Novel Concept of Frequency-Combs Interferometric Spectroscopy in the Mid-IR for Significantly Enhanced Detection of Explosives
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2015
- Accession Number
- AD1005065
Entities
People
- Konstantin L. Vodopyanov
Organizations
- University of Central Florida