Results 141 to 150 of about 3,994 (183)

Detecting parts-per-billion carbon monoxide with an ultra-enhanced near-infrared photoacoustic sensor. [PDF]

Photoacoustics
Cheng Y, Chen T, Zhang R, He S.
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Resonant Capacitive MEMS Coupled to a T-Shaped Acoustic Cavity for Enhanced Photoacoustic Gas Detection. [PDF]

Sensors (Basel)
Pages F, Charensol J, Seoudi T, Goutorbe J, Laporte L, Ayache D, Naoum FA, Rosenkrantz E, Vicet A, Bahriz M.   +9 more
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Detection technologies and sensing systems for crop pest identification and infestation severity prediction: a review. [PDF]

Front Plant Sci
Chen T, Wang Y, Dang J, Zhang F, Wang C.
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Simultaneous Detection of ¹²CH₄, ¹³CH₄, and Related Isotope Ratio Exploiting a Frequency-Multiplexed Mid-Infrared Quartz-Enhanced Photoacoustic Sensor. [PDF]

ACS Sens
Olivieri M, Elefante A, Menduni G, Giglio M, Wu H, Dong L, Patimisco P, Spagnolo V, Sampaolo A.   +8 more
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Multifunctional lithium niobate platform for photodetection and photoacoustic and thermoelastic gas sensing. [PDF]

Nat Commun
Lin H, Zheng H, Zhu W, Zhong Y, Yu J, Wu H, Jia Z, Zhang J, Sampaolo A, Patimisco P, Lu H, Jia X, Spagnolo V, Dong L.   +13 more
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Radial-cavity quartz-enhanced photoacoustic spectroscopy

Optics Letters, 2021
Radial-cavity quartz-enhanced photoacoustic spectroscopy (RC-QEPAS) was proposed for trace gas analysis. A radial cavity with (0,0,1) resonance mode was coupled with the quartz tuning fork (QTF) to greatly enhance the QEPAS signal and facilitate the optical alignment.
Haohua Lv, Huadan Zheng, Yihua Liu, Zhifei Yang, Qian Wu, Haoyang Lin, Baiyang Antonio Zhou Montano, Wenguo Zhu, Jianhui Yu, Ruifeng Kan, Zhe Chen, Frank K. Tittel   +11 more
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Helmholtz-resonator quartz-enhanced photoacoustic spectroscopy

Optics Letters, 2023
In this work, Helmholtz-resonator quartz-enhanced photoacoustic spectroscopy (HR-QEPAS) was developed for trace gas sensing. A pair of Helmholtz resonators with high-order resonance frequency was designed and coupled with a quartz tuning fork (QTF).
Huijian Luo, Chenglong Wang, Haoyang Lin, Qian Wu, Zhifei Yang, Wenguo Zhu, Yongchun Zhong, Ruifeng Kan, Jianhui Yu, Huadan Zheng   +9 more
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Differential quartz-enhanced photoacoustic spectroscopy

Applied Physics Letters, 2023
In this paper, a differential quartz-enhanced photoacoustic spectroscopy (D-QEPAS) sensor is reported. The differential photoacoustic cell (PAC) was used to generate the photoacoustic effect. Two quartz tuning forks (QTFs) with a quality factor (Q) up to 10 000 were used as the acoustic wave transducers. The signal of D-QEPAS sensor was doubly enhanced
Chu Zhang, Shunda Qiao, Ying He, Sheng Zhou, Lei Qi, Yufei Ma   +5 more
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Off-beam quartz-enhanced photoacoustic spectroscopy

Optics Letters, 2009
An off-beam (OB) detection approach is suggested and experimentally investigated and optimized for quartz-enhanced photoacoustic spectroscopy (QEPAS). This OB-QEPAS configuration, very simple in assembly, not only allows for use of larger excitation optical beams and facilitating optical alignment but also provides higher enhancement of photoacoustic ...
Kun, Liu, Xiaoyong, Guo, Hongming, Yi, Weidong, Chen, Weijun, Zhang, Xiaoming, Gao   +5 more
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