & Wang, Z 2016, 'Photonic nanojet of cylindrical metalens assembled by hexagonally arranged nanofibers for breaking the diffraction limit', Optics Letters, vol. 41, no. 7, pp. 1336-1339.
- Light absorption in perovskite solar cell: Fundamentals and plasmonic enhancement of infrared band absorptionYue, L, Wang, Z, Yue, LY, Yan, B, Attridge, M & Wang, ZB 2015, 'Light absorption in perovskite solar cell: Fundamentals and plasmonic enhancement of infrared band absorption', Solar Energy, vol. 124, pp. 143-152. https://doi.org/10.1016/j.solener.2015.11.028
- Synthesis and super-resolution imaging performance of a refractive-index-controllable microsphere superlensWang, Z, Zhu, HE, Yan, B, Zhou, SX, Wang, ZB & Wu, LM 2015, 'Synthesis and super-resolution imaging performance of a refractive-index-controllable microsphere superlens', Journal of Materials Chemistry C, vol. 3, no. 41, pp. 10907-10915. https://doi.org/10.1039/C5TC02310F
- Nano-Fano Resonances and Topological OpticsWang, Z, Lukyanchuk, BS, Wand, ZB, Miroshnichenko, AE, Kivshar, YS, Kuznetsov, AI, Gao, DL, Gao, L, Qiu, CW, Boriskina, S (ed.) & Zheludev, NI (ed.) 2014, Nano-Fano Resonances and Topological Optics. in Singular and Chiral Nanoplasmonics. 2014 edn, pp. 285-310.
- Surface plasmon resonance assisted rapid laser joining of glassZolotovskaya, SA, Tang, G, Wang, Z & Abdolvand, A 2014, 'Surface plasmon resonance assisted rapid laser joining of glass', Applied Physics Letters, vol. 105, no. 8, pp. 083109. https://doi.org/10.1063/1.4894118
- Large enhancements of NaYF4:Yb/Er/Gd nanorod upconversion emissions via coupling with localized surface plasmon of Au filmLuo, Q, Chen, Y, Li, Z, Zhu, F, Chen, X, Sun, Z, Wei, Y, Guo, H, Wang, Z & Huang, S 2014, 'Large enhancements of NaYF4:Yb/Er/Gd nanorod upconversion emissions via coupling with localized surface plasmon of Au film', Nanotechnology, vol. 25, no. 18, pp. 185401. https://doi.org/10.1088/0957-4484/25/18/185401
- Design optimisation of metallic sub-wavelength nanowire lasersSatter, ZA, Shore, KA & Wang, Z 2014, 'Design optimisation of metallic sub-wavelength nanowire lasers', IET Optoelectronics, vol. 8, no. 2, pp. 129-136. https://doi.org/10.1049/iet-opt.2013.0059
- Facile synthesis of asymmetric Ag–organosilica hybrid nanoparticles with tunable morphologies and optical propertiesSun, Y, Chen, M, Wang, Z & Wu, L 2014, 'Facile synthesis of asymmetric Ag–organosilica hybrid nanoparticles with tunable morphologies and optical properties', Chemical Communications, vol. 2014, no. 50, pp. 5767-5770. https://doi.org/10.1039/C4CC02137A
- Wave-Guiding Analysis of Annular Core Geometry Metal-Clad Semiconductor Nano-LasersSatter, ZA, Shore, KA & Wang, Z 2013, 'Wave-Guiding Analysis of Annular Core Geometry Metal-Clad Semiconductor Nano-Lasers', IEEE Journal of Quantum Electronics, vol. 50, no. 1, pp. 15-22. https://doi.org/10.1109/JQE.2013.2291662
- Modeling and simulation of laser cleaning of tapered micro-slots with different temporal pulsesYue, L, Wang, Z & Li, L 2013, 'Modeling and simulation of laser cleaning of tapered micro-slots with different temporal pulses', Optics and Laser Technology, vol. 45, pp. 533-539. https://doi.org/10.1016/j.optlastec.2012.05.036
- Axial laser beam cleaning of tiny particles on narrow slot sidewallsYue, L, Wang, Z, Guo, W & Li, L 2012, 'Axial laser beam cleaning of tiny particles on narrow slot sidewalls', Journal of Physics D: Applied Physics, vol. 45, no. 36, pp. 365106. https://doi.org/10.1088/0022-3727/45/36/365106
- Material morphological characteristics in laser ablation of alpha case from titanium alloyYue, L, Wang, Z & Li, L 2012, 'Material morphological characteristics in laser ablation of alpha case from titanium alloy', Applied Surface Science, vol. 258, no. 20, pp. 8065-8071. https://doi.org/10.1016/j.apsusc.2012.04.173
- Multiphysics modelling and simulation of dry laser cleaning of micro-slots with particle contaminantsYue, L, Wang, Z & Li, L 2012, 'Multiphysics modelling and simulation of dry laser cleaning of micro-slots with particle contaminants', Journal of Physics D: Applied Physics, vol. 45, no. 13, pp. 135401. https://doi.org/10.1088/0022-3727/45/13/135401
- Laser generation of elliptical nanometre and sub-nanometre bump arrays on NiP/Al data storage disks and their effect on stiction performanceWang, Z, Pena, AA, Wang, ZB, Zhang, J, Wu, NE & Li, L 2011, 'Laser generation of elliptical nanometre and sub-nanometre bump arrays on NiP/Al data storage disks and their effect on stiction performance', Nanotechnology, vol. 22, no. 36, pp. 365302. https://doi.org/10.1088/0957-4484/22/36/365302
