Experimental Observation of Large Chern Numbers in Photonic Crystals
Despite great interest in the quantum anomalous Hall phase and its analogs, all experimental studies in electronic and bosonic systems have been limited to a Chern number of one. Here, we perform microwave transmission measurements in the bulk and at the edge of ferrimagnetic photonic crystals. Band...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/100284 https://orcid.org/0000-0002-7184-5831 https://orcid.org/0000-0002-7244-3682 https://orcid.org/0000-0003-3438-7234 |
| _version_ | 1826215635010453504 |
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| author | Skirlo, Scott A. Lu, Ling Igarashi, Yuichi Yan, Qinghui Soljacic, Marin Joannopoulos, John |
| author2 | Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies |
| author_facet | Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies Skirlo, Scott A. Lu, Ling Igarashi, Yuichi Yan, Qinghui Soljacic, Marin Joannopoulos, John |
| author_sort | Skirlo, Scott A. |
| collection | MIT |
| description | Despite great interest in the quantum anomalous Hall phase and its analogs, all experimental studies in electronic and bosonic systems have been limited to a Chern number of one. Here, we perform microwave transmission measurements in the bulk and at the edge of ferrimagnetic photonic crystals. Band gaps with large Chern numbers of 2, 3, and 4 are present in the experimental results, which show excellent agreement with theory. We measure the mode profiles and Fourier transform them to produce dispersion relations of the edge modes, whose number and direction match our Chern number calculations. |
| first_indexed | 2024-09-23T16:37:02Z |
| format | Article |
| id | mit-1721.1/100284 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:37:02Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1002842024-03-19T02:16:37Z Experimental Observation of Large Chern Numbers in Photonic Crystals Skirlo, Scott A. Lu, Ling Igarashi, Yuichi Yan, Qinghui Soljacic, Marin Joannopoulos, John Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies Massachusetts Institute of Technology. Department of Physics Skirlo, Scott A. Lu, Ling Igarashi, Yuichi Yan, Qinghui Joannopoulos, John D. Soljacic, Marin Despite great interest in the quantum anomalous Hall phase and its analogs, all experimental studies in electronic and bosonic systems have been limited to a Chern number of one. Here, we perform microwave transmission measurements in the bulk and at the edge of ferrimagnetic photonic crystals. Band gaps with large Chern numbers of 2, 3, and 4 are present in the experimental results, which show excellent agreement with theory. We measure the mode profiles and Fourier transform them to produce dispersion relations of the edge modes, whose number and direction match our Chern number calculations. Massachusetts Institute of Technology (Tom Frank Fellowship) National Science Foundation (U.S.). Graduate Research Fellowship National Science Foundation (U.S.). Materials Research Science and Engineering Centers (Program) (Grant DMR-1419807) National Natural Science Foundation (China) (Grant 61322501) 2015-12-16T14:37:38Z 2015-12-16T14:37:38Z 2015-12 2015-09 2015-12-14T23:00:09Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/100284 Skirlo, Scott A., Ling Lu, Yuichi Igarashi, Qinghui Yan, John Joannopoulos, and Marin Sojacic. "Experimental Observation of Large Chern Numbers in Photonic Crystals." Phys. Rev. Lett. 115, 253901 (December 2015). © 2015 American Physical Society https://orcid.org/0000-0002-7184-5831 https://orcid.org/0000-0002-7244-3682 https://orcid.org/0000-0003-3438-7234 en http://dx.doi.org/10.1103/PhysRevLett.115.253901 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Skirlo, Scott A. Lu, Ling Igarashi, Yuichi Yan, Qinghui Soljacic, Marin Joannopoulos, John Experimental Observation of Large Chern Numbers in Photonic Crystals |
| title | Experimental Observation of Large Chern Numbers in Photonic Crystals |
| title_full | Experimental Observation of Large Chern Numbers in Photonic Crystals |
| title_fullStr | Experimental Observation of Large Chern Numbers in Photonic Crystals |
| title_full_unstemmed | Experimental Observation of Large Chern Numbers in Photonic Crystals |
| title_short | Experimental Observation of Large Chern Numbers in Photonic Crystals |
| title_sort | experimental observation of large chern numbers in photonic crystals |
| url | http://hdl.handle.net/1721.1/100284 https://orcid.org/0000-0002-7184-5831 https://orcid.org/0000-0002-7244-3682 https://orcid.org/0000-0003-3438-7234 |
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