Title:
CARBON ISOTOPE ANALYSIS DEVICE AND CARBON ISOTOPE ANALYSIS METHOD
Document Type and Number:
WIPO Patent Application WO/2016/140254
Kind Code:
A1
Abstract:
A carbon isotope analysis device 1 is provided with the following: a carbon dioxide isotope generation device 40 provided with a combustion unit for generating a gas including carbon dioxide isotopes, from carbon isotopes, and a carbon dioxide isotope purification unit; a spectroscopic device 10 provided with an optical resonator 11 having one pair of mirrors and an optical detector 15 for detecting the intensity of transmission light from the optical resonator 11; and a light generation device 20 provided with one light source 23, a first optical fiber 21 for transmitting the light from the light source, a second optical fiber 22 for wavelength conversion that branches from the first optical fiber 21 and that merges at a merge point on the downstream side of the first optical fiber 21, and a non-linear optical crystal 25 that allows a plurality of light beams having different frequencies to pass, and due to such frequency differences, generates light of a wavelength that absorbs carbon dioxide isotopes. The carbon isotope analysis device 1 is simple, easy to use, and can also analyze carbon 14.
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Inventors:
IGUCHI TETSUO (JP)
TOMITA HIDEKI (JP)
NISHIZAWA NORIHIKO (JP)
HIROTSU TAKAHIRO (JP)
YURUZUME SATOSHI (JP)
TERABAYASHI RYOHEI (JP)
OH-HARA TOSHINARI (JP)
IDENO AKIRA (JP)
SATO ATSUSHI (JP)
TOMITA HIDEKI (JP)
NISHIZAWA NORIHIKO (JP)
HIROTSU TAKAHIRO (JP)
YURUZUME SATOSHI (JP)
TERABAYASHI RYOHEI (JP)
OH-HARA TOSHINARI (JP)
IDENO AKIRA (JP)
SATO ATSUSHI (JP)
Application Number:
PCT/JP2016/056390
Publication Date:
September 09, 2016
Filing Date:
March 02, 2016
Export Citation:
Assignee:
NAT UNIV CORP NAGOYA UNIV (JP)
SEKISUI MEDICAL CO LTD (JP)
SEKISUI MEDICAL CO LTD (JP)
International Classes:
G01N21/3504; G01N21/01; G02F1/37
Domestic Patent References:
| WO2015122475A1 | 2015-08-20 |
Foreign References:
| JP2014504380A | 2014-02-20 | |||
| JP2007085874A | 2007-04-05 | |||
| JP2004287074A | 2004-10-14 | |||
| JP2005537490A | 2005-12-08 |
Other References:
I.GALLI ET AL.: "Molecular Gas Sensing Below Parts Per Trillion: Radiocarbon-Dioxide Optical Detection", PHYSICAL REVIEW LETTERS, vol. 107, 2011, pages 270802 - 1 - 270802-4, XP055072423, DOI: doi:10.1103/PhysRevLett.107.270802
ATSUSHI ISHIZAWA ET AL.: "Demonstration of carrier envelope offset locking with low pulse energy", OPTICS EXPRESS, vol. 16, no. 7, 2008, pages 4706 - 4712, XP055499495
See also references of EP 3267180A4
ATSUSHI ISHIZAWA ET AL.: "Demonstration of carrier envelope offset locking with low pulse energy", OPTICS EXPRESS, vol. 16, no. 7, 2008, pages 4706 - 4712, XP055499495
See also references of EP 3267180A4
Attorney, Agent or Firm:
MOEGI PATENT OFFICE (JP)
Patent business corporation It burns and is ぎ特許事務所. (JP)
Patent business corporation It burns and is ぎ特許事務所. (JP)
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