MINIATURE FOURIER TRANSFORM SPECTROPHOTOMETER

Title:

MINIATURE FOURIER TRANSFORM SPECTROPHOTOMETER

Document Type and Number:

WIPO Patent Application WO2006086034

Kind Code:

A3

Abstract:

The Miniature Fourier Transform Spectrophotometer provides the capability, in a miniaturized device, of determining the light absorption/transmission spectra of a collected sample of gas or liquid though Fourier Transform spectroscopy techniques. The device takes an optical input from an optical fiber, manipulates that light through miniature optical components, and launches it into a miniaturized Michelson interferometer with a scanning mirror that acquires the interferogram of the optical input. The interferogram can be processed to retrieve the spectrum of the input light. A novel multi-stepped micro-mirror operates as the optical path length modulator in the miniaturized interferometer. A unique monolithic beamsplitter/mirror combination provides for accurate alignment of the components and greatly simplifies product integration. The device is designed to cover various optical spectra of interest. During operation, the precision and accuracy of the microfabricated components in the device allow operation and resolution even at extremely low wavelengths. In addition, the miniaturized nature of the device allows it to be used in new and extremely space-constrained applications.

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Inventors:

KRANZ MICHAEL S (US)
HEATON LARRY CHRISTOPHER (US)
LONG CALVIN WAYNE (US)

Application Number:

PCT/US2005/041938

Publication Date:

December 28, 2006

Filing Date:

November 18, 2005

Export Citation:

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Assignee:

MORGAN RES CORP (US)
KRANZ MICHAEL S (US)
HEATON LARRY CHRISTOPHER (US)
LONG CALVIN WAYNE (US)

International Classes:

G01B9/02

Foreign References:

US4523846A	1985-06-18
US4309109A	1982-01-05

Other References: