Transmission Characteristics and Tunable Unidirectional Reflectionlessness of PT Symmetry in Coupled Optical Resonator

Haixia Zeng; Hongyi Chen; Qi Qin

doi:10.1117/12.2686739

Transmission Characteristics and Tunable Unidirectional Reflectionlessness of PT Symmetry in Coupled Optical Resonator

Haixia Zeng
, Hongyi Chen
, Qi Qin

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

The property of the transmission characteristics and tunable unidirectional reflectionlessness phenomenon is theoretically investigated in a PT-symmetric system consisting of two optical resonators end-coupled to the waveguide. Our scheme exhibits that the system experiences unbroken states, exceptional point and broken states by properly adjusting the loss of the system, and its reflection spectrum have different characteristics. Tunable unidirectional reflectionlessness is possible due to the difference in reflection for forward and backward propagation of the system, and the contrast ratio of unidirectional reflectionlessness is greater than 85%. © 2023 SPIE.

Original language	English
Title of host publication	International Conference on Optoelectronic Information and Functional Materials (OIFM 2023)
Editors	Yabo Fu, Kolla Bhanu Prakash
Place of Publication	Bellingham, Washington
Publisher	SPIE - International Society for Optical Engineering
Number of pages	8
ISBN (Electronic)	9781510668126
ISBN (Print)	9781510668119
DOIs	https://doi.org/10.1117/12.2686739
Publication status	Published - 2023
Externally published	Yes
Event	2nd International Conference on Optoelectronic Information and Functional Materials (OIFM 2023) - Guangzhou, China Duration: 14 Apr 2023 → 16 Apr 2023 https://2023.oifm.org/

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	12781
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	2nd International Conference on Optoelectronic Information and Functional Materials (OIFM 2023)
Place	China
City	Guangzhou
Period	14/04/23 → 16/04/23
Internet address	https://2023.oifm.org/

Research Keywords

Coupling resonator
non - Hermitian
PT-symmetric system
unidirectional reflectionlessness

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Zeng, H., Chen, H., & Qin, Q. (2023). Transmission Characteristics and Tunable Unidirectional Reflectionlessness of PT Symmetry in Coupled Optical Resonator. In Y. Fu, & K. B. Prakash (Eds.), International Conference on Optoelectronic Information and Functional Materials (OIFM 2023) Article 1278114 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12781). SPIE - International Society for Optical Engineering. https://doi.org/10.1117/12.2686739

Zeng, Haixia ; Chen, Hongyi ; Qin, Qi. / Transmission Characteristics and Tunable Unidirectional Reflectionlessness of PT Symmetry in Coupled Optical Resonator. International Conference on Optoelectronic Information and Functional Materials (OIFM 2023). editor / Yabo Fu ; Kolla Bhanu Prakash. Bellingham, Washington : SPIE - International Society for Optical Engineering, 2023. (Proceedings of SPIE - The International Society for Optical Engineering).

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abstract = "The property of the transmission characteristics and tunable unidirectional reflectionlessness phenomenon is theoretically investigated in a PT-symmetric system consisting of two optical resonators end-coupled to the waveguide. Our scheme exhibits that the system experiences unbroken states, exceptional point and broken states by properly adjusting the loss of the system, and its reflection spectrum have different characteristics. Tunable unidirectional reflectionlessness is possible due to the difference in reflection for forward and backward propagation of the system, and the contrast ratio of unidirectional reflectionlessness is greater than 85\%. {\textcopyright} 2023 SPIE.",

keywords = "Coupling resonator, non - Hermitian, PT-symmetric system, unidirectional reflectionlessness",

author = "Haixia Zeng and Hongyi Chen and Qi Qin",

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language = "English",

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

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booktitle = "International Conference on Optoelectronic Information and Functional Materials (OIFM 2023)",

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note = "2nd International Conference on Optoelectronic Information and Functional Materials (OIFM 2023) ; Conference date: 14-04-2023 Through 16-04-2023",

