Dr. Yuen Hong Tsang Profile

Dr. Yuen Hong Tsang

Post-Doctoral Research Associate at Hong Kong Polytechnic Univ

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Author

Publications (15)

Proceedings Article | 12 March 2024 Presentation + Paper

Nonlinear optical responses of ternary 2D GeSeTe nanosheets in NIR regime

Sumaiya Umme Hani, Safayet Ahmed, Tawsif Ibne Alam, Yuen Hong Tsang

Proceedings Volume 12888, 1288809 (2024) https://doi.org/10.1117/12.3015104

KEYWORDS: Lithium, Graphene, Applied physics

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Proceedings Article | 12 March 2024 Presentation + Paper

All van der Waals photodetector for ultralow dark current

Tawsif Alam, Sumaiya Hani, Safayet Ahmed, Y. Tsang

Proceedings Volume 12888, 128880A (2024) https://doi.org/10.1117/12.3017997

KEYWORDS: Photodetectors, Dark current, Light sources and illumination, Heterojunctions, Ultraviolet radiation, Photocurrent, Signal detection, Metals, Graphene

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Proceedings Article | 5 March 2022 Poster + Presentation + Paper

Localized surface plasmon resonance induced temperature enhancement by MWCNT-HfTe2 van der Waals heterostructure

Ahmed Mortuza Saleque, Safayet Ahmed, Md. Nahian Al Subri Ivan, Mohammad Ismail Hossain, Wayesh Qarony, Yuen Hong Tsang

Proceedings Volume 12003, 120030A (2022) https://doi.org/10.1117/12.2623411

KEYWORDS: Foam, Copper, Heterojunctions, Infrared cameras, Resonance enhancement, Surface plasmons, Absorption, Scanning electron microscopy, Absorbance, Transmission electron microscopy

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Proceedings Article | 5 March 2022 Poster + Presentation + Paper

Layer dependent second harmonic generation of two-dimensional gallium sulfide (GaS)

Safayet Ahmed, Junpeng Qiao, Ping Kwong Cheng, Ahmed Mortuza Saleque, Md. Nahian Al Subri Ivan, Mohammad Ismail Hossain, Wayesh Qarony, Yuen Hong Tsang

Proceedings Volume 12003, 1200309 (2022) https://doi.org/10.1117/12.2623081

KEYWORDS: Second-harmonic generation, Signal detection, Nonlinear optics, Harmonic generation, Gallium, Scanning electron microscopy, X-ray diffraction, Saturable absorption, Pulsed laser operation, Photonics

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Proceedings Article | 20 August 2020 Presentation

Photon management in perovskite solar cells by nanohole front contact

Mohammad Ismail Hossain, Wayesh Qarony, Safayet Ahmed, Ahmed M. Saleque, Juan Antonio Zapien, Dietmar Knipp, Yuen Hong Tsang

Proceedings Volume 11474, 1147417 (2020) https://doi.org/10.1117/12.2579343

KEYWORDS: Solar cells, Perovskite, Refractive index, Reflection, Quantum efficiency, Finite-difference time-domain method, Spherical lenses, Photovoltaics, Finite element methods, Energy conversion efficiency

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Proceedings Article | 24 April 2020 Presentation

Color imaging sensors with perovskite alloys (Conference Presentation)

Mohammad Ismail Hossain, Wayesh Qarony, Haris Ahmad Khan, Masayuki Kozawa, Alberto Salleo, Jon Yngve Hardeberg, Hiroyuki Fujiwara, Yuen Hong Tsang, Dietmar Knipp

Proceedings Volume 11378, 113780W (2020) https://doi.org/10.1117/12.2572385

KEYWORDS: Sensors, Perovskite, Optical filters, Color imaging, Image sensors, Quantum efficiency, Digital cameras, Channel projecting optics, Diodes, Modeling

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Proceedings Article | 5 August 2009 Paper

Recent advances in mid-IR optical fibres for chemical and biological sensing in the 2-15um spectral range

Animesh Jha, Xin Jiang, Joris Lousteau, Billy Richards, Hongxia Li, William MacPherson, Henry Bookey, James Barton, Ajoy Kar, Yuen Tsang, David Binks

