The dawn of non-Hermitian optics

Ramy El-Ganainy, Mercedeh Khajavikhan, Demetrios N. Christodoulides, Sahin K. Ozdemir

Research output: Contribution to journalComment/debatepeer-review

125 Scopus citations


Recent years have seen a tremendous progress in the theory and experimental implementations of non-Hermitian photonics, including all-lossy optical systems as well as parity-time symmetric systems consisting of both optical loss and gain. This progress has led to a host of new intriguing results in the physics of light–matter interactions with promising potential applications in optical sciences and engineering. In this comment, we present a brief perspective on the developments in this field and discuss possible future research directions that can benefit from the notion of non-Hermitian engineering.

Original languageEnglish (US)
Article number37
JournalCommunications Physics
Issue number1
StatePublished - Dec 1 2019

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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