Adler-Golden S M, Goldstein N, Bien F, Matthew M W, Gersh M E, Cheng W K, Adams F W
Appl Opt. 1992 Feb 20;31(6):831-5. doi: 10.1364/AO.31.000831.
A new optical hydrogen sensor based on spontaneous Raman scattering of laser light has been designed and constructed for rugged field use. It provides good sensitivity (better than 100 parts in 10(6)), rapid response (several seconds), and the inherent Raman characteristics of linearity and background gas independence of the signal. Efficient light collection and discrimination by using fast optics and a bandpass interference filter compensate for the inefficiency of the Raman-scattering process. A multipass optical cavity with a Herriott-type configuration provides intense illumination from an air-cooled cw gas laser. The observed performance is in good agreement with the theoretical signal and noise level predictions.
一种基于激光自发拉曼散射的新型光学氢传感器已被设计并制造出来，用于恶劣的野外环境。它具有良好的灵敏度（优于百万分之100）、快速响应（几秒），以及信号的线性和与背景气体无关的固有拉曼特性。通过使用快速光学器件和带通干涉滤光片进行高效的光收集和鉴别，弥补了拉曼散射过程的低效率。具有赫里奥特型结构的多程光学腔可提供来自风冷连续波气体激光器的强照明。观测到的性能与理论信号和噪声水平预测结果吻合良好。
