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Parity–Time Symmetry Synthetic Lasers: Physics and Devices

机译：奇偶时间对称合成激光器：物理和设备

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摘要

The invention of the laser has revolutionized modern science and engineering as well as our daily lives. Recently, a new class of lasers based on concepts borrowed from parity-time symmetry in quantum mechanics has emerged. Parity-time symmetry, initially applied to condensed matter systems, extends canonical quantum theory to non-Hermitian quantum theory. The experimental exploration of parity-time symmetry in electronics is challenging; so by analogy, such concept is introduced in photonics where flexibility exists in realizing non-Hermitian eigenstates involving optical gain and loss. Lasers intrinsically involve both gain and loss, which makes them the natural candidates to explore and exploit parity-time symmetry in photonics. Recent studies have demonstrated various novel laser devices based on parity-time symmetry, which show unique properties such as single mode lasing, chiral mode lasing, and exceptional point enhanced sensing. In this review, the fundamentals are introduced and recent advances in parity-time symmetric laser devices are discussed, furthermore an outlook on this emergent field is provided.
机译：激光的发明彻底改变了现代科学和工程技术以及我们的日常生活。最近，出现了一种新的基于量子力学中奇偶时间对称性概念的激光器。奇偶时间对称性最初应用于凝聚态系统，它把规范量子理论扩展到了非赫米特量子理论。电子中奇偶时间对称性的实验探索具有挑战性。因此，以此类推，这种概念被引入到光子学中，在实现具有光学增益和损耗的非赫米特本征态方面存在灵活性的光子学中。激光器本质上涉及增益和损耗，这使它们成为探索和利用光子学中奇偶时间对称性的自然候选者。最近的研究已经证明了各种基于奇偶时间对称性的新型激光设备，它们显示出独特的特性，例如单模激光，手性模激光和出色的点增强感测。在这篇综述中，介绍了基本原理，并讨论了奇偶时间对称激光设备的最新进展，并提供了对这一新兴领域的展望。

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  • 来源
    《Advanced Optical Materials》 |2019年第22期|1900694.1-1900694.21|共21页
  • 作者

    Qi Bingkun; Chen Hua-Zhou; Ge Li; Berini Pierre; Ma Ren-Min;

  • 作者单位

    Peking Univ State Key Lab Mesoscop Phys Beijing 100871 Peoples R China|Peking Univ Sch Phys Beijing 100871 Peoples R China|CUNY Coll Staten Isl Dept Phys & Astron New York NY 10314 USA|CUNY Grad Ctr New York NY 10016 USA;

    Peking Univ State Key Lab Mesoscop Phys Beijing 100871 Peoples R China|Peking Univ Sch Phys Beijing 100871 Peoples R China;

    CUNY Coll Staten Isl Dept Phys & Astron New York NY 10314 USA|CUNY Grad Ctr New York NY 10016 USA;

    Univ Ottawa Sch Elect Engn & Comp Sci EECS 25 Templeton St Ottawa Ottawa ON K1N 6N5 Canada|Univ Ottawa Dept Phys 150 Louis Pasteur St Ottawa ON K1N 6N5 Canada|Univ Ottawa Ctr Res Photon 25 Templeton St Ottawa ON K1N 6N5 Canada;

    Peking Univ State Key Lab Mesoscop Phys Beijing 100871 Peoples R China|Peking Univ Sch Phys Beijing 100871 Peoples R China|Collaborat Innovat Ctr Quantum Matter Beijing 100871 Peoples R China|Peking Univ Minist Educ NFC MOE Nanooptoelect Frontier Ctr Beijing 100871 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    exceptional point; lasers; non-Hermitian particle-hole symmetry; parity-time symmetry; topological photonics;

    机译：特殊点激光非赫米特粒子孔对称性;奇偶时间对称;拓扑光子学;

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