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Zeng, H, Chen, H & Qin, Q 2023, Transmission Characteristics and Tunable Unidirectional Reflectionlessness of PT Symmetry in Coupled Optical Resonator. in Y Fu & KB Prakash (eds), International Conference on Optoelectronic Information and Functional Materials (OIFM 2023)., 1278114, Proceedings of SPIE - The International Society for Optical Engineering, vol. 12781, SPIE - International Society for Optical Engineering, Bellingham, Washington, 2nd International Conference on Optoelectronic Information and Functional Materials (OIFM 2023), Guangzhou, China, 14/04/23. https://doi.org/10.1117/12.2686739

Transmission Characteristics and Tunable Unidirectional Reflectionlessness of PT Symmetry in Coupled Optical Resonator. / Zeng, Haixia; Chen, Hongyi; Qin, Qi.
International Conference on Optoelectronic Information and Functional Materials (OIFM 2023). ed. / Yabo Fu; Kolla Bhanu Prakash. Bellingham, Washington: SPIE - International Society for Optical Engineering, 2023. 1278114 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12781).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Transmission Characteristics and Tunable Unidirectional Reflectionlessness of PT Symmetry in Coupled Optical Resonator

AU - Zeng, Haixia

AU - Chen, Hongyi

AU - Qin, Qi

PY - 2023

Y1 - 2023

N2 - The property of the transmission characteristics and tunable unidirectional reflectionlessness phenomenon is theoretically investigated in a PT-symmetric system consisting of two optical resonators end-coupled to the waveguide. Our scheme exhibits that the system experiences unbroken states, exceptional point and broken states by properly adjusting the loss of the system, and its reflection spectrum have different characteristics. Tunable unidirectional reflectionlessness is possible due to the difference in reflection for forward and backward propagation of the system, and the contrast ratio of unidirectional reflectionlessness is greater than 85%. © 2023 SPIE.

AB - The property of the transmission characteristics and tunable unidirectional reflectionlessness phenomenon is theoretically investigated in a PT-symmetric system consisting of two optical resonators end-coupled to the waveguide. Our scheme exhibits that the system experiences unbroken states, exceptional point and broken states by properly adjusting the loss of the system, and its reflection spectrum have different characteristics. Tunable unidirectional reflectionlessness is possible due to the difference in reflection for forward and backward propagation of the system, and the contrast ratio of unidirectional reflectionlessness is greater than 85%. © 2023 SPIE.

KW - Coupling resonator

KW - non - Hermitian

KW - PT-symmetric system

KW - unidirectional reflectionlessness

UR - https://www.scopus.com/pages/publications/85171369883

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85171369883&origin=recordpage

U2 - 10.1117/12.2686739

DO - 10.1117/12.2686739

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9781510668119

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

BT - International Conference on Optoelectronic Information and Functional Materials (OIFM 2023)

A2 - Fu, Yabo

A2 - Prakash, Kolla Bhanu

PB - SPIE - International Society for Optical Engineering

CY - Bellingham, Washington

T2 - 2nd International Conference on Optoelectronic Information and Functional Materials (OIFM 2023)

Y2 - 14 April 2023 through 16 April 2023

ER -

Zeng H, Chen H, Qin Q. Transmission Characteristics and Tunable Unidirectional Reflectionlessness of PT Symmetry in Coupled Optical Resonator. In Fu Y, Prakash KB, editors, International Conference on Optoelectronic Information and Functional Materials (OIFM 2023). Bellingham, Washington: SPIE - International Society for Optical Engineering. 2023. 1278114. (Proceedings of SPIE - The International Society for Optical Engineering). Epub 2023 Aug 6. doi: 10.1117/12.2686739

Transmission Characteristics and Tunable Unidirectional Reflectionlessness of PT Symmetry in Coupled Optical Resonator

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