Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/141607
Title: Enhanced absorption in a graphene embedded 1D guided-mode-resonance structure without back-reflector and interferometrically written gratings
Authors: Sahoo, Pankaj Kumar
Pae, Jian Yi
Murukeshan, Vadakke Matham
Keywords: Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Issue Date: 2019
Source: Sahoo, P. K., Pae, J. Y., & Murukeshan, V. M. (2019). Enhanced absorption in a graphene embedded 1D guided-mode-resonance structure without back-reflector and interferometrically written gratings. Optics Letters, 44(15), 3661-3664. doi:10.1364/OL.44.003661
Journal: Optics Letters
Abstract: A theoretical model based on the coupled mode theory is presented to calculate the absorption in a graphene embedded 1D guided-mode-resonance (GMR) structure that does not require a back reflector. The optimized graphene-GMR structure can absorb up to 70% of the incident light which far exceeds the already reported results without using any back-metal reflector or Bragg mirror. The theoretical analysis is valid for binary gratings and pyramidal gratings which are patterned using an interference lithography system. We experimentally validate our theoretical results and analyze the influence of the geometrical parameters to achieve critical coupling for the enhanced absorption.
URI: https://hdl.handle.net/10356/141607
ISSN: 0146-9592
DOI: 10.1364/OL.44.003661
Rights: © 2019 Optical Society of America. All rights reserved. This paper was published in Optics Letters and is made available with permission of Optical Society of America.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SC3DP Journal Articles

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