Simultaneous realization of a coherent perfect absorber and laser by zero-index media with both gain and loss

Handle URI:
http://hdl.handle.net/10754/622636
Title:
Simultaneous realization of a coherent perfect absorber and laser by zero-index media with both gain and loss
Authors:
Bai, Ping; Ding, Kun; Wang, Gang; Luo, Jie; Zhang, Zhao Qing; Chan, C. T.; Wu, Ying ( 0000-0002-7919-1107 ) ; Lai, Yun
Abstract:
We investigate a unique type of zero-index medium with both gain and loss (ZIMGL), whose effective permittivity and permeability are both purely imaginary but of opposite signs. We analytically show that, by using a slab of ZIMGL with equal magnitude of loss and gain, simulation realization of a coherent perfect absorber (CPA) and laser, i.e., the so-called CPA laser, can be achieved. Previously the CPA laser was proposed in parity-time (PT) symmetric systems. However, the ZIMGL does not possess the PT symmetry and thus the underlying physics is distinctly different. By designing a photonic crystal (PC) composed of core-shell rods, with loss and gain distributed in either the core or the shell, we have realized such a ZIMGL. The CPA-laser functionality of such a PC is also confirmed in our numerical simulations. Our work provides a different approach for simultaneous realization of CPA and laser besides PT-symmetric systems.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Bai P, Ding K, Wang G, Luo J, Zhang Z-Q, et al. (2016) Simultaneous realization of a coherent perfect absorber and laser by zero-index media with both gain and loss. Physical Review A 94. Available: http://dx.doi.org/10.1103/PhysRevA.94.063841.
Publisher:
American Physical Society (APS)
Journal:
Physical Review A
Issue Date:
20-Dec-2016
DOI:
10.1103/PhysRevA.94.063841
Type:
Article
ISSN:
2469-9926; 2469-9934
Sponsors:
This work was supported by the State Key Program for Basic Research of China (Grants No. 2014CB360505 and No. 2012CB921501), National Natural Science Foundation of China (Grants No. 11374224 and No. 61671314), King Abdullah University of Science and Technology, a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), and the Hong Kong Research Grants Council (Grant No. AoE/P-02/12).
Additional Links:
http://journals.aps.org/pra/abstract/10.1103/PhysRevA.94.063841
Appears in Collections:
Articles; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorBai, Pingen
dc.contributor.authorDing, Kunen
dc.contributor.authorWang, Gangen
dc.contributor.authorLuo, Jieen
dc.contributor.authorZhang, Zhao Qingen
dc.contributor.authorChan, C. T.en
dc.contributor.authorWu, Yingen
dc.contributor.authorLai, Yunen
dc.date.accessioned2017-01-04T13:04:07Z-
dc.date.available2017-01-04T13:04:07Z-
dc.date.issued2016-12-20en
dc.identifier.citationBai P, Ding K, Wang G, Luo J, Zhang Z-Q, et al. (2016) Simultaneous realization of a coherent perfect absorber and laser by zero-index media with both gain and loss. Physical Review A 94. Available: http://dx.doi.org/10.1103/PhysRevA.94.063841.en
dc.identifier.issn2469-9926en
dc.identifier.issn2469-9934en
dc.identifier.doi10.1103/PhysRevA.94.063841en
dc.identifier.urihttp://hdl.handle.net/10754/622636-
dc.description.abstractWe investigate a unique type of zero-index medium with both gain and loss (ZIMGL), whose effective permittivity and permeability are both purely imaginary but of opposite signs. We analytically show that, by using a slab of ZIMGL with equal magnitude of loss and gain, simulation realization of a coherent perfect absorber (CPA) and laser, i.e., the so-called CPA laser, can be achieved. Previously the CPA laser was proposed in parity-time (PT) symmetric systems. However, the ZIMGL does not possess the PT symmetry and thus the underlying physics is distinctly different. By designing a photonic crystal (PC) composed of core-shell rods, with loss and gain distributed in either the core or the shell, we have realized such a ZIMGL. The CPA-laser functionality of such a PC is also confirmed in our numerical simulations. Our work provides a different approach for simultaneous realization of CPA and laser besides PT-symmetric systems.en
dc.description.sponsorshipThis work was supported by the State Key Program for Basic Research of China (Grants No. 2014CB360505 and No. 2012CB921501), National Natural Science Foundation of China (Grants No. 11374224 and No. 61671314), King Abdullah University of Science and Technology, a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), and the Hong Kong Research Grants Council (Grant No. AoE/P-02/12).en
dc.publisherAmerican Physical Society (APS)en
dc.relation.urlhttp://journals.aps.org/pra/abstract/10.1103/PhysRevA.94.063841en
dc.rightsArchived with thanks to Physical Review Aen
dc.titleSimultaneous realization of a coherent perfect absorber and laser by zero-index media with both gain and lossen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalPhysical Review Aen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionCollege of Physics, Optoelectronics and Energy, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, Chinaen
dc.contributor.institutionDepartment of Physics and Institute for Advanced Study, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kongen
kaust.authorBai, Pingen
kaust.authorWu, Yingen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.