Zhen Wang
The Chinese University of Hong Kong
41 Papers
63 Citations
Zhen Wang is an academic researcher from The Chinese University of Hong Kong. The author has contributed to research in topics: Photoacoustic spectroscopy & Laser. The author has an hindex of 13, co-authored 30 publications.
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Papers
Mercury Telluride Quantum Dot Based Phototransistor Enabling High-Sensitivity Room-Temperature Photodetection at 2000 nm
Mengyu Chen,Haipeng Lu,Nema M. Abdelazim,Ye Zhu,Zhen Wang,Wei Ren,Stephen V. Kershaw,Andrey L. Rogach,Ni Zhao +8 more
TL;DR: A fully automated aprotic solvent, gas-injection synthesis method that allows scalable fabrication of large sized HgTe QDs with high quality, exhibiting a record high photoluminescence quantum yield, and demonstrating room-temperature device response to reach specific detectivity beyond the 2 μm wavelength range.
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Doubly resonant photoacoustic spectroscopy: ultra-high sensitivity meets ultra-wide dynamic range
Zhen Wang,Liang Wang,Hui Zhang,Simone Borri,Iacopo Galli,Angelo Sampaolo,Pietro Patimisco,Vincenzo Spagnolo,P. De Natale,Wei Ren +9 more
TL;DR: In this paper , a gas sensor based on doubly resonant photoacoustic spectroscopy (PAS) was developed, in which the acoustic and optical waves are simultaneously enhanced using combined optical and acoustic resonators in a centimeter-long configuration.
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A portable low-power QEPAS-based CO2 isotope sensor using a fiber-coupled interband cascade laser
TL;DR: In this paper, a CO 2 isotope sensor using quartz-enhanced photoacoustic spectroscopy (QEPAS) with a continuous-wave interband cascade laser (ICL) was presented.
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Fiber-ring laser intracavity QEPAS gas sensor using a 7.2 kHz quartz tuning fork
TL;DR: In this paper, a trace gas sensor exploiting fiber-ring laser intracavity quartz-enhanced photoacoustic spectroscopy (FLI-QEPAS) is reported.
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Ultrasensitive photoacoustic detection in a high-finesse cavity with Pound-Drever-Hall locking.
TL;DR: The results demonstrate the feasibility of merging PAS with a high-finesse cavity using PDH locking for ultrasensitive trace gas detection and the present photoacoustic spectroscopy (PAS) sensor achieves a normalized noise equivalent absorption coefficient of 1.1×10-11 cm-1 WHz-1/2, which is unprecedented sensitivity among all the current PAS sensors.
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