Proceedings Volume 7386, 73860V (2009) https://doi.org/10.1117/12.840477

KEYWORDS: Mid-IR, Glasses, Sensors, Spectroscopy, Chemical analysis, Refractive index, Absorption, Optical fibers, Raman spectroscopy, Oxides

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Proceedings Article | 15 October 2008 Paper

CW and Q-switched 2.1 µm Tm3+/Ho3+/Yb3+-triply-doped tellurite fibre lasers

Billy D. Richards, Yuen Tsang, David Binks, Joris Lousteau, Animesh Jha

Proceedings Volume 7111, 711105 (2008) https://doi.org/10.1117/12.800134

KEYWORDS: Fiber lasers, Silica, Glasses, Reflectivity, Continuous wave operation, Q switched lasers, Absorption, Energy transfer, Output couplers, Mirrors

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Proceedings Article | 22 April 2008 Paper

Numerical rate equation modelling of a 1.61 µm pumped ~2 µm Tm3+-doped tellurite fibre laser

Billy Richards, Craig Evans, Zoran Ikonić, Paul Harrison, Yuen Tsang, David Binks, Joris Lousteau, Animesh Jha

Proceedings Volume 6998, 69981T (2008) https://doi.org/10.1117/12.782349

KEYWORDS: Fiber lasers, Reflectivity, Output couplers, Absorption, Glasses, Ions, Modeling, Silica, Refractive index, Cladding

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Proceedings Article | 16 April 2008 Paper

A mechanically Q-switched Yb:Er:YVO4 laser

Yuen Tsang, Colin Mercer, David Binks

Proceedings Volume 6998, 69981P (2008) https://doi.org/10.1117/12.781302

KEYWORDS: Q switching, Q switched lasers, Semiconductor lasers, Q switches, Pulsed laser operation, Ions, Erbium, Crystals, Ytterbium, Laser resonators

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Proceedings Article | 16 April 2008 Paper

A Q-switched Nd:YCOB laser

C. Mercer, Y. Tsang, D. Binks, H. Zhang, J. Wang

Proceedings Volume 6998, 69981I (2008) https://doi.org/10.1117/12.780610

KEYWORDS: Pulsed laser operation, Q switched lasers, Semiconductor lasers, Q switches, Energy efficiency, Diodes, Crystals, Mirrors, Q switching, Absorption

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Proceedings Article | 16 April 2008 Paper

Record performance from a passively Q-switched Yb:Er:YVO4 laser

Yuen Tsang, Colin Mercer, David Binks

Proceedings Volume 6998, 69980U (2008) https://doi.org/10.1117/12.781245

KEYWORDS: Crystals, Absorption, Erbium, Q switching, Q switched lasers, Ions, Semiconductor lasers, Tin, Ytterbium, Laser crystals

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Proceedings Article | 3 October 2007 Paper

Efficient 1.9 μm Tm3+/Yb3+-doped tellurite fibre laser

Billy Richards, Yuen Tsang, David Binks, Joris Lousteau, Animesh Jha

Proceedings Volume 6750, 675005 (2007) https://doi.org/10.1117/12.738488

KEYWORDS: Thulium, Ytterbium, Output couplers, Fiber lasers, Reflectivity, Absorption, Glasses, Silica, Fluorine, Erbium

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Proceedings Article | 17 April 2006 Paper

Efficient 2.96 micron dysprosium-doped ZBLAN fibre laser pumped at 1.3 micron

Yuen Tsang, Atalla El-Taher, Terence King, Kuang-Po Chang, Stuart Jackson

Proceedings Volume 6190, 61900J (2006) https://doi.org/10.1117/12.666892

KEYWORDS: Dysprosium, Fiber lasers, ZBLAN, Absorption, Raman spectroscopy, Nd:YAG lasers, Luminescence, Argon ion lasers, Ytterbium, Spectroscopy

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Proceedings Article | 17 April 2006 Paper

Three colour operation of a diode-pumped broadband Yb-doped fibre laser

Atalla El-Taher, Yuen Tsang, David Binks

Proceedings Volume 6190, 61900G (2006) https://doi.org/10.1117/12.662092

KEYWORDS: Fiber lasers, Second-harmonic generation, Atomic force microscopy, Nonlinear crystals, Mirrors, Semiconductor lasers, Harmonic generation, Continuous wave operation, Crystals, Infrared radiation

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Showing 5 of 15 publications

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