Time-reversal and nonlocal effects in PT-symmetric nonlinear lattices with balanced gain and loss

Andrey A. Sukhorukov; Zhiyong Xu; Sergey V. Dmitriev; Sergey V. Suchkov; Yuri S. Kivshar

doi:10.1117/12.894528

Time-reversal and nonlocal effects in PT-symmetric nonlinear lattices with balanced gain and loss

Andrey A. Sukhorukov^*, Zhiyong Xu, Sergey V. Dmitriev, Sergey V. Suchkov, Yuri S. Kivshar

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We reveal a number of fundamentally important effects which underpin the key aspects of light propagation in photonic structures composed of coupled waveguides with loss and gain regions, which are designed as optical analogues of complex parity-time (or PT) symmetric potentials. We identify a generic nature of time-reversals in PT-symmetric optical couplers, which enables flexible control of all-optical switching and a realization of logic operations. We also show that light propagation in PT-symmetric structures can exhibit strongly nonlocal sensitivity to topology of a photonic structure. These results suggest new possibilities for shaping optical beams and pulses compared to conservative structures.

Original language	English
Title of host publication	Active Photonic Materials IV
DOIs	https://doi.org/10.1117/12.894528
Publication status	Published - 2011
Event	Active Photonic Materials IV - San Diego, CA, United States Duration: 22 Oct 2011 → 25 Oct 2011

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	8095
ISSN (Print)	0277-786X

Conference

Conference	Active Photonic Materials IV
Country/Territory	United States
City	San Diego, CA
Period	22/10/11 → 25/10/11

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10.1117/12.894528

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title = "Time-reversal and nonlocal effects in PT-symmetric nonlinear lattices with balanced gain and loss",

abstract = "We reveal a number of fundamentally important effects which underpin the key aspects of light propagation in photonic structures composed of coupled waveguides with loss and gain regions, which are designed as optical analogues of complex parity-time (or PT) symmetric potentials. We identify a generic nature of time-reversals in PT-symmetric optical couplers, which enables flexible control of all-optical switching and a realization of logic operations. We also show that light propagation in PT-symmetric structures can exhibit strongly nonlocal sensitivity to topology of a photonic structure. These results suggest new possibilities for shaping optical beams and pulses compared to conservative structures.",

keywords = "Parity-time symmetry, coupled waveguides, nonlinear optics",

author = "Sukhorukov, {Andrey A.} and Zhiyong Xu and Dmitriev, {Sergey V.} and Suchkov, {Sergey V.} and Kivshar, {Yuri S.}",

year = "2011",

doi = "10.1117/12.894528",

language = "English",

isbn = "9780819487056",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

booktitle = "Active Photonic Materials IV",

note = "Active Photonic Materials IV ; Conference date: 22-10-2011 Through 25-10-2011",

}

Sukhorukov, AA, Xu, Z, Dmitriev, SV, Suchkov, SV & Kivshar, YS 2011, Time-reversal and nonlocal effects in PT-symmetric nonlinear lattices with balanced gain and loss. in Active Photonic Materials IV., 80950N, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8095, Active Photonic Materials IV, San Diego, CA, United States, 22/10/11. https://doi.org/10.1117/12.894528

Time-reversal and nonlocal effects in PT-symmetric nonlinear lattices with balanced gain and loss. / Sukhorukov, Andrey A.; Xu, Zhiyong; Dmitriev, Sergey V. et al.
Active Photonic Materials IV. 2011. 80950N (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8095).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Time-reversal and nonlocal effects in PT-symmetric nonlinear lattices with balanced gain and loss

AU - Sukhorukov, Andrey A.

AU - Xu, Zhiyong

AU - Dmitriev, Sergey V.

AU - Suchkov, Sergey V.

AU - Kivshar, Yuri S.

PY - 2011

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N2 - We reveal a number of fundamentally important effects which underpin the key aspects of light propagation in photonic structures composed of coupled waveguides with loss and gain regions, which are designed as optical analogues of complex parity-time (or PT) symmetric potentials. We identify a generic nature of time-reversals in PT-symmetric optical couplers, which enables flexible control of all-optical switching and a realization of logic operations. We also show that light propagation in PT-symmetric structures can exhibit strongly nonlocal sensitivity to topology of a photonic structure. These results suggest new possibilities for shaping optical beams and pulses compared to conservative structures.

AB - We reveal a number of fundamentally important effects which underpin the key aspects of light propagation in photonic structures composed of coupled waveguides with loss and gain regions, which are designed as optical analogues of complex parity-time (or PT) symmetric potentials. We identify a generic nature of time-reversals in PT-symmetric optical couplers, which enables flexible control of all-optical switching and a realization of logic operations. We also show that light propagation in PT-symmetric structures can exhibit strongly nonlocal sensitivity to topology of a photonic structure. These results suggest new possibilities for shaping optical beams and pulses compared to conservative structures.

KW - Parity-time symmetry

KW - coupled waveguides

KW - nonlinear optics

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U2 - 10.1117/12.894528

DO - 10.1117/12.894528

M3 - Conference contribution

SN - 9780819487056

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Active Photonic Materials IV

T2 - Active Photonic Materials IV

Y2 - 22 October 2011 through 25 October 2011

ER -

Time-reversal and nonlocal effects in PT-symmetric nonlinear lattices with balanced gain and loss

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