| 单激光源谐波遥感探测甲烷研究 |
| |
| 引用本文： | 尹王保,赵建明,马维光,李昌勇,肖连团,贾锁堂.单激光源谐波遥感探测甲烷研究[J].中国激光,2003,30(10):928-932. |
| |
| 作者姓名： | 尹王保 赵建明 马维光 李昌勇 肖连团 贾锁堂 |
| |
| 作者单位： | 山西大学物理电子工程学院,量子光学与光量子器件国家重点实验室,山西,太原,030006 |
| |
| 基金项目： | 山西省科技攻关项目 (0 0 2 0 96 )，山西省留学基金 (2 0 0 1.10～ 2 0 0 3.12 )资助项目 |
| |
| 摘 要： | 提出了一种利用单一可调谐外腔二极管激光 (ECDL)及谐波探测技术对甲烷进行现场、实时遥感探测方案。通过理论推导计算出该方案在甲烷 2ν3 吸收带的R6支吸收线上理论最小可探测路径 积分浓度为 87× 10 -9。根据该方案建立了实验系统 ,实验结果验证了该方案的可行性并估算出实验最小可探测甲烷的路径 积分浓度为 4 2 0× 10 -9。
|
| 关 键 词： | 激光技术 遥感检测 谐波探测 频率调制光谱 甲烷 外腔式二极管激光 |
| 收稿时间： | 2002/6/7 |
Research on the Remote Sensing of Methane with Harmonic Detection Employing Single Laser |
| |
| YIN Wang-bao,ZHAO Jian-ming,MA Wei-guang,LI Chang-yong,XIAO Lian-tuan,JIA Suo-tang.Research on the Remote Sensing of Methane with Harmonic Detection Employing Single Laser[J].Chinese Journal of Lasers,2003,30(10):928-932. |
| |
| Authors: | YIN Wang-bao ZHAO Jian-ming MA Wei-guang LI Chang-yong XIAO Lian-tuan JIA Suo-tang |
| |
| Abstract: | This article describes the design and testing of a laboratory prototype single diode laser system for remote detection of methane gas using harmonic detection. Harmonic signals are contained within radiation backscatter from topographic targets. A function of detected gas concentration depends on these harmonic signals is given by theoretical derivation. Base on it, minimum theoretical detection limit for methane is calculated to be about 87×10 -9 and the minimum measurable path-integrated concentration is estimated to be about 420×10 -9 by experimentation with real situation in laboratory at 2ν 3-band R(6) line of methane. |
| |
| Keywords: | laser technique remote sensing harmonic detection frequency-modulation spectroscopy methane exterior cavity diode laser (ECDL) |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
