Patent ID: 7939805
Filing Date: 2011-05-10
Classification: G01J

Abstract:
1. A spectrometer for analyzing specimens in the infrared region comprising: a broadband infrared source that emits broadband infrared radiation; a coupler optically connected to said broadband infrared source for splitting broadband infrared radiation from said source; a first optical path formed by a chalcogenide fiber capable of transmitting broadband infrared radiation optically connected to said coupler; a first reflector operably associated with said first optical path for reflecting broadband infrared radiation back to said coupler via said first optical path; a stretcher operably associated with the chalcogenide fiber forming said first optical path for stretching the length of said chalocgenide fiber; a second optical path formed by a chalcogenide fiber capable of transmitting broadband infrared radiation optically connected to said coupler; a sample positioned such that broadband infrared radiation traveling along said second optical path impinges upon said sample; a second reflector operably associated with said second optical path for reflecting broadband infrared radiation back to said coupler via said second optical path; a detector optically connected to said coupler for detection of broadband infrared radiation from said coupler; and a FFT spectrum analyzer connected to said detector for analyzing an interoferogram output of said detector.