Title:
THERMAL RADIATION LIGHT SOURCE
Document Type and Number:
WIPO Patent Application WO/2014/136671
Kind Code:
A1
Abstract:
The present invention provides a thermal radiation light source that enables light having desired peak wavelengths to easily be obtained due to a wider selection of materials than in the past. The thermal radiation light source (10) is provided with a thermo-optical converter having an optical structure wherein a refractive index distribution is formed in a member (11) comprising an intrinsic semiconductor in such a manner as to resonates with light having a shorter wavelength than the wavelength corresponding to the band gap of the intrinsic semiconductor. When heat is supplied to the thermo-optical converter from outside, light having a spectrum in a wavelength band that is shorter than a cutoff wavelength is emitted due to interband absorption in the intrinsic semiconductor, and light of a resonant wavelength (λr) within the abovementioned wavelength band that resonates in the optical structure is selectively intensified, and emitted as thermal radiation light. Since a wide selection of materials is used for the intrinsic semiconductor in the present invention, a thermal radiation light source, which produces light in a narrow band having a desired peak wavelength, can easily be obtained.
Inventors:
NODA SUSUMU (JP)
SHIBAHARA TATSUYA (JP)
DE ZOYSA MENAKA (JP)
ASANO TAKASHI (JP)
KITANO KEISUKE (JP)
SUZUKI KATSUYOSHI (JP)
INOUE TAKUYA (JP)
ISHIZAKI KENJI (JP)
SHIBAHARA TATSUYA (JP)
DE ZOYSA MENAKA (JP)
ASANO TAKASHI (JP)
KITANO KEISUKE (JP)
SUZUKI KATSUYOSHI (JP)
INOUE TAKUYA (JP)
ISHIZAKI KENJI (JP)
Application Number:
PCT/JP2014/055056
Publication Date:
September 12, 2014
Filing Date:
February 28, 2014
Export Citation:
Assignee:
UNIV KYOTO (JP)
International Classes:
H02S10/30; H01K1/04
Domestic Patent References:
| WO2012056806A1 | 2012-05-03 | |||
| WO2009036154A1 | 2009-03-19 | |||
| WO2011146843A2 | 2011-11-24 | |||
| WO2005086302A1 | 2005-09-15 | |||
| WO2007029661A1 | 2007-03-15 |
Foreign References:
| JP2005501383A | 2005-01-13 | |||
| JP2001074955A | 2001-03-23 |
Other References:
TATSUYA SHIBAHARA ET AL.: "13a-PA5-8 Kyotaiiki Kinsekigai Si Photonic Kessho Netsufukusha Kogen no Kento", 2012 NEN SHUKI EXTENDED ABSTRACTS; THE JAPAN SOCIETY OF APPLIED PHYSICS, 27 August 2012 (2012-08-27), XP008177928
DE ZOYSA, MENAKA ET AL.: "Conversion of broadband to narrowband thermal emission through energy recycling", NATURE PHOTONICS, vol. 6, August 2012 (2012-08-01), pages 535 - 539, XP055219891
HITOSHI SAI ET AL.: "Shukiteki na Hyomen Bisai Kozo ni yoru Netsufukusha Spectrum no Seigyo", DAI 61 KAI EXTENDED ABSTRACTS; THE JAPAN SOCIETY OF APPLIED PHYSICS, vol. 3, 2000, pages 909, XP008177939
DAI TAKAGI ET AL.: "OS1-1 Evaluation of Prototype Silicon-Photonic Crystal for High- Efficiency Thermophotovoltaic Power Generation System", NATIONAL SYMPOSIUM ON POWER AND ENERGY SYSTEMS, 28 June 2006 (2006-06-28), pages 21 - 22, XP008177933
TATSUYA SHIBAHARA ET AL.: "28-C1-8 Kinsekigai Si Photonic Kessho Netsufukusha Kogen no Kento (II", 2013 NEN SHUNKI EXTENDED ABSTRACTS; THE JAPAN SOCIETY OF APPLIED PHYSICS, 11 March 2013 (2013-03-11), XP008177937
KOHEI HASHIMOTO ET AL.: "17a-P14-11 Kyotaiiki Kinsekigai Photonic Kessho Netsufukusha Kogen no Kento (III", 2013 NEN SHUKI EXTENDED ABSTRACTS; THE JAPAN SOCIETY OF APPLIED PHYSICS, 31 August 2013 (2013-08-31), XP008177930
DE ZOYSA MENAKA ET AL.: "Conversion of broadband to narrowband thermal emission through energy recycling", NATURE, 8 July 2012 (2012-07-08), Retrieved from the Internet
SUCCESS IN SIGNIFICANTLY NARROWING THERMAL EMISSION SPECTRUM FROM OBJECT --- THIS ACHIEVES CRUCIAL STEP TOWARD EFFECTIVE USE OF ENERGY SUCH AS HIGHLY-EFFICIENT SOLAR CELL APPLICATIONS, 9 July 2012 (2012-07-09), Retrieved from the Internet
See also references of EP 2966773A4
DE ZOYSA, MENAKA ET AL.: "Conversion of broadband to narrowband thermal emission through energy recycling", NATURE PHOTONICS, vol. 6, August 2012 (2012-08-01), pages 535 - 539, XP055219891
HITOSHI SAI ET AL.: "Shukiteki na Hyomen Bisai Kozo ni yoru Netsufukusha Spectrum no Seigyo", DAI 61 KAI EXTENDED ABSTRACTS; THE JAPAN SOCIETY OF APPLIED PHYSICS, vol. 3, 2000, pages 909, XP008177939
DAI TAKAGI ET AL.: "OS1-1 Evaluation of Prototype Silicon-Photonic Crystal for High- Efficiency Thermophotovoltaic Power Generation System", NATIONAL SYMPOSIUM ON POWER AND ENERGY SYSTEMS, 28 June 2006 (2006-06-28), pages 21 - 22, XP008177933
TATSUYA SHIBAHARA ET AL.: "28-C1-8 Kinsekigai Si Photonic Kessho Netsufukusha Kogen no Kento (II", 2013 NEN SHUNKI
KOHEI HASHIMOTO ET AL.: "17a-P14-11 Kyotaiiki Kinsekigai Photonic Kessho Netsufukusha Kogen no Kento (III", 2013 NEN SHUKI
DE ZOYSA MENAKA ET AL.: "Conversion of broadband to narrowband thermal emission through energy recycling", NATURE, 8 July 2012 (2012-07-08), Retrieved from the Internet
SUCCESS IN SIGNIFICANTLY NARROWING THERMAL EMISSION SPECTRUM FROM OBJECT --- THIS ACHIEVES CRUCIAL STEP TOWARD EFFECTIVE USE OF ENERGY SUCH AS HIGHLY-EFFICIENT SOLAR CELL APPLICATIONS, 9 July 2012 (2012-07-09), Retrieved from the Internet
See also references of EP 2966773A4
Attorney, Agent or Firm:
Kyoto International Patent Law Office (JP)
Patent business corporation Kyoto international patent firm (JP)
Patent business corporation Kyoto international patent firm (JP)
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