Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity
In this letter, we experimentally demonstrate thirtyfold enhancement in Goos-Hänchen shift at the Brewster angle of a nanophotonic cavity that operates at the wavelength of 632.8 nm. In particular, the point-of-darkness and the singular phase are achieved using a four-layered metal-dielectric-dielec...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/82957 http://hdl.handle.net/10220/47550 |
| _version_ | 1811679615691784192 |
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| author | Sreekanth, Kandammathe Valiyaveedu Ouyang, Qingling Han, Song Yong, Ken-Tye Singh, Ranjan |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Sreekanth, Kandammathe Valiyaveedu Ouyang, Qingling Han, Song Yong, Ken-Tye Singh, Ranjan |
| author_sort | Sreekanth, Kandammathe Valiyaveedu |
| collection | NTU |
| description | In this letter, we experimentally demonstrate thirtyfold enhancement in Goos-Hänchen shift at the Brewster angle of a nanophotonic cavity that operates at the wavelength of 632.8 nm. In particular, the point-of-darkness and the singular phase are achieved using a four-layered metal-dielectric-dielectric-metal asymmetric Fabry-Perot cavity. A highly absorbing ultra-thin layer of germanium in the stack gives rise to the singular phase and the enhanced Goos-Hänchen shift at the point-of-darkness. The obtained giant Goos-Hänchen shift in the lithography-free nanophotonic cavity could enable many intriguing applications including cost-effective label-free biosensors. |
| first_indexed | 2024-10-01T03:11:59Z |
| format | Journal Article |
| id | ntu-10356/82957 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:11:59Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/829572023-02-28T19:31:11Z Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity Sreekanth, Kandammathe Valiyaveedu Ouyang, Qingling Han, Song Yong, Ken-Tye Singh, Ranjan School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies (CDPT) The Photonics Institute DRNTU::Science::Physics Polarization Thin Films In this letter, we experimentally demonstrate thirtyfold enhancement in Goos-Hänchen shift at the Brewster angle of a nanophotonic cavity that operates at the wavelength of 632.8 nm. In particular, the point-of-darkness and the singular phase are achieved using a four-layered metal-dielectric-dielectric-metal asymmetric Fabry-Perot cavity. A highly absorbing ultra-thin layer of germanium in the stack gives rise to the singular phase and the enhanced Goos-Hänchen shift at the point-of-darkness. The obtained giant Goos-Hänchen shift in the lithography-free nanophotonic cavity could enable many intriguing applications including cost-effective label-free biosensors. Published version 2019-01-23T03:30:42Z 2019-12-06T15:08:59Z 2019-01-23T03:30:42Z 2019-12-06T15:08:59Z 2018 Journal Article Sreekanth, K. V., Ouyang, Q., Han, S., Yong, K.-T., & Singh, R. (2018). Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity. Applied Physics Letters, 112(16), 161109-. doi:10.1063/1.5027133 0003-6951 https://hdl.handle.net/10356/82957 http://hdl.handle.net/10220/47550 10.1063/1.5027133 en Applied Physics Letters 10.21979/N9/61WPFK © 2018 The Author(s). All rights reserved. This paper was published by AIP in Applied Physics Letters and is made available with permission of The Author(s). 5 p. application/pdf |
| spellingShingle | DRNTU::Science::Physics Polarization Thin Films Sreekanth, Kandammathe Valiyaveedu Ouyang, Qingling Han, Song Yong, Ken-Tye Singh, Ranjan Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity |
| title | Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity |
| title_full | Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity |
| title_fullStr | Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity |
| title_full_unstemmed | Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity |
| title_short | Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity |
| title_sort | giant enhancement in goos hanchen shift at the singular phase of a nanophotonic cavity |
| topic | DRNTU::Science::Physics Polarization Thin Films |
| url | https://hdl.handle.net/10356/82957 http://hdl.handle.net/10220/47550 |
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