Non-Hermitian Nonlinear Optics without Gain and Loss

Yanhua Zhai; Yue Jiang; Yefeng Mei; Ying Zuo; Shengwang Du; Jianming Wen

doi:10.1364/NLO.2019.NM2B.5

Nonlinear Optics (NLO)
OSA Technical Digest (Optica Publishing Group, 2019),
paper NM2B.5
•https://doi.org/10.1364/NLO.2019.NM2B.5

Non-Hermitian Nonlinear Optics without Gain and Loss

Yanhua Zhai, Yue Jiang, Yefeng Mei, Ying Zuo, Shengwang Du, and Jianming Wen

Nonlinear Optics 2019

Waikoloa Beach, Hawaii United States
15–19 July 2019
ISBN: 978-1-943580-62-0

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New Concepts I (NM2B)

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Y. Zhai, Y. Jiang, Y. Mei, Y. Zuo, S. Du, and J. Wen, "Non-Hermitian Nonlinear Optics without Gain and Loss," in Nonlinear Optics (NLO), OSA Technical Digest (Optica Publishing Group, 2019), paper NM2B.5.

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Abstract

We propose and demonstrate non-Hermitian but parity-time-symmetric four-wave mixing in cold atoms without linear gain and loss. Besides the occurrence of nontrivial phase transition, efficient nonlinear conversion without phase matching has also been observed.

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