Ultra-compact comb source with instantaneous bandwidth 3 - 10 µm for massively parallel spectroscopic sensing
Abstract
The main goal of this effort is to develop chip-scale frequency combs in the highly desirable yet difficult-to-achieve molecular fingerprint MWIR region and then extend it further to LWIR region thus achieving an unprecedented instantaneous coverage of almost two octaves (3-10 μm). The output of a compact (1cm size) mode-locked Cr:ZnS laser will be converted to a broadband phase-stabilized mid-IR output using a subharmonic (frequency-divide-by-two) optical parametric oscillator (OPO) based on periodically inverted GaAs with equally compact (~1cm size) resonant cavity. This framework will be used to demonstrate trace molecular detection in gas phase and at solid surface residues, with unprecedented speed, accuracy and sensitivity, and, most importantly, with the capability of detecting simultaneously trace amounts of multiple substances in cluttered atmosphere.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 20, 2016
- Source ID
- W31P4Q1510008
Entities
People
- Konstantin L. Vodopyanov
Organizations
- Army Contracting Command
- Defense Advanced Research Projects Agency
- University of Central Florida