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Compensated MEMS FTIR Spectrometer Architecture

6 years 6 months ago

Description

A Micro Electro-Mechanical System (MEMS) spectrometer architecture compensates for verticality and dispersion problems using balancing interfaces. A MEMS spectrometer/interferometer includes a beam splitter formed on a first surface of a first medium at an interface between the first medium and a second medium, a first mirror formed on a second surface of the first medium, a second mirror formed on a third surface of the first medium and balancing interfaces designed to minimize both a difference in tilt angles between the surfaces and a difference in phase errors between beams reflected from the first and second mirrors.

Aspects

The present invention relates in general to optical spectroscopy and interferometry, and in particular to the use of Micro Electro-Mechanical System (MEMS) technology in optical spectrometers. Embodiments of the present invention provide a Micro Electro-Mechanical System (MEMS) interferometer that uses balancing interfaces to overcome the verticality and dispersion problems. The MEMS interferometer includes a beam splitter formed on a first surface of a first medium at an interface between the first medium and a second medium, a first mirror formed on a second surface of the first medium, a second mirror formed on a third surface of the first medium and the balancing interfaces.

Patenting Status

Patent Granted

Status

Patented

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