Title:
REAL-TIME BIREFRINGENT IMAGING FOURIER TRANSFORM SPECTROMETER BASED ON DIFFERENTIAL STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2015/158181
Kind Code:
A1
Abstract:
A real-time birefringent imaging Fourier transform spectrometer based on differential structure is provided. The invention sets a polarization beam splitter to add an imaging branch. Meanwhile, the invention alters the conventional optical structure to the differential structure by setting another polarization beam splitter. Taking the difference between these two interferogram obtained by two branches of differential structure as the final interferogram and performing the required post-processing calculations produces the spectrum at each pixel. In this invention, common-mode error is intensively restrained due to the differential structure, and 50％ of the optical loss is avoided because of casting off the analyzer; a high spatial resolution, high spectral resolution image is acquired by combining the high spatial resolution, colorful image with the low spatial resolution, high spectral resolution image.
Inventors:
JIN PENG (CN)
ZHU SHUAISHUAI (CN)
ZHANG YU (CN)
LIN JIE (CN)
ZHU SHUAISHUAI (CN)
ZHANG YU (CN)
LIN JIE (CN)
Application Number:
PCT/CN2015/072779
Publication Date:
October 22, 2015
Filing Date:
February 11, 2015
Export Citation:
Assignee:
HARBIN INST OF TECHNOLOGY (CN)
International Classes:
G01J3/447; G01J3/45
Foreign References:
| CN103822714A | 2014-05-28 | |||
| CN101806625A | 2010-08-18 | |||
| JP2004055056A | 2004-02-19 | |||
| CN103673899A | 2014-03-26 |
Attorney, Agent or Firm:
INTELLECPRO CHINA LIMITED (CN)
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