Dual interferometer spectroscopic imaging system

Details Dual interferometer spectroscopic imaging system Dual interferometer spectroscopic imaging system

1992-07-06

1994-02-08

Warden, Robert J.

Optics: measuring and testing

For light transmission or absorption

356345, 356357, 356358, 356360, G01N 2100, G01B 1100

Patent

active

052852610

ABSTRACT:
To obtain spectra from the surface of a sample, a first of a pair of interferometers includes a broadband radiation source and modulates the radiation at a frequency which is inversely proportional to wavelength. The modulated radiation impinges on the surface of interest where it is absorbed. The absorption of radiation causes the surface of the sample to expand. This change in dimension is then detected by a second interferometer which employs a monochromatic radiation source to measure the instantaneous distance between the sample surface and the second interferometer. The detection system of the second interferometer can be an imaging device such as a video camera to obtain the spatial distribution of chemical composition of the sample surface.

REFERENCES:
patent: 4044257 (1977-08-01), Kreuzer
patent: 4581939 (1986-04-01), Takahashi
patent: 4710030 (1987-12-01), Tauc et al.
patent: 4750822 (1988-06-01), Rosencwaig et al.
patent: 4784494 (1988-11-01), Pawliszyn
patent: 4808828 (1989-02-01), Kitamori et al.
patent: 4874251 (1989-10-01), Thomas et al.
patent: 5060248 (1991-10-01), Dumoulin
patent: 5062715 (1991-11-01), Nakata et al.
patent: 5136172 (1992-08-01), Nakata et al.
patent: 5170217 (1992-12-01), Nishimoto et al.
Glen M. Robinson, Ph.D, David M. Perry, and Richard W. Peterson, "Optical Interferometry", Scientific American Jul. 1991, pp. 445-449.

Affiliated with

Also associated with

Rating

Dual interferometer spectroscopic imaging system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual interferometer spectroscopic imaging system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual interferometer spectroscopic imaging system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-701698