Topological insulator laser : theory
Topological insulators are phases of matter characterized by topological edge states that propagate in a unidirectional manner that is robust to imperfections and disorder. These attributes make topological insulator systems ideal candidates for enabling applications in quantum computation and spint...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Online Access: | https://hdl.handle.net/10356/90137 http://hdl.handle.net/10220/48415 |
| _version_ | 1826122523883864064 |
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| author | Chong, Yi Dong Harari, Gal Bandres, Miguel A. Lumer, Yaakov Rechtsman, Mikael C. Khajavikhan, Mercedeh Christodoulides, Demetrios N. Segev, Mordechai |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Chong, Yi Dong Harari, Gal Bandres, Miguel A. Lumer, Yaakov Rechtsman, Mikael C. Khajavikhan, Mercedeh Christodoulides, Demetrios N. Segev, Mordechai |
| author_sort | Chong, Yi Dong |
| collection | NTU |
| description | Topological insulators are phases of matter characterized by topological edge states that propagate in a unidirectional manner that is robust to imperfections and disorder. These attributes make topological insulator systems ideal candidates for enabling applications in quantum computation and spintronics. We propose a concept that exploits topological effects in a unique way: the topological insulator laser. These are lasers whose lasing mode exhibits topologically protected transport without magnetic fields. The underlying topological properties lead to a highly efficient laser, robust to defects and disorder, with single-mode lasing even at very high gain values. The topological insulator laser alters current understanding of the interplay between disorder and lasing, and at the same time opens exciting possibilities in topological physics, such as topologically protected transport in systems with gain. On the technological side, the topological insulator laser provides a route to arrays of semiconductor lasers that operate as one single-mode high-power laser coupled efficiently into an output port. |
| first_indexed | 2024-10-01T05:49:32Z |
| format | Journal Article |
| id | ntu-10356/90137 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:49:32Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/901372023-02-28T19:36:51Z Topological insulator laser : theory Chong, Yi Dong Harari, Gal Bandres, Miguel A. Lumer, Yaakov Rechtsman, Mikael C. Khajavikhan, Mercedeh Christodoulides, Demetrios N. Segev, Mordechai School of Physical and Mathematical Sciences DRNTU::Science::Physics Topological Insulator Laser Topological insulators are phases of matter characterized by topological edge states that propagate in a unidirectional manner that is robust to imperfections and disorder. These attributes make topological insulator systems ideal candidates for enabling applications in quantum computation and spintronics. We propose a concept that exploits topological effects in a unique way: the topological insulator laser. These are lasers whose lasing mode exhibits topologically protected transport without magnetic fields. The underlying topological properties lead to a highly efficient laser, robust to defects and disorder, with single-mode lasing even at very high gain values. The topological insulator laser alters current understanding of the interplay between disorder and lasing, and at the same time opens exciting possibilities in topological physics, such as topologically protected transport in systems with gain. On the technological side, the topological insulator laser provides a route to arrays of semiconductor lasers that operate as one single-mode high-power laser coupled efficiently into an output port. MOE (Min. of Education, S’pore) Accepted version 2019-05-28T07:35:16Z 2019-12-06T17:41:33Z 2019-05-28T07:35:16Z 2019-12-06T17:41:33Z 2018 Journal Article Harari, G., Bandres, M. A., Lumer, Y., Rechtsman, M. C., Chong, Y. D., Khajavikhan, M., . . . Segev, M. (2018). Topological insulator laser : theory. Science, 359(6381), eaar4003-. doi:10.1126/science.aar4003 0036-8075 https://hdl.handle.net/10356/90137 http://hdl.handle.net/10220/48415 10.1126/science.aar4003 en Science © 2017 The Author(s). All rights reserved. This paper was published by American Association for the Advancement of Science (AAAS) in Science and is made available with permission of The Author(s). 24 p. application/pdf |
| spellingShingle | DRNTU::Science::Physics Topological Insulator Laser Chong, Yi Dong Harari, Gal Bandres, Miguel A. Lumer, Yaakov Rechtsman, Mikael C. Khajavikhan, Mercedeh Christodoulides, Demetrios N. Segev, Mordechai Topological insulator laser : theory |
| title | Topological insulator laser : theory |
| title_full | Topological insulator laser : theory |
| title_fullStr | Topological insulator laser : theory |
| title_full_unstemmed | Topological insulator laser : theory |
| title_short | Topological insulator laser : theory |
| title_sort | topological insulator laser theory |
| topic | DRNTU::Science::Physics Topological Insulator Laser |
| url | https://hdl.handle.net/10356/90137 http://hdl.handle.net/10220/48415 |
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