Tube-cantilever double resonance enhanced fiber-optic photoacoustic spectrometer

Chen, Ke; Deng, Hong; Guo, Min; Luo, Chen; Liu, Shuai; Zhang, Bo; Ma, Fengxiang; Zhu, Feng; Gong, Zhenfeng; Peng, Wei; Yu, Qingxu

doi:10.1016/j.optlastec.2019.105894

Cited by 48 publications

(25 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hydrogel Sulfide (H 2 S) QCL [136] CO 2 Laser [130] LD [137][138][139] Water (H 2 O) QCL [125,140] LD [133,134,141] LED [142] Acetylene (C 2 H 2 ) CO 2 Laser [143] LD [87,144,145] Methane (CH 4 ) QCL [146][147][148] LD [87,133,146,149] OPO [150] Ozone (O 3 ) QCL [151] quadrupled Nd:YAG [152] Hydrogen Chloride (HCl) LD [149,153] Ethylene (C 2 H 4 ) CO 2 Laser [98] 3.2.3. Quartz-Enhanced and Cantilever Photoacoustic Absorption Spectroscopy Low-cost reliable MEMS devices often allow for advances in miniaturization and improvement of performances in originally unforeseen applications.…”

Section: Target Gas (Es) Light Source Referencementioning

confidence: 99%

Photoacoustic-Based Gas Sensing: A Review

Palzer

2020

Sensors

102

View full text Add to dashboard Cite

The use of the photoacoustic effect to gauge the concentration of gases is an attractive alternative in the realm of optical detection methods. Even though the effect has been applied for gas sensing for almost a century, its potential for ultra-sensitive and miniaturized devices is still not fully explored. This review article revisits two fundamentally different setups commonly used to build photoacoustic-based gas sensors and presents some distinguished results in terms of sensitivity, ultra-low detection limits, and miniaturization. The review contrasts the two setups in terms of the respective possibilities to tune the selectivity, sensitivity, and potential for miniaturization.

show abstract

Section: Target Gas (Es) Light Source Referencementioning

confidence: 99%

Photoacoustic-Based Gas Sensing: A Review

Palzer

2020

Sensors

102

View full text Add to dashboard Cite

show abstract

“…Photoacoustic (PA) spectroscopy (PAS) has been one of the most versatile methods for trace gas analysis because of high sensitivity and selectivity [ 6 , 8 , [17] , [18] , [19] , [20] , [21] , [22] , [23] , [24] , [25] ]. In recent years, a lot of efforts have been made to optimize the PA systems by the researchers.…”

Section: Introductionmentioning

confidence: 99%

Ppb-level detection of methane based on an optimized T-type photoacoustic cell and a NIR diode laser

et al. 2021

Self Cite

View full text Add to dashboard Cite

This paper presents an optimized T-type resonant photoacoustic (PA) cell for methane (CH 4 ) gas detection. The noise transmission coefficients and PA field distributions of the T-type resonant PA cell have been evaluated using the finite element method and thermoviscous acoustic theory. The optimized T-type resonant PA cell, together with a near-infrared (NIR) distributed feedback (DFB) laser source, a high-speed spectrometer and a fiber-optic acoustic sensor constitutes a PAS system for CH 4 detection. The sensitivity is measured to be 1.8 pm/ppm and a minimum detectable limit (MDL) of 9 parts per billion (ppb) can be achieved with an averaging time of 500 s. The optimized T-type longitudinal resonant PA cell features of high PA cell constant, fast response time and simple manufacturing process.

show abstract

“…Although the maturity of crystal fiber, holey fiber and waveguide technology promoted the development of fiber-based QEPAS sensing technique in the past few years, facing with the application technology's demand for different practical gas detection, the research right now are not mature enough. Its future development direction can refer to the following aspects: (1) Find more suitable mid-infrared fiber materials, and expand the current application restrictions that fluoride and sulfide fibers can only be used for laser wavelengths below 5 μm; (2) Use more advanced technology to produce fibers with better structure and size to improve the excitation intensity in fiber-based QEPAS sensors; (3) Combine with other high sensitive technologies such as photothermal spectroscopy [77][78][79][80] to realize distributed gas measurement with higher spatial resolution.…”

Section: Discussionmentioning

confidence: 99%

Advances in fiber‐based quartz enhanced photoacoustic spectroscopy for trace gas sensing

Feng

Gao

et al. 2021

Micro & Optical Tech Letters

View full text Add to dashboard Cite

Fiber-based quartz enhanced photoacoustic spectroscopy (QEPAS) is a method for trace gas sensing with excellent properties such as high sensitivity and strong applicability. It has received extensive attention and become particularly attractive in recent years. Therefore, this invited paper analyzed and summarized the principle of its sensing as well as its technical characteristics. The latest research results, combed with the application mechanism and application fields of different types of QEPAS system, were introduced. Finally, its development trend was forecasted.

show abstract

Tube-cantilever double resonance enhanced fiber-optic photoacoustic spectrometer

Cited by 48 publications

References 34 publications

Photoacoustic-Based Gas Sensing: A Review

Photoacoustic-Based Gas Sensing: A Review

Ppb-level detection of methane based on an optimized T-type photoacoustic cell and a NIR diode laser

Advances in fiber‐based quartz enhanced photoacoustic spectroscopy for trace gas sensing

Contact Info

Product

Resources

About