Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/82957
Title: Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity
Authors: Sreekanth, Kandammathe Valiyaveedu
Ouyang, Qingling
Han, Song
Yong, Ken-Tye
Singh, Ranjan
Keywords: DRNTU::Science::Physics
Polarization
Thin Films
Issue Date: 2018
Source: 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
Series/Report no.: Applied Physics Letters
Abstract: 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.
URI: https://hdl.handle.net/10356/82957
http://hdl.handle.net/10220/47550
ISSN: 0003-6951
DOI: 10.1063/1.5027133
DOI (Related Dataset): 10.21979/N9/61WPFK
Schools: School of Electrical and Electronic Engineering 
School of Physical and Mathematical Sciences 
Research Centres: Centre for Disruptive Photonic Technologies (CDPT) 
The Photonics Institute 
Rights: © 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).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
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