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Tunable solid-state UV lidar system for NO monitoring

Conference ·
OSTI ID:492286
;  [1]; ;  [2]
  1. Tokyo Gas Co., Ltd., Mihama, Chiba (Japan). Information Technology Research Inst.
  2. Chiba Univ., Yayoi, Inage (Japan). Center for Environmental Remote Sensing

A differential absorption lidar (DIAL) system, based on a tunable solid-state Ti:sapphire laser, was developed for nitric oxide monitoring in the UV region. The UV light was generated through second-harmonic generation (SHG) of sum-frequency mixing (SFM) between a Ti:sapphire laser, pumped by the SH of a Nd:YAG laser, and the fundamental of a second Nd:YAG laser. The output pulse energy of 4 mJ at 226.8 nm with 2 pm linewidth was achieved. As a demonstration of DIAL capability, the spatial distribution of nitric oxide emission from a diesel engine was investigated. The detection error achieved was {+-}0.05 ppm up to a distance of 180 m, with the spatial resolution of 20 m.

OSTI ID:
492286
Report Number(s):
CONF-960848--; ISBN 0-8194-2221-5
Country of Publication:
United States
Language:
English

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