Coherent perfect absorption and reflection in slow-light waveguides

We identify a family of unusual slow-light modes occurring in lossy multimode grating waveguides, for which either the forward or backward mode components, or both, are degenerate. In the fully degenerate case, the response can be modulated between coherent perfect absorption (zero reflection) and p...

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Main Authors: Gutman, Nadav., Sukhorukov, Andrey A., Chong, Y. D., Sterke, C. Martijn de.
Other Authors: School of Physical and Mathematical Sciences
Format: Journal Article
Language:English
Published: 2014
Subjects:
Online Access:https://hdl.handle.net/10356/96225
http://hdl.handle.net/10220/18374
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author Gutman, Nadav.
Sukhorukov, Andrey A.
Chong, Y. D.
Sterke, C. Martijn de.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Gutman, Nadav.
Sukhorukov, Andrey A.
Chong, Y. D.
Sterke, C. Martijn de.
author_sort Gutman, Nadav.
collection NTU
description We identify a family of unusual slow-light modes occurring in lossy multimode grating waveguides, for which either the forward or backward mode components, or both, are degenerate. In the fully degenerate case, the response can be modulated between coherent perfect absorption (zero reflection) and perfect reflection by varying the wave amplitudes in a uniform input waveguide. The perfectly absorbed wave has anomalously short absorption length, scaling as the inverse one-third power of the absorptivity.
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spelling ntu-10356/962252023-02-28T19:37:53Z Coherent perfect absorption and reflection in slow-light waveguides Gutman, Nadav. Sukhorukov, Andrey A. Chong, Y. D. Sterke, C. Martijn de. School of Physical and Mathematical Sciences DRNTU::Science::Physics::Optics and light We identify a family of unusual slow-light modes occurring in lossy multimode grating waveguides, for which either the forward or backward mode components, or both, are degenerate. In the fully degenerate case, the response can be modulated between coherent perfect absorption (zero reflection) and perfect reflection by varying the wave amplitudes in a uniform input waveguide. The perfectly absorbed wave has anomalously short absorption length, scaling as the inverse one-third power of the absorptivity. Published version 2014-01-03T02:25:28Z 2019-12-06T19:27:32Z 2014-01-03T02:25:28Z 2019-12-06T19:27:32Z 2013 2013 Journal Article Gutman, N., Sukhorukov, A. A., Chong, Y. D., & Sterke, C. M. d. (2013). Coherent perfect absorption and reflection in slow-light waveguides. Optics letters, 38(23), 4970- 4973. https://hdl.handle.net/10356/96225 http://hdl.handle.net/10220/18374 10.1364/OL.38.004970 en Optics letters © 2013 Optical Society of America. This paper was published in Optics Letters and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at the following official DOI: [http://dx.doi.org/10.1364/OL.38.004970]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf
spellingShingle DRNTU::Science::Physics::Optics and light
Gutman, Nadav.
Sukhorukov, Andrey A.
Chong, Y. D.
Sterke, C. Martijn de.
Coherent perfect absorption and reflection in slow-light waveguides
title Coherent perfect absorption and reflection in slow-light waveguides
title_full Coherent perfect absorption and reflection in slow-light waveguides
title_fullStr Coherent perfect absorption and reflection in slow-light waveguides
title_full_unstemmed Coherent perfect absorption and reflection in slow-light waveguides
title_short Coherent perfect absorption and reflection in slow-light waveguides
title_sort coherent perfect absorption and reflection in slow light waveguides
topic DRNTU::Science::Physics::Optics and light
url https://hdl.handle.net/10356/96225
http://hdl.handle.net/10220/18374
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