Induced optical chirality and circularly polarized emission from achiral CdSe/ZnS quantum dots via resonantly coupling with plasmonic chiral metasurfaces
Functionalization of quantum dots to induce circular dichroism as well as the direct emission of circularly polarized light is the subject of intensive studies for the obvious importance not only in practical applications but also in gaining a deeper understanding of quantum semiconductor heterostru...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | English |
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2020
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| Online Access: | https://hdl.handle.net/10356/142827 |
| _version_ | 1811676440901451776 |
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| author | Wang, Zeng Wang, Yue Adamo, Giorgio Teng, Jinghua Sun, Handong |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Wang, Zeng Wang, Yue Adamo, Giorgio Teng, Jinghua Sun, Handong |
| author_sort | Wang, Zeng |
| collection | NTU |
| description | Functionalization of quantum dots to induce circular dichroism as well as the direct emission of circularly polarized light is the subject of intensive studies for the obvious importance not only in practical applications but also in gaining a deeper understanding of quantum semiconductor heterostructures. In this work, remarkable chiral features in achiral CdSe/ZnS colloidal quantum dots (CQDs) induced by plasmonic chiral metasurfaces are reported. Not only giant circular dichroism, but also a high degree of circular polarization in the light emitted by the CQDs hybridized with the chiral metasurfaces is observed. By probing the response of CQDs combined with tunable chiral metasurfaces, it is shown that the induced chiral features are closely linked to the correlation between the absorption bands of CQDs and the chiral bands of the metasurfaces. The findings indicate that plasmonic chiral metasurface is an effective medium in reshaping CQDs with useful chiral properties. |
| first_indexed | 2024-10-01T02:21:31Z |
| format | Journal Article |
| id | ntu-10356/142827 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:21:31Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1428272023-02-28T19:44:12Z Induced optical chirality and circularly polarized emission from achiral CdSe/ZnS quantum dots via resonantly coupling with plasmonic chiral metasurfaces Wang, Zeng Wang, Yue Adamo, Giorgio Teng, Jinghua Sun, Handong School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies Institute of Materials Research and Engineering, A*STAR MajuLab CNRS‐UCA‐SU‐NUS‐NTU International Joint Research Unit Science::Physics Chiral Metasurfaces Circularly Polarized Light Functionalization of quantum dots to induce circular dichroism as well as the direct emission of circularly polarized light is the subject of intensive studies for the obvious importance not only in practical applications but also in gaining a deeper understanding of quantum semiconductor heterostructures. In this work, remarkable chiral features in achiral CdSe/ZnS colloidal quantum dots (CQDs) induced by plasmonic chiral metasurfaces are reported. Not only giant circular dichroism, but also a high degree of circular polarization in the light emitted by the CQDs hybridized with the chiral metasurfaces is observed. By probing the response of CQDs combined with tunable chiral metasurfaces, it is shown that the induced chiral features are closely linked to the correlation between the absorption bands of CQDs and the chiral bands of the metasurfaces. The findings indicate that plasmonic chiral metasurface is an effective medium in reshaping CQDs with useful chiral properties. ASTAR (Agency for Sci., Tech. and Research, S’pore) MOE (Min. of Education, S’pore) Accepted version 2020-07-03T03:35:03Z 2020-07-03T03:35:03Z 2019 Journal Article Wang, Z., Wang, Y., Adamo, G., Teng, J., & Sun, H. (2019). Induced optical chirality and circularly polarized emission from achiral CdSe/ZnS quantum dots via resonantly coupling with plasmonic chiral metasurfaces. Laser and Photonics Reviews, 13(3), 1800276-. doi:10.1002/lpor.201800276 1863-8880 https://hdl.handle.net/10356/142827 10.1002/lpor.201800276 2-s2.0-85060179661 3 13 en Laser and Photonics Reviews This is the accepted version of the following article: Wang, Z., Wang, Y., Adamo, G., Teng, J., & Sun, H. (2019). Induced optical chirality and circularly polarized emission from achiral CdSe/ZnS quantum dots via resonantly coupling with plasmonic chiral metasurfaces. Laser and Photonics Reviews, 13(3), 1800276-, which has been published in final form at https://doi.org/10.1002/lpor.201800276. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html]. application/pdf |
| spellingShingle | Science::Physics Chiral Metasurfaces Circularly Polarized Light Wang, Zeng Wang, Yue Adamo, Giorgio Teng, Jinghua Sun, Handong Induced optical chirality and circularly polarized emission from achiral CdSe/ZnS quantum dots via resonantly coupling with plasmonic chiral metasurfaces |
| title | Induced optical chirality and circularly polarized emission from achiral CdSe/ZnS quantum dots via resonantly coupling with plasmonic chiral metasurfaces |
| title_full | Induced optical chirality and circularly polarized emission from achiral CdSe/ZnS quantum dots via resonantly coupling with plasmonic chiral metasurfaces |
| title_fullStr | Induced optical chirality and circularly polarized emission from achiral CdSe/ZnS quantum dots via resonantly coupling with plasmonic chiral metasurfaces |
| title_full_unstemmed | Induced optical chirality and circularly polarized emission from achiral CdSe/ZnS quantum dots via resonantly coupling with plasmonic chiral metasurfaces |
| title_short | Induced optical chirality and circularly polarized emission from achiral CdSe/ZnS quantum dots via resonantly coupling with plasmonic chiral metasurfaces |
| title_sort | induced optical chirality and circularly polarized emission from achiral cdse zns quantum dots via resonantly coupling with plasmonic chiral metasurfaces |
| topic | Science::Physics Chiral Metasurfaces Circularly Polarized Light |
| url | https://hdl.handle.net/10356/142827 |
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