Development and measurement of a near-infrared CH4 detection system using 1.654 μm wavelength-modulated diode laser and open reflective gas sensing probe
A near-infrared (NIR) methane (CH 4) detection system based on tunable diode laser
absorption spectroscopy (TDLAS) was experimentally demonstrated, which adopts a …
absorption spectroscopy (TDLAS) was experimentally demonstrated, which adopts a …
A ppb level sensitive sensor for atmospheric methane detection
J Xia, F Zhu, S Zhang, A Kolomenskii… - Infrared Physics & …, 2017 - Elsevier
A high sensitivity sensor, combining a multipass cell and wavelength modulation
spectroscopy in the near infrared spectral region was designed and implemented for trace …
spectroscopy in the near infrared spectral region was designed and implemented for trace …
Event-based bispectral photometry using temporally modulated illumination
T Takatani, Y Ito, A Ebisu, Y Zheng… - Proceedings of the …, 2021 - openaccess.thecvf.com
Abstract Analysis of bispectral difference plays a critical role in various applications that
involve rays propagating in a light absorbing medium. In general, the bispectral difference is …
involve rays propagating in a light absorbing medium. In general, the bispectral difference is …
Self-assembly of a nano hydrogel colloidal array for the sensing of humidity
Z Wang, M Xue, H Zhang, Z Meng, KJ Shea, L Qiu… - RSC …, 2018 - pubs.rsc.org
Traditional artificial opals are assembled from silica or polystylene colloidals which have
poor swellability and a lower response to stimuli. A novel three-dimensional photonic crystal …
poor swellability and a lower response to stimuli. A novel three-dimensional photonic crystal …
Wavelength-scanned all-fiber cavity ring-down gas sensing using an L-band active fiber loop
We report an all-fiber wavelength-scanned cavity ring-down technique using an L-band
active fiber loop. A software-based wavelength scanning scheme is developed to …
active fiber loop. A software-based wavelength scanning scheme is developed to …
Development of a near-infrared tunable diode laser absorption spectrometer for trace moisture measurements in helium gas
S Pal, A Das, S Nandy, R Kar, J Ghosh - Review of Scientific …, 2019 - pubs.aip.org
There is a demand for water vapor or moisture measurement in gas mixture at trace level
from industries like combustion studies, semiconductor industry, environmental studies …
from industries like combustion studies, semiconductor industry, environmental studies …
[PDF][PDF] 功率增强型光声光谱气体传感技术的研究进展
王强， 许可， 姚晨雨， 王震， 常军， 任伟 - Chinese Journal of …, 2018 - researching.cn
摘要光声光谱(PAS) 技术是痕量气体传感领域内十分重要的探测技术, 科研人员正致力于提升光
声光谱气体传感技术的性能, 以满足不同的应用需求, 其中通过增强激发光功率来提升探测 …
声光谱气体传感技术的性能, 以满足不同的应用需求, 其中通过增强激发光功率来提升探测 …
Recovery of pure wavelength modulation second harmonic signal waveforms in distributed feedback diode laser-based photoacoustic spectroscopy
Application of second harmonic signal waveforms in distributed feedback diode laser (DFB
DL)-based wavelength modulation (WM) spectroscopy is limited by the waveform distortions …
DL)-based wavelength modulation (WM) spectroscopy is limited by the waveform distortions …
Modulation index adjustment for recovery of pure wavelength modulation spectroscopy second harmonic signal waveforms
A new technique of modulation index adjustment for pure wavelength modulation
spectroscopy second harmonic signal waveforms recovery is presented. As the modulation …
spectroscopy second harmonic signal waveforms recovery is presented. As the modulation …
A trace gas sensor using near infrared distributed feedback laser at 1654 nm
B Li, QX He, HF Liu, YD Wang - Laser physics, 2015 - iopscience.iop.org
A cost-effective compact instrument for high-stable and sensitive detection of methane (CH
4) based on the tunable diode laser absorption spectroscopy technique was experimentally …
4) based on the tunable diode laser absorption spectroscopy technique was experimentally …