Title:
QUANTUM ABSORPTION SPECTROSCOPY SYSTEM AND QUANTUM ABSORPTION SPECTROSCOPY METHOD
Document Type and Number:
WIPO Patent Application WO/2021/117632
Kind Code:
A1
Abstract:
A quantum absorption spectroscopy system (100) comprises a laser light source (1), a quantum optical system (201), a photodetector (31), and a controller (4). The laser light source (1) emits pump light. The quantum optical system (201): comprises a non-linear optical crystal (23) that, upon having pump light emitted thereon, generates quantum entangled photon pairs of signal photons and idler photons, and a moving mirror (25) that is capable of changing the phase of the idler photons; and is configured such that quantum interference occurs between the plurality of physical processes in which the quantum entangled photon pairs are generated. The photodetector (31) detects the signal photons when a sample is disposed on the optical path of the idler photons and the phase of the idler photons is changed by the non-linear optical crystal (23) and outputs a quantum interference signal corresponding to the detected number of photons. The controller (4) calculates an absorption spectrum characteristic for the sample by subjecting the quantum interference signal to a Fourier transform.
Inventors:
TAKEUCHI SHIGEKI (JP)
OKAMOTO RYO (JP)
MUKAI YU (JP)
OKAMOTO RYO (JP)
MUKAI YU (JP)
Application Number:
PCT/JP2020/045244
Publication Date:
June 17, 2021
Filing Date:
December 04, 2020
Export Citation:
Assignee:
UNIV KYOTO (JP)
International Classes:
G01J3/42; G01J3/45; G01N21/35; G02F1/39
Foreign References:
| US20190086330A1 | 2019-03-21 | |||
| JP2006242771A | 2006-09-14 | |||
| US10648908B2 | 2020-05-12 |
Other References:
MASAYA ARAHATA, BO CAO, RYO OKAMOTO, SHIGEKI TAKEUCHI : "21a-E207-6 Generation of visible-infrared entangled photon pairs using a LiNbO3 crystal", PROCEEDINGS OF THE 80TH JSAP AUTUMN MEETING; SAPPORO, JAPAN; SEPTEMBER 18-21, 2019, vol. 80, 4 September 2019 (2019-09-04) - 21 September 2019 (2019-09-21), pages 03-650, XP009537560
ANNA PATEROVA, HONGZHI YANG, CHENGWU AN, DMITRY KALASHNIKOV, LEONID A. KRIVITSKY: "Measurement of infrared optical constants with visible photons", NEW JOURNAL OF PHYSICS, vol. 20, 2018, pages 043015-1 - 043015-10, XP055834401
ANONYMOUS: "Developed optical technology that can observe the vibration of molecules at a time - A new way to the analysis of complex molecules by skillfully use of nonlinear optical effects", 27 September 2019 (2019-09-27), pages 1 - 5, XP055941840, Retrieved from the Internet [retrieved on 20210212]
ANNA PATEROVAHONGZHI YANGCHENGWU ANDMITRY KALASHNIKOVLEONID KRIVITSKY: "Measurement of infrared optical constants with visible photons", NEW JOURNAL OF PHYSICS, vol. 20, 2018, pages 043015
MASAYUKI OKANOHWAN HONG LIMRYO OKAMOTONORIHIKO NISHIZAWASUNAO KURIMURASHIGEKI TAKEUCHI: "0.54 m resolution two-photon interference with dispersion cancellation for quantum optical coherence tomography", SCIENTIFIC REPORTS, vol. 5, 2015
See also references of EP 4075110A4
ANNA PATEROVA, HONGZHI YANG, CHENGWU AN, DMITRY KALASHNIKOV, LEONID A. KRIVITSKY: "Measurement of infrared optical constants with visible photons", NEW JOURNAL OF PHYSICS, vol. 20, 2018, pages 043015-1 - 043015-10, XP055834401
ANONYMOUS: "Developed optical technology that can observe the vibration of molecules at a time - A new way to the analysis of complex molecules by skillfully use of nonlinear optical effects", 27 September 2019 (2019-09-27), pages 1 - 5, XP055941840, Retrieved from the Internet
ANNA PATEROVAHONGZHI YANGCHENGWU ANDMITRY KALASHNIKOVLEONID KRIVITSKY: "Measurement of infrared optical constants with visible photons", NEW JOURNAL OF PHYSICS, vol. 20, 2018, pages 043015
MASAYUKI OKANOHWAN HONG LIMRYO OKAMOTONORIHIKO NISHIZAWASUNAO KURIMURASHIGEKI TAKEUCHI: "0.54 m resolution two-photon interference with dispersion cancellation for quantum optical coherence tomography", SCIENTIFIC REPORTS, vol. 5, 2015
See also references of EP 4075110A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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