Gyrotropic response in the absence of a bias field
Electromagnetic materials lacking local time-reversal symmetry, such as gyrotropic materials, are of keen interest and importance both scientifically and technologically. Scientifically, topologically nontrivial phenomena, such as photonic chiral edge states, allow for reflection-free transport even...
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| Aineistotyyppi: | Artikkeli |
| Kieli: | en_US |
| Julkaistu: |
National Academy of Sciences (U.S.)
2013
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| Linkit: | http://hdl.handle.net/1721.1/77565 https://orcid.org/0000-0002-7184-5831 https://orcid.org/0000-0002-7244-3682 |
| _version_ | 1826201328231120896 |
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| author | Wang, Zhiyu Wang, Zheng Zhang, Bin Huangfu, Jiangtao Soljacic, Marin Ran, Lixin Joannopoulos, John |
| author2 | Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies |
| author_facet | Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies Wang, Zhiyu Wang, Zheng Zhang, Bin Huangfu, Jiangtao Soljacic, Marin Ran, Lixin Joannopoulos, John |
| author_sort | Wang, Zhiyu |
| collection | MIT |
| description | Electromagnetic materials lacking local time-reversal symmetry, such as gyrotropic materials, are of keen interest and importance both scientifically and technologically. Scientifically, topologically nontrivial phenomena, such as photonic chiral edge states, allow for reflection-free transport even in the presence of large disorder. Technologically, nonreciprocal photonic devices, such as optical isolators and circulators, play critical roles in optical communication and computing technologies because of their ability to eliminate cross-talk and feedback. Nevertheless, most known natural materials that lack local time-reversal symmetry require strong external fields and function only in a limited range of the electromagnetic spectrum. By taking advantage of metamaterials capable of translating the property of unidirectional active electronic circuits into effective dielectric response, we introduce a microwave gyrotropic metamaterial that does not require an external magnetic bias. Strong bulk Faraday-like effects, observed in both simulations and experiments, confirm nonreciprocity of the effective medium. This approach is scalable to many other wavelengths, and it also illustrates an opportunity to synthesize exotic electromagnetic materials. |
| first_indexed | 2024-09-23T11:50:11Z |
| format | Article |
| id | mit-1721.1/77565 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:50:11Z |
| publishDate | 2013 |
| publisher | National Academy of Sciences (U.S.) |
| record_format | dspace |
| spelling | mit-1721.1/775652022-09-27T22:12:41Z Gyrotropic response in the absence of a bias field Wang, Zhiyu Wang, Zheng Zhang, Bin Huangfu, Jiangtao Soljacic, Marin Ran, Lixin Joannopoulos, John Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies Massachusetts Institute of Technology. Department of Physics Wang, Zhiyu Wang, Zheng Joannopoulos, John D. Soljacic, Marin Electromagnetic materials lacking local time-reversal symmetry, such as gyrotropic materials, are of keen interest and importance both scientifically and technologically. Scientifically, topologically nontrivial phenomena, such as photonic chiral edge states, allow for reflection-free transport even in the presence of large disorder. Technologically, nonreciprocal photonic devices, such as optical isolators and circulators, play critical roles in optical communication and computing technologies because of their ability to eliminate cross-talk and feedback. Nevertheless, most known natural materials that lack local time-reversal symmetry require strong external fields and function only in a limited range of the electromagnetic spectrum. By taking advantage of metamaterials capable of translating the property of unidirectional active electronic circuits into effective dielectric response, we introduce a microwave gyrotropic metamaterial that does not require an external magnetic bias. Strong bulk Faraday-like effects, observed in both simulations and experiments, confirm nonreciprocity of the effective medium. This approach is scalable to many other wavelengths, and it also illustrates an opportunity to synthesize exotic electromagnetic materials. National Natural Science Foundation (China) (61131002) National Natural Science Foundation (China) (61071063) National Science Foundation (U.S.). Materials Research Science and Engineering Centers (Program) (Award DMR-0819762) United States. Army Research Office. Institute for Soldier Nanotechnologies (Contract W911NF-07-D-0004) 2013-03-05T21:39:34Z 2013-03-05T21:39:34Z 2012-07 2012-05 Article http://purl.org/eprint/type/JournalArticle 0027-8424 1091-6490 http://hdl.handle.net/1721.1/77565 Wang, Z. et al. “Gyrotropic Response in the Absence of a Bias Field.” Proceedings of the National Academy of Sciences 109.33 (2012): 13194–13197. © 2012 National Academy of Sciences https://orcid.org/0000-0002-7184-5831 https://orcid.org/0000-0002-7244-3682 en_US http://dx.doi.org/10.1073/pnas.1210923109 Proceedings of the National Academy of Sciences of the United States of America 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. application/pdf National Academy of Sciences (U.S.) PNAS |
| spellingShingle | Wang, Zhiyu Wang, Zheng Zhang, Bin Huangfu, Jiangtao Soljacic, Marin Ran, Lixin Joannopoulos, John Gyrotropic response in the absence of a bias field |
| title | Gyrotropic response in the absence of a bias field |
| title_full | Gyrotropic response in the absence of a bias field |
| title_fullStr | Gyrotropic response in the absence of a bias field |
| title_full_unstemmed | Gyrotropic response in the absence of a bias field |
| title_short | Gyrotropic response in the absence of a bias field |
| title_sort | gyrotropic response in the absence of a bias field |
| url | http://hdl.handle.net/1721.1/77565 https://orcid.org/0000-0002-7184-5831 https://orcid.org/0000-0002-7244-3682 |
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