Probing topological protection using a designer surface plasmon structure
Topological photonic states, inspired by robust chiral edge states in topological insulators, have recently been demonstrated in a few photonic systems, including an array of coupled on-chip ring resonators at communication wavelengths. However, the intrinsic difference between electrons and photons...
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| Format: | Article |
| Language: | en_US |
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Nature Publishing Group
2016
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| Online Access: | http://hdl.handle.net/1721.1/103721 https://orcid.org/0000-0002-7184-5831 https://orcid.org/0000-0002-7244-3682 |
| _version_ | 1826190316240109568 |
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| author | Gao, Fei Gao, Zhen Shi, Xihang Yang, Zhaoju Lin, Xiao Xu, Hongyi Joannopoulos, John Soljacic, Marin Chen, Hongsheng Lu, Ling Chong, Yidong Zhang, Baile |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Gao, Fei Gao, Zhen Shi, Xihang Yang, Zhaoju Lin, Xiao Xu, Hongyi Joannopoulos, John Soljacic, Marin Chen, Hongsheng Lu, Ling Chong, Yidong Zhang, Baile |
| author_sort | Gao, Fei |
| collection | MIT |
| description | Topological photonic states, inspired by robust chiral edge states in topological insulators, have recently been demonstrated in a few photonic systems, including an array of coupled on-chip ring resonators at communication wavelengths. However, the intrinsic difference between electrons and photons determines that the ‘topological protection’ in time-reversal-invariant photonic systems does not share the same robustness as its counterpart in electronic topological insulators. Here in a designer surface plasmon platform consisting of tunable metallic sub-wavelength structures, we construct photonic topological edge states and probe their robustness against a variety of defect classes, including some common time-reversal-invariant photonic defects that can break the topological protection, but do not exist in electronic topological insulators. This is also an experimental realization of anomalous Floquet topological edge states, whose topological phase cannot be predicted by the usual Chern number topological invariants. |
| first_indexed | 2024-09-23T08:38:24Z |
| format | Article |
| id | mit-1721.1/103721 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:38:24Z |
| publishDate | 2016 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | mit-1721.1/1037212022-09-23T13:30:38Z Probing topological protection using a designer surface plasmon structure Gao, Fei Gao, Zhen Shi, Xihang Yang, Zhaoju Lin, Xiao Xu, Hongyi Joannopoulos, John Soljacic, Marin Chen, Hongsheng Lu, Ling Chong, Yidong Zhang, Baile Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Research Laboratory of Electronics Joannopoulos, John Soljacic, Marin Chen, Hongsheng Lu, Ling Topological photonic states, inspired by robust chiral edge states in topological insulators, have recently been demonstrated in a few photonic systems, including an array of coupled on-chip ring resonators at communication wavelengths. However, the intrinsic difference between electrons and photons determines that the ‘topological protection’ in time-reversal-invariant photonic systems does not share the same robustness as its counterpart in electronic topological insulators. Here in a designer surface plasmon platform consisting of tunable metallic sub-wavelength structures, we construct photonic topological edge states and probe their robustness against a variety of defect classes, including some common time-reversal-invariant photonic defects that can break the topological protection, but do not exist in electronic topological insulators. This is also an experimental realization of anomalous Floquet topological edge states, whose topological phase cannot be predicted by the usual Chern number topological invariants. Nanyang Technological University (NAP Start-up Grant, Singapore Ministry of Education, Grant No. MOE2015-T2-1-070) Nanyang Technological University (NAP Start-up Grant, Singapore Ministry of Education, Grant No. MOE2011-T3-1-005) Singapore. National Research Foundation (Grant No. NRFF2012-02) United States. Army Research Office. Institute for Soldier Nanotechnologies (contract number W911NF-13-D-0001) National Science Foundation (U.S.) (NSF MRSEC Program, Award No. DMR-1419807) United States. Dept. of Energy (MIT S3TEC EFRC, DOE Grant No. DE-SC0001299) National Natural Science Foundation (China) (Grant No. 61322501) National Natural Science Foundation (China) (NNSFC Grant no. 61574127) National Natural Science Foundation (China) (NNSFC Grant no. 61275183) China. Ministry of Education (National Top-Notch Young Professionals Program) National Council for Educational Technology (NCET-12-0489 ) Financial Resources Federal Credit Union (FRFCU-2014XZZX003-24) 2016-07-18T20:04:00Z 2016-07-18T20:04:00Z 2016-05 2015-07 Article http://purl.org/eprint/type/JournalArticle 2041-1723 http://hdl.handle.net/1721.1/103721 Gao, Fei, Zhen Gao, Xihang Shi, Zhaoju Yang, Xiao Lin, Hongyi Xu, John D. Joannopoulos, et al. “Probing Topological Protection Using a Designer Surface Plasmon Structure.” Nat Comms 7 (May 20, 2016): 11619. https://orcid.org/0000-0002-7184-5831 https://orcid.org/0000-0002-7244-3682 en_US http://dx.doi.org/10.1038/ncomms11619 Nature Communications Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Nature Publishing Group Nature |
| spellingShingle | Gao, Fei Gao, Zhen Shi, Xihang Yang, Zhaoju Lin, Xiao Xu, Hongyi Joannopoulos, John Soljacic, Marin Chen, Hongsheng Lu, Ling Chong, Yidong Zhang, Baile Probing topological protection using a designer surface plasmon structure |
| title | Probing topological protection using a designer surface plasmon structure |
| title_full | Probing topological protection using a designer surface plasmon structure |
| title_fullStr | Probing topological protection using a designer surface plasmon structure |
| title_full_unstemmed | Probing topological protection using a designer surface plasmon structure |
| title_short | Probing topological protection using a designer surface plasmon structure |
| title_sort | probing topological protection using a designer surface plasmon structure |
| url | http://hdl.handle.net/1721.1/103721 https://orcid.org/0000-0002-7184-5831 https://orcid.org/0000-0002-7244-3682 |
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