Apparatus and method for obtaining images using coherent...

Details Apparatus and method for obtaining images using coherent... Apparatus and method for obtaining images using coherent...

2009-02-12

2011-11-22

Lyons, Michael A (Department: 2877)

Optics: measuring and testing

By light interference

Spectroscopy

C356S456000

Reexamination Certificate

active

08064064

ABSTRACT:
Disclosed is an apparatus and method for obtaining images using coherent anti-stokes Raman scattering. The apparatus for obtaining images using coherent anti-stokes Raman scattering according to the present invention comprises: a pump light source and a stokes light source that irradiate pump light and stokes light on a sample to generate anti-stokes light having anti-stokes frequency; a reference light source that generates reference light; and an image obtaining unit that obtains the images of the sample using a change in phase of the reference light due to a change in the refractive index of the sample in the vicinity of the anti-stokes frequency. Thereby, the present invention can provide the apparatus for obtaining images using coherent anti-stokes Raman scattering that is not affected by a non-resonant background signal phenomenon, strong resistance against noise even in a weak signal, and has excellent sensitivity and resolution.

REFERENCES:
patent: 7388668 (2008-06-01), Potma et al.
patent: 7573577 (2009-08-01), Martinez
patent: 7586618 (2009-09-01), Marks et al.
patent: 7667848 (2010-02-01), Lee et al.
patent: 2008/0192260 (2008-08-01), Seong et al.

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