Embedded Single-Fiber Gas Sensor with Dual Enhancement of Photoacoustic Excitation and Detection
Dalian University of Technology · Jiangnan University · +3 more institutions
Abstract
Single-fiber photoacoustic (PA) gas sensing probes have been proven to have the characteristics of miniaturization, telemetry, and high sensitivity in situ detection. However, cantilever beams and diaphragms create an air damping effect and have mechanical miniaturization limitations, which hinder further improvement of the acoustic sensitivity. The double enhancement of PA excitation and detection based on microcavity multiple light reflection and ultrasensitive acoustic detection is applied to miniature single-fiber PA gas sensors to improve gas detection sensitivity. To leverage the high sensitivity of silicon cantilever beams, the embedded single-fiber novel structure design with an enlarged inner cavity…
Citation impact
- FWCI
- 38.86
- Percentile
- 100%
- References
- 35
Authors
8- YXYufu Xu
Dalian University of Technology
- XZXinyu Zhao
Jiangnan University, Optoelectronica-2001 (Romania), Integrated Optoelectronics (Norway)
- CLChenxi Li
Jiangnan University, Optoelectronica-2001 (Romania), Integrated Optoelectronics (Norway)
- YZYajie Zhang
Dalian University of Technology
- MGMin Guo
Shaoxing University
Topics & keywords
- Cantilever
- Sensitivity (control systems)
- Miniaturization
- Photoacoustic effect
- Optical fiber
- Silicon
- Demodulation
- Excitation
- Affordable and clean energy