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In this Letter, clamp-type quartz tuning fork enhanced photoacoustic spectroscopy (Clamp-type QEPAS) is proposed and realized through the design, realization, and testing of clamp-type quartz tuning forks (QTFs) for photoacoustic gas sensing. The clamp-type QTF provides a wavefront-shaped aperture with a diameter up to 1 mm, while keeping Q factors > 104. This novel, to the best of our knowledge, design results in a more than ten times increase in the area available for laser beam focusing for the QEPAS technique with respect to a standard QTF. The wavefront-shaped clamp-type prongs effectively improve the acoustic wave coupling efficiency. The possibility to implement a micro-resonator system for clamp-type QTF is also investigated. A signal-to-noise enhancement of ∼30 times has been obtained with a single-tube acoustic micro resonator length of 8 mm, ∼20% shorter than the dual-tube micro-resonator employed in a conventional QEPAS system.
Qian Wu, and
Haohua Lv, and
Leqing Lin, and
Hongpeng Wu, and
Marilena Giglio, and
Wenguo Zhu, and
Yongchun Zhong, and
Angelo Sampaolo, and
Pietro Patimisco, and
Lei Dong, and
Vincenzo Spagnolo, and
Jianhui Yu, and
Huadan Zheng
May 2019,
Optics letters,
Qian Wu, and
Haohua Lv, and
Leqing Lin, and
Hongpeng Wu, and
Marilena Giglio, and
Wenguo Zhu, and
Yongchun Zhong, and
Angelo Sampaolo, and
Pietro Patimisco, and
Lei Dong, and
Vincenzo Spagnolo, and
Jianhui Yu, and
Huadan Zheng
March 2016,
Sensors (Basel, Switzerland),
Qian Wu, and
Haohua Lv, and
Leqing Lin, and
Hongpeng Wu, and
Marilena Giglio, and
Wenguo Zhu, and
Yongchun Zhong, and
Angelo Sampaolo, and
Pietro Patimisco, and
Lei Dong, and
Vincenzo Spagnolo, and
Jianhui Yu, and
Huadan Zheng
March 2019,
Sensors (Basel, Switzerland),
Qian Wu, and
Haohua Lv, and
Leqing Lin, and
Hongpeng Wu, and
Marilena Giglio, and
Wenguo Zhu, and
Yongchun Zhong, and
Angelo Sampaolo, and
Pietro Patimisco, and
Lei Dong, and
Vincenzo Spagnolo, and
Jianhui Yu, and
Huadan Zheng
June 2018,
Sensors (Basel, Switzerland),
Qian Wu, and
Haohua Lv, and
Leqing Lin, and
Hongpeng Wu, and
Marilena Giglio, and
Wenguo Zhu, and
Yongchun Zhong, and
Angelo Sampaolo, and
Pietro Patimisco, and
Lei Dong, and
Vincenzo Spagnolo, and
Jianhui Yu, and
Huadan Zheng
September 2019,
Sensors (Basel, Switzerland),
Qian Wu, and
Haohua Lv, and
Leqing Lin, and
Hongpeng Wu, and
Marilena Giglio, and
Wenguo Zhu, and
Yongchun Zhong, and
Angelo Sampaolo, and
Pietro Patimisco, and
Lei Dong, and
Vincenzo Spagnolo, and
Jianhui Yu, and
Huadan Zheng
July 2025,
Analytical chemistry,
Qian Wu, and
Haohua Lv, and
Leqing Lin, and
Hongpeng Wu, and
Marilena Giglio, and
Wenguo Zhu, and
Yongchun Zhong, and
Angelo Sampaolo, and
Pietro Patimisco, and
Lei Dong, and
Vincenzo Spagnolo, and
Jianhui Yu, and
Huadan Zheng
November 2019,
Sensors (Basel, Switzerland),
Qian Wu, and
Haohua Lv, and
Leqing Lin, and
Hongpeng Wu, and
Marilena Giglio, and
Wenguo Zhu, and
Yongchun Zhong, and
Angelo Sampaolo, and
Pietro Patimisco, and
Lei Dong, and
Vincenzo Spagnolo, and
Jianhui Yu, and
Huadan Zheng
September 2013,
Optics express,
Qian Wu, and
Haohua Lv, and
Leqing Lin, and
Hongpeng Wu, and
Marilena Giglio, and
Wenguo Zhu, and
Yongchun Zhong, and
Angelo Sampaolo, and
Pietro Patimisco, and
Lei Dong, and
Vincenzo Spagnolo, and
Jianhui Yu, and
Huadan Zheng
December 2019,
Sensors (Basel, Switzerland),
Qian Wu, and
Haohua Lv, and
Leqing Lin, and
Hongpeng Wu, and
Marilena Giglio, and
Wenguo Zhu, and
Yongchun Zhong, and
Angelo Sampaolo, and
Pietro Patimisco, and
Lei Dong, and
Vincenzo Spagnolo, and
Jianhui Yu, and
Huadan Zheng
February 2020,
Optics express,
