| Presentation | 2013-01-25 Design of single-mode narrow-bandwidth thermal emitters via control of electronic and photonic states Takuya INOUE, Takashi ASANO, ZOYSA Menaka DE, Ardavan OSKOOI, Susumu NODA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Narrow-bandwidth thermal emitters are desired for applications such as highly-efficient infrared light sources and thermophotovoltaic devices. In this report, we describe a procedure for designing single-mode very-narrowband thermal emitters based on absorption coefficient control by intersubband transition (ISB-T) in quantum wells (QWs) and optical resonance in two-dimensional photonic crystal (2D-PC) slabs. We position a single isolated mode of the PC within the absorption range of ISB-T, and precisely match the mode's radiation rate with its absorption rate. The optimized emitters show single-peak emission with a quality factor Q >100, an emissivity of ~0 9, and a radiation divergence cone of ^～20-. We also theoretically demonstrate that the required input power for one of our designed emitters to maintain a given peak intensity in the surface-normal direction is as little as 1/200 of that for the blackbody emitter. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Thermal radiation control / Photonic crystal / Quantum well / Intersubband transition |
| Paper # | PN2012-58,OPE2012-167,LQE2012-159,EST2012-94,MWP2012-76 |
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| Conference Information | |
| Committee | OPE |
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| Conference Date | 2013/1/17(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optoelectronics (OPE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of single-mode narrow-bandwidth thermal emitters via control of electronic and photonic states |
| Sub Title (in English) | |
| Keyword(1) | Thermal radiation control |
| Keyword(2) | Photonic crystal |
| Keyword(3) | Quantum well |
| Keyword(4) | Intersubband transition |
| 1st Author's Name | Takuya INOUE |
| 1st Author's Affiliation | Graduate School of Engineering, Kyoto University() |
| 2nd Author's Name | Takashi ASANO |
| 2nd Author's Affiliation | Graduate School of Engineering, Kyoto University |
| 3rd Author's Name | ZOYSA Menaka DE |
| 3rd Author's Affiliation | Graduate School of Engineering, Kyoto University |
| 4th Author's Name | Ardavan OSKOOI |
| 4th Author's Affiliation | Graduate School of Engineering, Kyoto University |
| 5th Author's Name | Susumu NODA |
| 5th Author's Affiliation | Graduate School of Engineering, Kyoto University |
| Date | 2013-01-25 |
| Paper # | PN2012-58,OPE2012-167,LQE2012-159,EST2012-94,MWP2012-76 |
| Volume (vol) | vol.112 |
| Number (no) | 399 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |