Title:
THERMAL-RADIATION LIGHT SOURCE AND TWO-DIMENSIONAL PHOTONIC CRYSTAL USED THEREIN
Document Type and Number:
WIPO Patent Application WO/2015/129668
Kind Code:
A1
Abstract:
This invention provides a thermal-radiation light source that allows light-intensity changes with a response speed on par with photoelectric conversion elements. Said thermal-radiation light source (10) is provided with a two-dimensional photonic crystal (12) in which an n layer (112) comprising an n-type semiconductor, a quantum-well-structure layer (114) that has a quantum-well structure, and a p layer (111) comprising a p-type semiconductor are stacked in that order to form a plate (11) inside which different-refractive-index regions (holes (121)), each of which has a refractive index that is different from those of the n layer (112), the p layer (111), and the quantum-well-structure layer (114), are laid out in a periodic manner so as to resonate with light of a specific wavelength corresponding to the transition energy between subbands in the quantum wells in the quantum-well-structure layer (114). This thermal-radiation light source (10) is also provided with a p-type electrode (131) and an n-type electrode (132) for applying, to the abovementioned plate (11), a voltage that is negative on the side corresponding to the p layer (111) and positive on the side corresponding to the n layer (112).
Inventors:
NODA SUSUMU (JP)
INOUE TAKUYA (JP)
ASANO TAKASHI (JP)
DE ZOYSA MENAKA (JP)
INOUE TAKUYA (JP)
ASANO TAKASHI (JP)
DE ZOYSA MENAKA (JP)
Application Number:
PCT/JP2015/055161
Publication Date:
September 03, 2015
Filing Date:
February 24, 2015
Export Citation:
Assignee:
JAPAN SCIENCE & TECH AGENCY (JP)
International Classes:
H01S5/04; H01S5/12; H01S5/18; H01S5/34
Domestic Patent References:
| WO2009036154A1 | 2009-03-19 |
Foreign References:
| JP2008053134A | 2008-03-06 | |||
| JP2008241891A | 2008-10-09 | |||
| JP2968255B1 | 1999-10-25 | |||
| JP2009231773A | 2009-10-08 | |||
| JP2005208470A | 2005-08-04 | |||
| JPS63168071A | 1988-07-12 |
Other References:
DE ZOYSA, MENAKA ET AL.: "Conversion of broadband to narrowband thermal emission through energy recycling", NATURE PHOTONICS, vol. 6, no. 8, August 2012 (2012-08-01), pages 535 - 539, XP055219891, ISSN: 1749-4885
See also references of EP 3113304A4
See also references of EP 3113304A4
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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