Dispersed fourier transform spectrometer

Details Dispersed fourier transform spectrometer Dispersed fourier transform spectrometer

2007-04-17

2007-04-17

Lee, Hwa (Andrew) (Department: 2877)

Optics: measuring and testing

By light interference

Spectroscopy

Reexamination Certificate

active

10750633

ABSTRACT:
A dispersing Fourier Transform interferometer (DFTS) includes a Fourier Transform Spectrometer having an input for receiving a source light and an output, and a dispersive element having an input coupled to the Fourier Transform Spectrometer output and an output for providing the resulting multiple narrowband interferogram outputs of different wavelengths representative of the source light input. A processor applies a sparse sampling algorithm for determining the best fit between a set of model interferograms and the set of data interferograms. The model interferogram is inferred as specified at a discrete set of lags, a difference is determined between the model interferogram and the data interferogram, and an optimization method determines the model interferogram best matched to the data interferogram. The DFTS interferometer improves the sensitivity of a standard FTS by including a dispersive element, increasing the SNR by a factor of (Rg)1/2as compared to the FTS, where Rgis the resolving power of the conventional dispersing spectrometer (i.e. Rg=λ/Δλ).

REFERENCES:
patent: 6351307 (2002-02-01), Erskine
patent: 2317446 (1998-03-01), None

Affiliated with

Also associated with

Rating

Dispersed fourier transform spectrometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dispersed fourier transform spectrometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dispersed fourier transform spectrometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3728742