Jerald A Caton

Address:

1016 Rose Cir, College Station, TX 77840

VIN:

1G8ZV57757F180831

Make:

SATURN

Model:

AURA

Year:

2007

US Patent:

H002197, Aug 7, 2007

Filed:

Dec 22, 2004

Appl. No.:

11/025827

Inventors:

James R. Gord - Dayton OH, US
Robert P. Lucht - West Lafayette IN, US
Thomas N. Anderson - West Lafayette IN, US
Thomas Walther - Darmstadt, DE
Sukesh Roy - Dayton OH, US
Michael S. Brown - Dayton OH, US
Jerald A. Caton - College Station TX, US

Assignee:

The United States of America as represented by the Secretary of the Air Force - Washington DC

International Classification:

G01J 5/02

US Classification:

250343

Abstract:

An all-solid-state continuous-wave (cw) laser system for measurements of the absorption by the CO molecule of mid-infrared radiation in the 4. 3-4. 6 μm range is described, wherein a single-mode, tunable output of a 70 mW, 860-nm ECDL is difference frequency mixed with the output of a 550 mW diode-pumped cw Nd:YAG laser in a PPLN crystal to produce approximately 1 μW of tunable cw radiation at 4. 5 μm.

US Patent:

6982426, Jan 3, 2006

Filed:

Aug 6, 2004

Appl. No.:

10/914782

Inventors:

Robert P. Lucht - West Lafayette IN, US
Thomas N. Anderson - West Lafayette IN, US
Sherif F. Hanna - College Station TX, US
Thomas Walther - Darmstadt, DE
Sukesh Roy - Dayton OH, US
Michael S. Brown - Dayton OH, US
James R. Gord - Dayton OH, US
Jerald A. Caton - College Station TX, US

Assignee:

The United States of America as represented by the Secretary of the Air Force - Washington DC

International Classification:

G01J 1/42

US Classification:

250373

Abstract:

A nitric oxide sensor and method is disclosed. The sensor is based on sum-frequency mixing of a tunable, 395-nm external cavity diode laser with a 532-nm diode-pumped intracavity-frequency-doubled Nd:YAG laser in a beta-barium-borate crystal. The output from the BBO crystal is ultraviolet radiation at 227 nm and is split using a 50—50 beam splitter. Half of the radiation is directed into a reference photomultiplier tube, and the other half of the UV radiation is directed through the medium of interest and then directed into a signal photomultiplier tube. The output from the photomultiplier tubes is compared and the difference utilized to indicate the level of nitric oxide by absorption-based spectrosocpic techniques.