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| Presentation | 2017-01-19 09:30 Effect of birefringence on lasing circular polarization in spin-controlled vertical-cavity surface-emitting lasers Nobuhide Yokota, Ryutaro Takeuchi, Hiroshi Yasaka (Tohoku Univ.), Kazuhiro Ikeda (AIST)  PN2016-63 EMT2016-92 OPE2016-138 LQE2016-127 EST2016-102 MWP2016-76 Link to ES Tech. Rep. Archives: EMT2016-92 OPE2016-138 LQE2016-127 EST2016-102 MWP2016-76 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We investigate circular polarization characteristics in vertical-cavity surface-emitting lasers (VCSELs) with InAlGaAs quantum wells by injecting spin-polarized electrons for the first time. A degree of circular polarization of 10% is obtained in a reduced birefringence VCSEL at a lasing wavelength of 1544 nm at room temperature under optical pumping of spin-polarized electrons. Strong birefringence originally introduced to stabilize the lasing polarization is confirmed to be undesirable for a high degree of circular polarization in spin-injected VCSELs. A spin-flip rate equation analysis fairly reproduces the experimental results and confirms that both long electron spin relaxation time in quantum wells and weak birefringence in a mesa region are essential for spin-injected VCSELs. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | VCSEL / InAlGaAs quantum well / Electron spin / Birefringence / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 389, LQE2016-127, pp. 127-130, Jan. 2017. | |
| Paper # | LQE2016-127 | |
| Date of Issue | 2017-01-11 (PN, EMT, 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 | PN2016-63 EMT2016-92 OPE2016-138 LQE2016-127 EST2016-102 MWP2016-76 Link to ES Tech. Rep. Archives: EMT2016-92 OPE2016-138 LQE2016-127 EST2016-102 MWP2016-76 |
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| Conference Information | |
| Committee | OPE EST LQE EMT PN MWP IEE-EMT |
| Conference Date | 2017-01-18 - 2017-01-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Iseshi Kanko Bunka Kaikan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | LQE |
| Conference Code | 2017-01-OPE-EST-LQE-EMT-PN-MWP-EMT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effect of birefringence on lasing circular polarization in spin-controlled vertical-cavity surface-emitting lasers |
| Sub Title (in English) | |
| Keyword(1) | VCSEL |
| Keyword(2) | InAlGaAs quantum well |
| Keyword(3) | Electron spin |
| Keyword(4) | Birefringence |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Nobuhide Yokota |
| 1st Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 2nd Author's Name | Ryutaro Takeuchi |
| 2nd Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 3rd Author's Name | Hiroshi Yasaka |
| 3rd Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 4th Author's Name | Kazuhiro Ikeda |
| 4th Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
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| Speaker | Author-1 |
| Date Time | 2017-01-19 09:30:00 |
| Presentation Time | 25 minutes |
| Registration for | LQE |
| Paper # | PN2016-63, EMT2016-92, OPE2016-138, LQE2016-127, EST2016-102, MWP2016-76 |
| Volume (vol) | vol.116 |
| Number (no) | no.386(PN), no.387(EMT), no.388(OPE), no.389(LQE), no.390(EST), no.391(MWP) |
| Page | pp.127-130 |
| #Pages | 4 |
| Date of Issue | 2017-01-11 (PN, EMT, OPE, LQE, EST, MWP) |
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