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Observation of intrinsic chiral bound states in the continuum
Photons with spin angular momentum possess intrinsic chirality, which underpins many phenomena including nonlinear optics , quantum optics , topological photonics and chiroptics . Intrinsic chirality is weak in natural materials, and recent theoretical proposals aimed to enlarge circular dichroism b...
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| Published in: | Nature (London) 2023-01, Vol.613 (7944), p.474-478 |
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| Main Authors: | , , , , , , , , , , |
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| cites | cdi_FETCH-LOGICAL-c331t-a2d7c5d5d2471b95f1b885c4e6e85daa9673d23519ce52e98e7bc3181293d04d3 |
| container_end_page | 478 |
| container_issue | 7944 |
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| container_title | Nature (London) |
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| creator | Chen, Yang Deng, Huachun Sha, Xinbo Chen, Weijin Wang, Ruize Chen, Yu-Hang Wu, Dong Chu, Jiaru Kivshar, Yuri S Xiao, Shumin Qiu, Cheng-Wei |
| description | Photons with spin angular momentum possess intrinsic chirality, which underpins many phenomena including nonlinear optics
, quantum optics
, topological photonics
and chiroptics
. Intrinsic chirality is weak in natural materials, and recent theoretical proposals
aimed to enlarge circular dichroism by resonant metasurfaces supporting bound states in the continuum that enhance substantially chiral light-matter interactions. Those insightful works resort to three-dimensional sophisticated geometries, which are too challenging to be realized for optical frequencies
. Therefore, most of the experimental attempts
showing strong circular dichroism rely on false/extrinsic chirality by using either oblique incidence
or structural anisotropy
. Here we report on the experimental realization of true/intrinsic chiral response with resonant metasurfaces in which the engineered slant geometry breaks both in-plane and out-of-plane symmetries. Our result marks, to our knowledge, the first observation of intrinsic chiral bound states in the continuum with near-unity circular dichroism of 0.93 and a high quality factor exceeding 2,663 for visible frequencies. Our chiral metasurfaces may lead to a plethora of applications in chiral light sources and detectors, chiral sensing, valleytronics and asymmetric photocatalysis. |
| doi_str_mv | 10.1038/s41586-022-05467-6 |
| format | article |
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, quantum optics
, topological photonics
and chiroptics
. Intrinsic chirality is weak in natural materials, and recent theoretical proposals
aimed to enlarge circular dichroism by resonant metasurfaces supporting bound states in the continuum that enhance substantially chiral light-matter interactions. Those insightful works resort to three-dimensional sophisticated geometries, which are too challenging to be realized for optical frequencies
. Therefore, most of the experimental attempts
showing strong circular dichroism rely on false/extrinsic chirality by using either oblique incidence
or structural anisotropy
. Here we report on the experimental realization of true/intrinsic chiral response with resonant metasurfaces in which the engineered slant geometry breaks both in-plane and out-of-plane symmetries. Our result marks, to our knowledge, the first observation of intrinsic chiral bound states in the continuum with near-unity circular dichroism of 0.93 and a high quality factor exceeding 2,663 for visible frequencies. Our chiral metasurfaces may lead to a plethora of applications in chiral light sources and detectors, chiral sensing, valleytronics and asymmetric photocatalysis.</description><identifier>ISSN: 0028-0836</identifier><identifier>EISSN: 1476-4687</identifier><identifier>DOI: 10.1038/s41586-022-05467-6</identifier><identifier>PMID: 36653568</identifier><language>eng</language><publisher>England: Nature Publishing Group</publisher><subject>Angular momentum ; Anisotropy ; Chirality ; Circular dichroism ; Dichroism ; Glass substrates ; Light ; Light sources ; Magnetic fields ; Metasurfaces ; Nonlinear optics ; Optics ; Photons ; Quantum optics ; Radiation ; Symmetry</subject><ispartof>Nature (London), 2023-01, Vol.613 (7944), p.474-478</ispartof><rights>2023. The Author(s), under exclusive licence to Springer Nature Limited.</rights><rights>Copyright Nature Publishing Group Jan 19, 2023</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c331t-a2d7c5d5d2471b95f1b885c4e6e85daa9673d23519ce52e98e7bc3181293d04d3</citedby><cites>FETCH-LOGICAL-c331t-a2d7c5d5d2471b95f1b885c4e6e85daa9673d23519ce52e98e7bc3181293d04d3</cites><orcidid>0000-0003-4027-7162 ; 0000-0003-0623-1515 ; 0000-0002-3410-812X ; 0000-0002-6605-500X ; 0000-0002-8501-5417 ; 0000-0002-0751-9556</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,786,790,27957,27958</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36653568$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chen, Yang</creatorcontrib><creatorcontrib>Deng, Huachun</creatorcontrib><creatorcontrib>Sha, Xinbo</creatorcontrib><creatorcontrib>Chen, Weijin</creatorcontrib><creatorcontrib>Wang, Ruize</creatorcontrib><creatorcontrib>Chen, Yu-Hang</creatorcontrib><creatorcontrib>Wu, Dong</creatorcontrib><creatorcontrib>Chu, Jiaru</creatorcontrib><creatorcontrib>Kivshar, Yuri S</creatorcontrib><creatorcontrib>Xiao, Shumin</creatorcontrib><creatorcontrib>Qiu, Cheng-Wei</creatorcontrib><title>Observation of intrinsic chiral bound states in the continuum</title><title>Nature (London)</title><addtitle>Nature</addtitle><description>Photons with spin angular momentum possess intrinsic chirality, which underpins many phenomena including nonlinear optics
