Accession Number:

AD1005065

Title:

Novel Concept of Frequency-Combs Interferometric Spectroscopy in the Mid-IR for Significantly Enhanced Detection of Explosives

Descriptive Note:

Technical Report,01 May 2014,30 Sep 2015

Corporate Author:

University of Central Florida Orlando United States

Personal Author(s):

Report Date:

2015-12-01

Pagination or Media Count:

6.0

Abstract:

Our work over the reporting period has resulted in the demonstration of high performance spectroscopic sensor based on mid-IR frequency combs. Ultrasensitive detection of methane, isotopic carbon dioxide, carbon monoxide, formaldehyde, acetylene, and ethylene was performed in the spectral range 2.5-5 microns using intracavity spectroscopy in broadband optical parametric oscillators OPOs. The OPOs were operated near degeneracy and synchronously pumped either by a mode-locked erbium 1560 nm or thulium 2050 nm fiber laser. A large instantaneous bandwidth of up to 1000 cm-1 allows for detection of several substances simultaneously.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE