High-sensitivity methane detection based on QEPAS and H-QEPAS technologies combined with a self-designed 8.7 kHz quartz tuning fork by Tiantian Liang, Shunda Qiao, Yanjun Chen, Ying He, Yufei Ma

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Photoacoustic Techniques for Trace Gas Sensing Based on Semiconductor Laser Sources by Vincenzo Spagnolo, Cinzia Di Franco, Angela Elia, Pietro Mario Lugarà

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Quartz-Enhanced Photoacoustic Sensor Based on a Multi-Laser Source for In-Sequence Detection of NO₂, SO₂, and NH₃ by Pietro Patimisco, Nicoletta Ardito, Edoardo De Toma, Dominik Burghart, Vladislav Tigaev, Mikhail A. Belkin, Vincenzo Spagnolo

Subjects: “…quartz-enhanced photoacoustic spectroscopy…”
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Spider Silk-Improved Quartz-Enhanced Conductance Spectroscopy for Medical Mask Humidity Sensing by Leqing Lin, Yu Zhong, Haoyang Lin, Chenglong Wang, Zhifei Yang, Qian Wu, Di Zhang, Wenguo Zhu, Yongchun Zhong, Yuwei Pan, Jianhui Yu, Huadan Zheng

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Quartz-Enhanced Photoacoustic Detection of Ethane in the Near-IR Exploiting a Highly Performant Spectrophone by Fabrizio Sgobba, Giansergio Menduni, Stefano Dello Russo, Angelo Sampaolo, Pietro Patimisco, Marilena Giglio, Ezio Ranieri, Vittorio M. N. Passaro, Frank K. Tittel, Vincenzo Spagnolo

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Acoustic Detection Module Design of a Quartz-Enhanced Photoacoustic Sensor by Tingting Wei, Hongpeng Wu, Lei Dong, Frank K. Tittel

Subjects: “…quartz-enhanced photoacoustic spectroscopy…”
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Fiber-Coupled Quartz-Enhanced Photoacoustic Spectroscopy System for Methane and Ethane Monitoring in the Near-Infrared Spectral Range by Giansergio Menduni, Fabrizio Sgobba, Stefano Dello Russo, Ada Cristina Ranieri, Angelo Sampaolo, Pietro Patimisco, Marilena Giglio, Vittorio M.N. Passaro, Sebastian Csutak, Dario Assante, Ezio Ranieri, Eric Geoffrion, Vincenzo Spagnolo

Subjects: “…quartz enhanced photoacoustic spectroscopy…”
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A high sensitive methane QEPAS sensor based on self-designed trapezoidal-head quartz tuning fork and high power diode laser by Hanxu Ma, Yanjun Chen, Shunda Qiao, Ying He, Yufei Ma

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Environmental Monitoring of Methane with Quartz-Enhanced Photoacoustic Spectroscopy Exploiting an Electronic Hygrometer to Compensate the H₂O Influence on the Sensor Sig... by Arianna Elefante, Giansergio Menduni, Hubert Rossmadl, Verena Mackowiak, Marilena Giglio, Angelo Sampaolo, Pietro Patimisco, Vittorio M. N. Passaro, Vincenzo Spagnolo

Subjects: “…quartz-enhanced photoacoustic spectroscopy…”
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A Deep Learning Approach to Investigating Clandestine Laboratories Using a GC-QEPAS Sensor by Giorgio Felizzato, Nicola Liberatore, Sandro Mengali, Roberto Viola, Vittorio Moriggia, Francesco Saverio Romolo

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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 by Lihao Wang, Haohua Lv, Yaohong Zhao, Chenglong Wang, Huijian Luo, Haoyang Lin, Jiabao Xie, Wenguo Zhu, Yongchun Zhong, Bin Liu, Jianhui Yu, Huadan Zheng

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H2S quartz-enhanced photoacoustic spectroscopy sensor employing a liquid-nitrogen-cooled THz quantum cascade laser operating in pulsed mode by Angelo Sampaolo, Chenren Yu, Tingting Wei, Andrea Zifarelli, Marilena Giglio, Pietro Patimisco, Huan Zhu, Haiqing Zhu, Li He, Hongpeng Wu, Lei Dong, Gangyi Xu, Vincenzo Spagnolo

Subjects: “…Quartz enhanced photoacoustic spectroscopy…”
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Continuous real-time monitoring of carbon dioxide emitted from human skin by quartz-enhanced photoacoustic spectroscopy by Yixin Zhang, Yi Xie, Juncheng Lu, Jiasheng Zhao, Yuhua Wu, Jinlin Tong, Jie Shao

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Low-Loss Hollow Waveguide Fibers for Mid-Infrared Quantum Cascade Laser Sensing Applications by James A. Harrington, Carlos M. Bledt, Gaetano Scamarcio, Vincenzo Spagnolo, Miriam S. Vitiello, Pietro Patimisco

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Improved T-shaped quartz tuning fork with isosceles-trapezoidal grooves optimized for quartz-enhanced photoacoustic spectroscopy by Feihu Fang, Runqiu Wang, Dongfang Shao, Yi Wang, Yilü Tao, Shengshou Lin, Yufei Ma, Jinxing Liang

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Ppb-level NH3 photoacoustic sensor combining a hammer-shaped tuning fork and a 9.55µm quantum cascade laser by Shangzhi Li, Yupeng Yuan, Zhijin Shang, Xukun Yin, Angelo Sampaolo, Pietro Patimisco, Vincenzo Spagnolo, Lei Dong, Hongpeng Wu

Subjects: “…Quartz enhanced photoacoustic spectroscopy…”
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Optomechanical energy enhanced BF-QEPAS for fast and sensitive gas sensing by Weilin Ye, Linfeng He, Weihao Liu, Zhile Yuan, Kaiyuan Zheng, Guolin Li

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Influence of Tuning Fork Resonance Properties on Quartz-Enhanced Photoacoustic Spectroscopy Performance by Huadan Zheng, Haoyang Lin, Lei Dong, Yihua Liu, Pietro Patimisco, John Zweck, Ali Mozumder, Angelo Sampaolo, Vincenzo Spagnolo, Bincheng Huang, Jieyuan Tang, Linpeng Dong, Wenguo Zhu, Jianhui Yu, Zhe Chen, Frank K. Tittel

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A High Sensitivity Preamplifier for Quartz Tuning Forks in QEPAS (Quartz Enhanced PhotoAcoustic Spectroscopy) Applications by Tomasz Starecki, Piotr Z. Wieczorek

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Compact and Versatile QEPAS-Based Sensor Box for Simultaneous Detection of Methane and Infrared Absorber Gas Molecules in Ambient Air by Andrea Zifarelli, Giansergio Menduni, Marilena Giglio, Arianna Elefante, Anton Sukhinets, Anton Sukhinets, Angelo Sampaolo, Angelo Sampaolo, Pietro Patimisco, Pietro Patimisco, Sun Fangyuan, Wang Chongwu, Qi Jie Wang, Qi Jie Wang, Vincenzo Spagnolo, Vincenzo Spagnolo

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