NASA 1996 SBIR Phase I


PROPOSAL NUMBER : 96-1 13.02-0501

PROJECT TITLE : Miniaturized Interferometer With No Moving Parts

TECHNICAL ABSTRACT (LIMIT 200 WORDS)

Current FT-IR spectrometers are based upon the original Michelson design containing a moving mirror, which was first proposed nearly 70 years ago. While spectometers based on this principle have been very useful, development of a new generation of spectrometers with no moving parts would bring major advances for numerous sensing applications. It could enable real-time measurement, reduced positional uncertainties, reduced spectrometer size, and extended wavelength range.

This Phase I project will experimentally test the feasibility of an entirely new type of FT-IR spectometer. The optical arrangement is designed to produce and detect interferograms in the spatial domain using passive components and a 2-dimensional detector array. Particularly promising features of this array interferometer include high light throughput, a full spectrum time response limited only by the detyector, and potential for miniaturization. In the proposed approach, on obtains an "interferometer on a wafer".

In Phase I, a laboratory-scale interferometer will be built by lithographic techniques and tested. The experimental effort will provide information on the apparatus function, resolving power, sensitivity and optical abberations. If the effort is successful, a complete spectrometer system will be developed and commercialized in Phases II and III.

POTENTIAL COMMERCIAL APPLICATIONS
An FT-IR spectrometer built from this design will be compact, rugged, and suitable for real-time analysis. Applications include remote sensing from satellites and space probes, target characterization, industrial process monitoring, environmental monitoring and laboratory analaysis
NAME AND ADDRESS OF PRINCIPAL INVESTIGATOR
K.D. Moeller,
Poulos Technical Services, Inc.,
7 Waterbury Ct., Allentown, NJ 08501
NAME AND ADDRESS OF OFFEROR
Poulos Technical Services, Inc.,
7 Waterbury Ct., Allentown, NJ 08501