Paper Abstract and Keywords |
Presentation |
2015-01-29 11:20
[Invited Talk]
Narrowband high-speed thermal emitters based on quantum wells and photonic crystals Takuya Inoue, Menaka De Zoysa, Takashi Asano, Susumu Noda (Kyoto Univ.) PN2014-32 OPE2014-157 LQE2014-144 EST2014-86 MWP2014-54 Link to ES Tech. Rep. Archives: OPE2014-157 LQE2014-144 EST2014-86 MWP2014-54 |
Abstract |
(in Japanese) |
(See Japanese page) |
(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 ( $lambda$=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) |
(in English) |
Thermal radiation control / Photonic crystal / Quantum well / Intersubband transition / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 114, no. 432, LQE2014-144, pp. 29-34, Jan. 2015. |
Paper # |
LQE2014-144 |
Date of Issue |
2015-01-22 (PN, OPE, LQE, EST, MWP) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
Download PDF |
PN2014-32 OPE2014-157 LQE2014-144 EST2014-86 MWP2014-54 Link to ES Tech. Rep. Archives: OPE2014-157 LQE2014-144 EST2014-86 MWP2014-54 |
Conference Information |
Committee |
EST OPE LQE EMT PN MWP IEE-EMT |
Conference Date |
2015-01-29 - 2015-01-30 |
Place (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
LQE |
Conference Code |
2015-01-EST-OPE-LQE-EMT-PN-MWP-EMT |
Language |
Japanese |
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) |
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Keyword(1) |
Thermal radiation control |
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Photonic crystal |
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Quantum well |
Keyword(4) |
Intersubband transition |
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1st Author's Name |
Takuya Inoue |
1st Author's Affiliation |
Kyoto University (Kyoto Univ.) |
2nd Author's Name |
Menaka De Zoysa |
2nd Author's Affiliation |
Kyoto University (Kyoto Univ.) |
3rd Author's Name |
Takashi Asano |
3rd Author's Affiliation |
Kyoto University (Kyoto Univ.) |
4th Author's Name |
Susumu Noda |
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Kyoto University (Kyoto Univ.) |
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Speaker |
Author-1 |
Date Time |
2015-01-29 11:20:00 |
Presentation Time |
35 minutes |
Registration for |
LQE |
Paper # |
PN2014-32, OPE2014-157, LQE2014-144, EST2014-86, MWP2014-54 |
Volume (vol) |
vol.114 |
Number (no) |
no.430(PN), no.431(OPE), no.432(LQE), no.433(EST), no.434(MWP) |
Page |
pp.29-34 |
#Pages |
6 |
Date of Issue |
2015-01-22 (PN, OPE, LQE, EST, MWP) |
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