| Presentation | 2015-01-29 Narrowband high-speed thermal emitters based on quantum wells and photonic crystals Takuya INOUE, ZOYSA Menaka DE, Takashi ASANO, Susumu NODA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Thermal emitters are used over a wide variety of frequencies in various applications. However, they suffer from low power utilization efficiency due to their broadband emission spectra, and also suffer from slow response speed because the emission intensity is determined by the emitters' temperature, which is difficult to modulate fast. In this report, we demonstrate dynamic control of narrowband thermal emission, combining an intersubband transition (ISB-T) in multiple quantum wells (MQWs) with optical resonances in a two-dimensional photonic crystal (PC) slab. The fabricated thermal emitter exhibits a narrowband thermal emission peak with a quality factor of 70 in the mid-infrared range (λ=9.2 μm). Moreover, by applying an external bias to the device and changing the electron density in the quantum wells, we realize high-speed control of the thermal emission intensity at a modulation frequency of around 1 MHz, which is four orders of magnitude faster than that of conventional devices. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Thermal radiation control / Photonic crystal / Quantum well / Intersubband transition |
| Paper # | PN2014-32,OPE2014-157,LQE2014-144,EST2014-86,MWP2014-54 |
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| Conference Information | |
| Committee | EST |
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| Conference Date | 2015/1/22(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 | Electronic Simulation Technology (EST) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Narrowband high-speed thermal emitters based on quantum wells and photonic crystals |
| 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 | ZOYSA Menaka DE |
| 2nd Author's Affiliation | Graduate School of Engineering, Kyoto University |
| 3rd Author's Name | Takashi ASANO |
| 3rd Author's Affiliation | Graduate School of Engineering, Kyoto University |
| 4th Author's Name | Susumu NODA |
| 4th Author's Affiliation | Graduate School of Engineering, Kyoto University |
| Date | 2015-01-29 |
| Paper # | PN2014-32,OPE2014-157,LQE2014-144,EST2014-86,MWP2014-54 |
| Volume (vol) | vol.114 |
| Number (no) | 433 |
| Page | pp.pp.- |
| #Pages | 6 |
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