Coherent perfect absorption in one-sided reflectionless media

Year: 2016

Authors: Wu J.-H., Artoni M., La Rocca G.C.

Autors Affiliation: Center for Quantum Sciences, Northeast Normal University, Changchun, 130117, China; Department of Engineering and Information Technology, Istituto Nazionale Ottica (INO-CNR), Brescia University, Brescia, 25133, Italy; Scuola Normale Superiore, CNISM, Pisa, 56126, Italy

Abstract: In optical experiments one-sided reflectionless (ORL) and coherent perfect absorption (CPA) are unusual scattering properties yet fascinating for their fundamental aspects and for their practical interest. Although these two concepts have so far remained separated from each other, we prove that the two phenomena are indeed strictly connected. We show that a CPA-ORL connection exists between pairs of points lying along lines close to each other in the 3D space-parameters of a realistic lossy atomic photonic crystal. The connection is expected to be a generic feature of wave scattering in non-Hermitian optical media encompassing, as a particular case, wave scattering in parity-time (PT) symmetric media.


Volume: 6      Pages from: 35356-1  to: 35356-9

More Information: Insightful discussions with S. Horsley and M. Berry at the early stage of the work are kindly acknowledged. J.H.W is grateful for the hospitality at Scuola Normale Superiore in Pisa and the support from National Natural Science Foundation of China (No. 61378094, 11534002, and 11674049).
DOI: 10.1038/srep35356

Citations: 18
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