Results 291 to 300 of about 227,483 (326)

Diode laser detection of transient CF3 radicals formed by CO2 laser multiphoton induced dissociation of halocarbons

Chemical Physics Letters, 1987
Abstract The time-resolved tunable diode laser detection of CF 3 radicals formed by infrared multiphoton dissociation of (CF 3 ) 2 CO is reported. Knowledge of the linestrength of the r R 16 (20) CF 3 absorption linc at 1264.739 cm −1 allows the calculation of a rate constant for recombination of CF 3 radicals following (CF 3 ) 2 CO photolysis.
C.E. Brown, J.J. Orlando, J. Reid, D.R. Smith   +3 more
openaire   +1 more source

Diode laser probes of vibrational excitation in CO2 caused by hot atoms from excimer laser photolysis

The Journal of Chemical Physics, 1984
Hot H atoms were produced by photolysis of H2S. The CO2 transition 0001→0002 caused by the hot atoms was studied with a very precise laser absorption probe. (AIP)
Jack O. Chu, Carol F. Wood, George W. Flynn, Ralph E. Weston   +3 more
openaire   +1 more source

Allan variance for optimal signal averaging—monitoring by diode–laser and CO2 laser photo-acoustic spectroscopy

Journal of Molecular Spectroscopy, 2009
Abstract The concept of the Allan variance has been utilized to test the detection abilities of two powerful experimental methods for trace gas monitoring: IR diode–laser and CO 2 laser photo-acoustic spectroscopy. The detection of stable molecules (OCS, allene, CH 3 OH), and unstable species (ozone, short-lived free radical CN and molecular ion ArD
Jan Skřínský, Radmila Janečková, Eva Grigorová, Michal Střižík, Pavel Kubát, Lenka Herecová, Václav Nevrlý, Zdeněk Zelinger, Svatopluk Civiš   +8 more
openaire   +1 more source

[Study on CO2 measurement using tunable multi-mode diode laser absorption spectroscopy].

Guang pu xue yu guang pu fen xi = Guang pu, 2015
Tunable diode laser absorption spectroscopy (TDLAS) technology is a kind of fast time response, large-range, continuous on-line monitoring gas detection technique. It is the mainstream technology of gas detection. In this paper the multimode laser diode was used as light source.
Guang-Zhen, Gao, Bao-Xue, Chen, Bo, Hu, Xiu-Hui, Long, Ai-Ping, Li, Rong, Li   +5 more
openaire   +1 more source

Tunable Diode Laser Absorption Spectroscopy Sensor for Calibration Free Humidity Measurements in Pure Methane and Low CO2 Natural Gas

Applied Spectroscopy, 2017
J. Nwaboh, Sonja Pratzler, O. Werhahn, V. Ebert   +3 more
semanticscholar   +1 more source

Temperature and CO Number Density Measurements in Shocked CO and CO2 via Tunable Diode Laser Absorption Spectroscopy

2018 Joint Thermophysics and Heat Transfer Conference, 2018
Megan E. Macdonald, A. Brandis, B. Cruden   +2 more
semanticscholar   +1 more source

Measurement of CO2 concentration at high-temperature based on tunable diode laser absorption spectroscopy

, 2017
Jiu-ying Chen, Chuanrong Li, Mei Zhou, Jianguo Liu, Ruifeng Kan, Zhenyu Xu   +5 more
semanticscholar   +1 more source

Resin Modified Glass Ionomer bonded to Caries affected dentin disinfected with Carbon dioxide laser, Diode lasers, Bee glue and Photosensitizing agents: An estimation of bond strength.

Photodiagnosis and Photodynamic Therapy, 2022
A. Al-Khureif, B. A. Mohamed, A. Khan
semanticscholar   +1 more source

Research on atmospheric CO2 remote sensing with open-path tunable diode laser absorption spectroscopy and comparison methods

, 2017
Fengxin Xin, Jinjia Guo, Jiayun Sun, Jie Li, Chaofang Zhao, Zhishen Liu   +5 more
semanticscholar   +1 more source

Simultaneous measurements of temperature and CO2 concentration employing diode laser absorption near 2.0 μm

Applied physics B, 2015
T. Cai, G. Gao, Minrui Wang, Guishi Wang, Y. Liu, Xiaoming Gao   +5 more
semanticscholar   +1 more source