Wideband coherent perfect absorber based on white-light cavity

Omer Kotlicki; Jacob Scheuer

doi:https://doi.org/10.1364/OL.39.006624

Wideband coherent perfect absorber based on white-light cavity

Omer Kotlicki, Jacob Scheuer

School of Electrical Engineering

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

Abstract

We present a new concept for a broadband coherent perfect absorber (CPA), utilizing the properties of white-light cavities. The designed structure attains coherent absorption over a wide spectrum (40 nm), overcoming the single-frequency limitation of conventional CPAs. A closed form analytic description is presented, supplemented by finite difference time-domain simulations for Si-based devices, demonstrating flat, wide-band power absorption. A new integrated-optics-based pulse absorber/terminator and optical modulator based on these devices are proposed and analyzed.

Original language	English
Pages (from-to)	6624-6627
Number of pages	4
Journal	Optics Letters
Volume	39
Issue number	23
DOIs	https://doi.org/10.1364/OL.39.006624
State	Published - 1 Dec 2014

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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Cite this

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title = "Wideband coherent perfect absorber based on white-light cavity",

abstract = "We present a new concept for a broadband coherent perfect absorber (CPA), utilizing the properties of white-light cavities. The designed structure attains coherent absorption over a wide spectrum (40 nm), overcoming the single-frequency limitation of conventional CPAs. A closed form analytic description is presented, supplemented by finite difference time-domain simulations for Si-based devices, demonstrating flat, wide-band power absorption. A new integrated-optics-based pulse absorber/terminator and optical modulator based on these devices are proposed and analyzed.",

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AB - We present a new concept for a broadband coherent perfect absorber (CPA), utilizing the properties of white-light cavities. The designed structure attains coherent absorption over a wide spectrum (40 nm), overcoming the single-frequency limitation of conventional CPAs. A closed form analytic description is presented, supplemented by finite difference time-domain simulations for Si-based devices, demonstrating flat, wide-band power absorption. A new integrated-optics-based pulse absorber/terminator and optical modulator based on these devices are proposed and analyzed.

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JO - Optics Letters

JF - Optics Letters

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Wideband coherent perfect absorber based on white-light cavity

Abstract

All Science Journal Classification (ASJC) codes

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