Stand-off identification of aerosols using mid-infrared backscattering fourier-transform spectroscopy

Luke Maidment, Zhaowei Zhang, Christopher R Howle, Derryck Telford Reid

Research output: Contribution to journalArticle

19 Citations (Scopus)
52 Downloads (Pure)

Abstract

We show that it is possible to identify the chemical composition of an aerosol by using Fourier-transform spectroscopy of backscattered mid-infrared light at a range of 0.2 m. An ultrafast mid-infrared optical parametric oscillator provides the illumination source for the measurement across a wavelength range from 3.2-3.55 μm containing characteristic optical absorption features for two different chemicals. Normalized detection sensitivity below 10 ppm m-1 Hz-12 is obtained.

Original languageEnglish
Pages (from-to)2266-2269
Number of pages4
JournalOptics Letters
Volume41
Issue number10
Early online date10 May 2016
DOIs
Publication statusPublished - 15 May 2016

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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