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Title:
PHOTONIC BAND IMAGING DEVICE, PHOTONIC BAND IMAGING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/248956
Kind Code:
A1
Abstract:
A photonic band imaging device (1) comprises: an irradiation optical system that irradiates a local region to be observed with broadband light; an infrared light imaging optical system (5) having a camera that images a Fourier surface for each wavelength of scattered light reflected from the local region to be observed; a visible light imaging optical system (6); a mapping unit (53) that acquires a Fourier image of the Fourier surface imaged by the camera for each wavelength and maps the Fourier image acquired for each wavelength in the whole region to be observed; and a specific light information extraction unit (54) that, on the basis of the mapping image mapped by the mapping unit (53), designates prescribed values with respect to a wave number and an energy axis and outputs an image obtained by extracting specific light information.

Inventors:
AMEMIYA TOMOHIRO (JP)
OKADA SHO (JP)
FURUTSUKI GYO (JP)
KAWAMURA KENICHI (JP)
Application Number:
PCT/JP2023/022464
Publication Date:
December 28, 2023
Filing Date:
June 16, 2023
Export Citation:
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Assignee:
TOKYO INST TECH (JP)
NAT INST MATERIALS SCIENCE (JP)
TOKYO INSTR INC (JP)
International Classes:
G01N21/3563; G01J3/51; G01N21/27
Domestic Patent References:
WO2021256514A12021-12-23
Foreign References:
JP2021089146A2021-06-10
JP2012508366A2012-04-05
Other References:
LECHEVALIER CORENTIN, EVAIN CLÉMENT, SURET PIERRE, COPIE FRANÇOIS, AMO ALBERTO, RANDOUX STÉPHANE: "Single-shot measurement of the photonic band structure in a fiber-based Floquet-Bloch lattice", COMMUNICATIONS PHYSICS, vol. 4, no. 1, XP093119864, ISSN: 2399-3650, DOI: 10.1038/s42005-021-00750-w
CHERNOW VICTORIA F., NG RYAN C., PENG SIYING, ATWATER HARRY A., GREER JULIA R.: "Dispersion Mapping in 3-Dimensional Core–Shell Photonic Crystal Lattices Capable of Negative Refraction in the Mid-Infrared", NANO LETTERS, AMERICAN CHEMICAL SOCIETY, US, vol. 21, no. 21, 10 November 2021 (2021-11-10), US , pages 9102 - 9107, XP093119868, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.1c02851
OKADA SHO, AMEMIYA TOMOHIRO, KAGAMI HIBIKI, WANG YAHUI, NISHIYAMA NOBUHIKO, HU XIAO: "Discussion on fabrication accuracy of infrared topological photonic structures using hyperspectral Fourier image spectroscopy", JOURNAL OF THE OPTICAL SOCIETY OF AMERICA - B., OPTICAL SOCIETY OF AMERICA, WASHINGTON., US, vol. 39, no. 9, 1 September 2022 (2022-09-01), US , pages 2464 - 2469, XP093119870, ISSN: 0740-3224, DOI: 10.1364/JOSAB.454949
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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