Abstract

We demonstrate time-resolved simultaneous measurements of multiple hydrocarbons in high-temperature reacting and non-reacting mixtures using a broadband (instantaneous bandwidth 2.80–3.57 µm) subharmonic mid-infrared optical parametric oscillator based on orientation-patterned gallium phosphide. High-temperature absorption spectra and concentration time-histories of methane, ethane, and ethylene are measured at pressures around 2.3–2.7 atm and temperatures around 1235–1277 K in shock tube experiments.

© 2020 Optical Society of America

Acousto-optically modulated quantum cascade laser for high-temperature reacting systems thermometry

Zachary E. Loparo, Erik Ninnemann, Kyle Thurmond, Andrew Laich, Ahmad Azim, Arkadiy Lyakh, and Subith S. Vasu
Opt. Lett. 44(6) 1435-1438 (2019)

High energy mid-infrared laser pulse output from a BaGa₄Se₇ crystal-based optical parametric oscillator

Yongchang Zhang, Yue Zuo, Zhuang Li, Bo Wu, Jiyong Yao, and Yonghang Shen
Opt. Lett. 45(16) 4595-4598 (2020)

High power, twin-band mid-infrared PPMgLN optical parametric oscillator pumped at 1.679 µm

Yuefeng Peng, Jianing Zhang, and Yong Wang
Opt. Lett. 45(5) 1281-1284 (2020)

Ultrafast laser-absorption spectroscopy for single-shot, mid-infrared measurements of temperature, CO, and CH₄ in flames

Ryan J. Tancin, Ziqiao Chang, Mingming Gu, Vishnu Radhakrishna, Robert P. Lucht, and Christopher S. Goldenstein
Opt. Lett. 45(2) 583-586 (2020)

Generation of a mid-infrared femtosecond vortex beam from an optical parametric oscillator

Hui Tong, Guoqiang Xie, Zhen Qiao, Zhipeng Qin, Peng Yuan, Jingui Ma, and Liejia Qian
Opt. Lett. 45(4) 989-992 (2020)