Search Results - "Zheng, Huadan"
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Beat frequency quartz-enhanced photoacoustic spectroscopy for fast and calibration-free continuous trace-gas monitoring
Published in Nature communications (31-05-2017)“…Quartz-enhanced photoacoustic spectroscopy (QEPAS) is a sensitive gas detection technique which requires frequent calibration and has a long response time…”
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Quartz enhanced photoacoustic H2S gas sensor based on a fiber-amplifier source and a custom tuning fork with large prong spacing
Published in Applied physics letters (14-09-2015)“…A quartz enhanced photoacoustic spectroscopy (QEPAS) sensor, employing an erbium-doped fiber amplified laser source and a custom quartz tuning fork (QTF) with…”
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Non-contact quartz-enhanced photoacoustic spectroscopy
Published in Applied physics letters (13-03-2023)“…Non-contact quartz-enhanced photoacoustic spectroscopy (NC-QEPAS) was proposed and developed for trace gas analysis. The NC-QEPAS aims at solving the problem…”
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Real-time visible light positioning supporting fast moving speed
Published in Optics express (11-05-2020)“…Real-time capability is a key factor which affects the practicality of an indoor positioning system significantly. While visible light positioning (VLP) is…”
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Ppb-level gas detection using on-beam quartz-enhanced photoacoustic spectroscopy based on a 28 kHz tuning fork
Published in Photoacoustics (Munich) (01-03-2022)“…In this paper, an on-beam quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor based on a custom quartz tuning fork (QTF) acting as a photoacoustic…”
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Dynamics of polarization-tuned mirror symmetry breaking in a rotationally symmetric system
Published in Nature communications (03-07-2024)“…Lateral momentum conservation is typically kept in a non-absorptive rotationally symmetric system through mirror symmetry via Noether’s theorem when…”
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Compact photoacoustic module for methane detection incorporating interband cascade light emitting device
Published in Optics express (10-07-2017)“…A photoacoustic module (PAM) for methane detection was developed by combining a novel 3.2 μm interband cascade light emitting device (ICLED) with a compact…”
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Quartz-enhanced photoacoustic spectrophones exploiting custom tuning forks: a review
Published in Advances in physics: X (01-01-2017)“…A detailed review on the design and realization of spectrophones exploiting custom quartz tuning forks (QTFs) aimed to applications of quartz-enhanced…”
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Impact of Humidity on Quartz-Enhanced Photoacoustic Spectroscopy Based CO Detection Using a Near-IR Telecommunication Diode Laser
Published in Sensors (Basel, Switzerland) (27-01-2016)“…A near-IR CO trace gas sensor based on quartz-enhanced photoacoustic spectroscopy (QEPAS) is evaluated using humidified nitrogen samples. Relaxation processes…”
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Fiber-amplifier-enhanced QEPAS sensor for simultaneous trace gas detection of NH₃ and H₂S
Published in Sensors (Basel, Switzerland) (21-10-2015)“…A selective and sensitive quartz enhanced photoacoustic spectroscopy (QEPAS) sensor, employing an erbium-doped fiber amplifier (EDFA), and a distributed…”
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Integrated near-infrared QEPAS sensor based on a 28 kHz quartz tuning fork for online monitoring of CO2 in the greenhouse
Published in Photoacoustics (Munich) (01-03-2022)“…In this paper, a highly sensitive and integrated near-infrared CO2 sensor was developed based on quartz-enhanced photoacoustic spectroscopy (QEPAS). Unlike…”
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Spider Silk-Improved Quartz-Enhanced Conductance Spectroscopy for Medical Mask Humidity Sensing
Published in Molecules (Basel, Switzerland) (05-07-2022)“…Spider silk is one of the hottest biomaterials researched currently, due to its excellent mechanical properties. This work reports a novel humidity sensing…”
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Ppbv-level mid-infrared photoacoustic sensor for mouth alcohol test after consuming lychee fruits
Published in Photoacoustics (Munich) (01-10-2023)“…A ppbv-level mid-infrared photoacoustic spectroscopy sensor was developed for mouth alcohol tests. A compact CO2 laser with a sealed waveguide and integrated…”
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Quartz-enhanced photoacoustic spectroscopy employing pilot line manufactured custom tuning forks
Published in Photoacoustics (Munich) (01-03-2020)“…•Pilot line manufactured custom quartz tuning forks (QTFs) with a resonance frequency of 28 kHz and a Q value of >30, 000 in a vacuum and ∼ 7500 in the air,…”
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Editorial: Acquisition and application of multimodal sensing information
Published in Frontiers in physics (13-09-2023)Get full text
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Side Polished Fiber: A Versatile Platform for Compact Fiber Devices and Sensors
Published in Photonic sensors (Berlin) (01-03-2023)“…Side polished fiber (SPF) has a controllable average roughness and length of the side-polishing region, which becomes a versatile platform for integrating…”
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Highly-Sensitive H2O Sensor Exploiting a 1.39 μm Near-Infrared Distributed-Feedback Laser Diode
Published in Journal of Russian laser research (01-09-2022)“…We use a 1392 nm distributed-feedback laser diode to develop a highly-sensitive optical gas sensor. The sensor is based on quartz-enhanced photoacoustic…”
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Giant Photonic Spin Hall Effect by Anisotropic Band in Photonic Crystal Slabs
Published in IEEE photonics journal (01-12-2022)“…When a paraxial light beam is reflected from/transmitted through an optical element with rotation symmetry, a tiny small incident angle can arise…”
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Residual thickness enhanced core-removed D-shaped single-mode fiber and its application for VOC evaporation monitoring
Published in Optics express (11-05-2020)“…A core-removed D-shaped structure with different residual thickness (RT) was manufactured on a single mode silica fiber (SMF) to enhance the sensitivity by…”
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Sub-ppb level HCN photoacoustic sensor employing dual-tube resonator enhanced clamp-type tuning fork and U-net neural network noise filter
Published in Photoacoustics (Munich) (01-08-2024)“…Hydrogen cyanide (HCN) is a toxic industrial chemical, necessitating low-level detection capabilities for safety and environmental monitoring. This study…”
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