- Laser sub-micron patterning of rough surfaces by micro-particle lens arraysKhan, A, Wang, Z, Sheikh, MA & Li, L 2011, 'Laser sub-micron patterning of rough surfaces by micro-particle lens arrays', International Journal of Manufacturing, Materials, and Mechanical Engineering, vol. 1, no. 3, pp. 1-9. https://doi.org/10.4018/ijmmme.2011070101
- Optical virtual imaging at 50 nm lateral resolution with a white-light nanoscopeWang, Z, Guo, W, Li, L, Luk'yanchuk, B, Khan, A, Liu, Z, Chen, Z & Hong, M 2011, 'Optical virtual imaging at 50 nm lateral resolution with a white-light nanoscope', Nature Communications, vol. 2, pp. Article No. 218. https://doi.org/10.1038/ncomms1211
- Laser micro/nano fabrication in glass with tunable-focus particle lens arrayWang, Z, Guo, G, Pena, A, Whitehead, DJ, Luk'yanchuk, BS, Li, L, Liu, Z, Zhou, Y & Hong, MH 2008, 'Laser micro/nano fabrication in glass with tunable-focus particle lens array', Optics Express, vol. 16, no. 24, pp. 19706-19711. https://doi.org/10.1364/OE.16.019706
- The influences of particle number on hot spots in strongly coupled metal nanoparticles chainWang, Z, Luk’yanchuk, BS, Guo, W, Edwardson, SP, Whitehead, DJ, Li, L & Watkins, KG 2008, 'The influences of particle number on hot spots in strongly coupled metal nanoparticles chain', Journal of Chemical Physics, vol. 128, no. 9, pp. 094705. https://doi.org/10.1063/1.2835598
- Laser Engraving
Using a laser engraving equipment and a software to show the visitors the process of the laser engraving. The marking process will be recorded through a video camera and shown on a computer monitor, so the visitors will be able to watch the whole marking process.
11 Aug 2017 – 12 Aug 2017
Activity: Types of Public engagement and outreach - Public lecture/debate/seminar (Contributor)
- Bangor Science Festival 2017
Popular laser marking session, with more than 200 key tags marked with visitor's name on it and distributed as free-gift
11 Mar 2017
Activity: Types of Public engagement and outreach - Schools engagement (Contributor)
- Spider silk helps creates microscope superlens
Spider silk has been used to create a superlens for a microscope, allowing scientists to view objects previously deemed "invisible".
Physical laws of light make it impossible to view structures smaller than 200 nanometers - the smallest size of bacteria - using a normal microscope alone.
But scientists from Bangor and Oxford universities found the silk lets them see beyond the current magnification.
The discovery was hailed as "exciting".
Bangor University said extending the limit of the classical microscope's resolution had been the "Holy Grail" of microscopy for over a century and superlenses had been the goal since the turn of the millennium.
Manufactured superlenses have previously been used but this is believed to be the first time a naturally occurring biological material had been used to create one.
The team found applying the dragline silk of a golden silk orb-weaver spider to the material being viewed provided an additional two to three times magnification.
This allowed them to view structures previously classed as "invisible", including some germs and viruses.
The findings have been published in a paper in the nanoscience research journal Nano Letters.
Dr Zengbo Wang, who led Bangor's team, said producing manufactured superlenses involved some complex engineering processes and finding a natural superlens was important "so that everyone can access superlenses".
Prof Fritz Vollrath, whose silk group at Oxford University's department of zoology collaborated on the project, said it was "very exciting".
"These lenses could be used for seeing and viewing previously 'invisible' structures, including engineered nano-structures and biological micro-structures as well as, potentially, native germs and viruses," he said.
"In much the same was as when you look through a cylindrical glass or bottle, the clearest image only runs along the narrow strip directly opposite your line of vision, or resting on the surface being viewed, the single filament provides a one-dimensional viewing image along its length."
The golden silk orb-weaver spider - often called Nephila or banana spiders - are known for the impressive webs they weave and are found in warmer regions around the world.
22 Aug 2016
Activity: Types of Public engagement and outreach - Media article or participation (Contributor)
- 81400 The Centre for Photonics Expertise (CPE)
- Combat Counterfeiting with Invisible Photonic Printing (CCIPP)
- KESS II PhD project with Qioptiq Ltd BUK289
- Nanoparticle-based superlens and optical nanoscope
- Scanning microsphere nanoscopy for live cell/virus imaging
- 3D Printing of Functional Photonic Metamaterial Devices
- On-chip Microfludic Nanoscope for Super-resolution Imaging and Analysis