, quantum optics
, topological photonics
and chiroptics
. Intrinsic chirality is weak in natural materials, and recent theoretical proposals
aimed to enlarge circular dichroism by resonant metasurfaces supporting bound states in the continuum that enhance substantially chiral light-matter interactions. Those insightful works resort to three-dimensional sophisticated geometries, which are too challenging to be realized for optical frequencies
. Therefore, most of the experimental attempts
showing strong circular dichroism rely on false/extrinsic chirality by using either oblique incidence
or structural anisotropy
. Here we report on the experimental realization of true/intrinsic chiral response with resonant metasurfaces in which the engineered slant geometry breaks both in-plane and out-of-plane symmetries. Our result marks, to our knowledge, the first observation of intrinsic chiral bound states in the continuum with near-unity circular dichroism of 0.93 and a high quality factor exceeding 2,663 for visible frequencies. Our chiral metasurfaces may lead to a plethora of applications in chiral light sources and detectors, chiral sensing, valleytronics and asymmetric photocatalysis.</description><subject>Angular momentum</subject><subject>Anisotropy</subject><subject>Chirality</subject><subject>Circular dichroism</subject><subject>Dichroism</subject><subject>Glass substrates</subject><subject>Light</subject><subject>Light sources</subject><subject>Magnetic fields</subject><subject>Metasurfaces</subject><subject>Nonlinear optics</subject><subject>Optics</subject><subject>Photons</subject><subject>Quantum optics</subject><subject>Radiation</subject><subject>Symmetry</subject><issn>0028-0836</issn><issn>1476-4687</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNpdkLtOAzEQRS0EIiHwAxRoJRoag9_2FhQo4iVFSgO15bW9iqOsN9heJP6eDQkUVFPMuVczB4BLjG4xououM8yVgIgQiDgTEoojMMVMCsiEksdgihBRECkqJuAs5zVCiGPJTsGECsEpF2oK7pdN9unTlNDHqm-rEEsKMQdb2VVIZlM1_RBdlYspPo_bqqx8ZftYQhyG7hyctGaT_cVhzsD70-Pb_AUuls-v84cFtJTiAg1x0nLHHWESNzVvcaMUt8wLr7gzphaSOkI5rq3nxNfKy8ZSrDCpqUPM0Rm42fduU_8x-Fx0F7L1m42Jvh-yJlJILBQb-Rm4_oeu-yHF8bodpXZvCzpSZE_Z1OecfKu3KXQmfWmM9E6u3svVo1z9I1eLMXR1qB6azru_yK9N-g1uBHOq</recordid><startdate>20230119</startdate><enddate>20230119</enddate><creator>Chen, Yang</creator><creator>Deng, Huachun</creator><creator>Sha, Xinbo</creator><creator>Chen, Weijin</creator><creator>Wang, Ruize</creator><creator>Chen, Yu-Hang</creator><creator>Wu, Dong</creator><creator>Chu, Jiaru</creator><creator>Kivshar, Yuri 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Academic</collection><jtitle>Nature (London)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Yang</au><au>Deng, Huachun</au><au>Sha, Xinbo</au><au>Chen, Weijin</au><au>Wang, Ruize</au><au>Chen, Yu-Hang</au><au>Wu, Dong</au><au>Chu, Jiaru</au><au>Kivshar, Yuri S</au><au>Xiao, Shumin</au><au>Qiu, Cheng-Wei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observation of intrinsic chiral bound states in the continuum</atitle><jtitle>Nature (London)</jtitle><addtitle>Nature</addtitle><date>2023-01-19</date><risdate>2023</risdate><volume>613</volume><issue>7944</issue><spage>474</spage><epage>478</epage><pages>474-478</pages><issn>0028-0836</issn><eissn>1476-4687</eissn><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><abstract>Photons with spin angular momentum possess intrinsic chirality, which underpins many phenomena including nonlinear optics
, quantum optics
, topological photonics
and chiroptics
. Intrinsic chirality is weak in natural materials, and recent theoretical proposals
aimed to enlarge circular dichroism by resonant metasurfaces supporting bound states in the continuum that enhance substantially chiral light-matter interactions. Those insightful works resort to three-dimensional sophisticated geometries, which are too challenging to be realized for optical frequencies
. Therefore, most of the experimental attempts
showing strong circular dichroism rely on false/extrinsic chirality by using either oblique incidence
or structural anisotropy
. Here we report on the experimental realization of true/intrinsic chiral response with resonant metasurfaces in which the engineered slant geometry breaks both in-plane and out-of-plane symmetries. Our result marks, to our knowledge, the first observation of intrinsic chiral bound states in the continuum with near-unity circular dichroism of 0.93 and a high quality factor exceeding 2,663 for visible frequencies. Our chiral metasurfaces may lead to a plethora of applications in chiral light sources and detectors, chiral sensing, valleytronics and asymmetric photocatalysis.</abstract><cop>England</cop><pub>Nature Publishing Group</pub><pmid>36653568</pmid><doi>10.1038/s41586-022-05467-6</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0003-4027-7162</orcidid><orcidid>https://orcid.org/0000-0003-0623-1515</orcidid><orcidid>https://orcid.org/0000-0002-3410-812X</orcidid><orcidid>https://orcid.org/0000-0002-6605-500X</orcidid><orcidid>https://orcid.org/0000-0002-8501-5417</orcidid><orcidid>https://orcid.org/0000-0002-0751-9556</orcidid></addata></record> |
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| ispartof | Nature (London), 2023-01, Vol.613 (7944), p.474-478 |
| issn | 0028-0836 1476-4687 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2767168429 |
| source | Nature_系列刊 |
| subjects | Angular momentum Anisotropy Chirality Circular dichroism Dichroism Glass substrates Light Light sources Magnetic fields Metasurfaces Nonlinear optics Optics Photons Quantum optics Radiation Symmetry |
| title | Observation of intrinsic chiral bound states in the continuum |
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