报告题目: 复杂光场调控及其潜在应用

Engineering and sensing complex optical fields and their potential applications

报告人:詹其文 博士，教授, 美国代顿大学

时间: 2017年6月13日13:30

地点: 综合楼C214

Abstract:

Recently there is a rapidly increasing interest in complex optical fields with spatially variant amplitude, phase and/or polarization within their cross-section. Scalar optical vortices carrying orbital angular momentum and vectorial vortices such as radially, azimuthally polarized beams are among the most intensively studied examples. The added degrees of freedom arising from the amplitude, phase and polarization diversity within the beam cross-section enables scientists and engineers to break the limits imposed by conventional wisdom in many applications. In this talk I will give an overview of our recent works on the fundamentals of various complex optical fields and their methods of generation. Systematic approaches using these complex fields for comprehensive three-dimensional focal field engineering are reviewed and exotic optical focal field distributions with properties beyond the diffraction limit are demonstrated as examples. Wavefront sensing techniques that are suitable for adaptive and onsite testing will also be presented. Field manipulation, focusing and confinement through the interactions of these complex fields with nanostructured materials and surfaces and their applications will be briefly discussed.

Brief Bio:

詹其文教授，1996年获中国科学技术大学物理学士，2002年获美国明尼苏达大学电子工程博士, 同年获得美国代顿大学电子光学系教职，历任助理教授（2002年），终身制副教授（2008年），终身制教授（2012年），创立代顿大学纳米电子光学实验室（Nano Electro-Optics Laboratories）并担任美国代顿大学Fraunhofer中心主任。主要研究领域包括光场调控及其与微纳结构相互作用，纳米光子学，生物光子学，超分辨成像及纳米结构表征等。 现任美国光学学会Optica副主编，自然出版集团Scientific Reports编委，自然－施普林格Journal of Nondestructive Evaluation编委。主持研究经费超1100万美元；发表SCI学术论文120余篇，引用6000余次；出版专著1部、专著章节7章；获授权美国及国际专利6项；其中高分辨椭偏成像、近场拉曼等技术转让美国及德国企业进行产业化开发。由于在光场调控和纳米光学领域的突出贡献，获选为美国光学学会（OSA）Fellow以及国际光电学会（SPIE）Fellow。