Trace gas sensor based on a novel room temperature mid-infrared laser source

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: NASA1475
Amount: $70,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2001
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
11805 North Creek Parkway S. Suite 113, Bothell, WA, 98011
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Angus Henderson
 Senior Scientist
 (425) 482-1100
Business Contact
 Charles Miyake
Title: Vice-president
Phone: (425) 482-1100
Research Institution
We propose here to develop a practical multi-species sensor for atmospheric gas concentrations and fluxes. The sensor will be based upon Tunable Diode Laser Absorption Spectroscopy (TDLAS), which is a highly sensitive and selective measurement technique. The practicality of this technique has up to now been limited by the use of cryogenically cooled diode lasers. In this work, a compact room temperature sensor will be enabled by a novel mid-infrared laser source developed by Aculight. The source is based upon direct nonlinear frequency conversion of near-infrared diode lasers, by an optical parametric oscillator (OPO). In phase I, we propose to demonstrate the multi-species sensor capability of the device by measurement of methane isotope ratios and formaldehyde concentrations. Potential detection sensitivities for relevant species within the 1 to 4um tuning range of the OPO will be analyzed. In phase II we will upgrade the power level, frequency control and device engineering to provide a deliverable source compatible with ultra-sensitive automated monitoring of multiple species.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government