Paper 14040-23
Paper 14040-23
VNIR-SWIR hyperspectral lidar for stand-off characterization of gases and aerosols
29 April 2026 • 10:40 AM - 11:00 AM EDT | Chesapeake 5
Abstract
A single-detector hyperspectral lidar covering the VNIR-SWIR spectral bands was built and used to retrieve the spectral extinction efficiency and the backscattering-to-extinction ratio on a mineral oil aerosol cloud. The system probes 105 wavelengths from 420 nm to 2500 nm by steps of 20 nm. The 1750 nm to 2050 nm water vapour absorption band is probed by steps of 1 nm to estimate the system’s tuning precision and to assess the impact of atmospheric absorption on the system performances.
Presenter
Grégoire Tremblay
Defence Research and Development Canada, Valcartier (Canada)
Grégoire Tremblay received its PhD from Laval University in 1999 for his work in astronomical instrumentation. He worked for four years at EXFO as an optical designer. Afterward, he worked for 15 years as a physicist at Aerex Avionics. He now works at Defence Research and Development Canada, Valcartier research centre, where his main interests are lidars, aerosol scattering and atmospheric propagation.