• 首页  学术科研  学术动态> 正文
  • 关于举行康奈尔大学Logan G. Wright博士学术报告会的通知

    发布者:梁栋  发布时间:2021-08-31  浏览次数:623

    报告题目:Spatiotemporal nonlinear waves in multimode optical systems

    报告人:Logan G. Wright, Cornell University and NTT Research, Inc.

    主持人:韦小明  教授

    报告时间:2021910日(星期五)晚上8:30

    Zoom 会议:

    https://us05web.zoom.us/j/89485291694?pwd=YlI0K29hMVJJL2ZSTDdOd2FHbjc5QT09

    会议号:894 8529 1694

    密码:i4qK7h

     

                                         物理与光电学院

                                         2021831

     

    报告摘要:When waves propagate in a medium whose response is nonlinear, particle-like wave packets called solitons can form. Solitons arise due to a dynamic balance of nonlinear and linear processes. Usually, this balance is disrupted by other effects, leading to a microworld of emergent behaviors among soliton-like pulses, including births, bound complexes, deaths, adaptations, and competitions. Solitons have captivated mathematicians and physicists for centuries, and have become indispensable in designing and explaining the physics of ultrafast optical pulses, such as occur in passively mode-locked lasers and microresonators (i.e., mode-locked frequency combs). In this talk, I will discuss our work examining soliton-like pulses of light in multimode waveguides and multimode lasers. While solitons in one-dimensional systems, such as optical fibers with a single spatial mode, systems relatively stable, they are very constrained, limiting the complexity of solitonic phenomena. Solitons in higher-dimensional settings like three-dimensional bulk optical media are, on the other hand, too free: once formed they usually quickly fall apart. In multimode waveguides and cavities, solitons exist in a happy medium: an ‘interdimensional' setting in which vastly more complex soliton behaviors can occur than in either 1D or fully-3D environments. I will explain a few of the diverse ways multimode solitons can form, break apart and explode, and the competition of multimode dissipative solitons in the resource-limited environment of a multimode laser cavity. These observations inspire several routes to designing powerful new kinds of lasers and coherent light sources by exploiting spatiotemporal soliton physics in multimoded laser cavities and waveguides. 

    报告人简介:I received my PhD from Cornell University (Ithaca, NY, USA) in 2018, where I was advised by Frank Wise and studied the physics of nonlinear optical wave propagation and mode-locked lasers. From 2018-2019, I was a postdoctoral researcher in Hideo Mabuchi’s group at Stanford University (Palo Alto, CA, USA), studying multimode quantum nonlinear optics and quantum information. In 2019, I joined Peter McMahon’s new research group at Cornell and jointly, NTT Research’s Physics and Informatics Laboratory, directed by Yoshihisa Yamamoto. My research interests include multimode photonics, the physics of computation, and quantum information science


    «返回上一级学术动态