2019年12月16日，初冬时节，电子科学与应用物理学院十分荣幸地请到工作在杜伦大学的陈树英博士后，为我院师生做主题为“Ultra-fast terahertz imaging with Rydberg atoms”的学术报告。

报告开始前，主持人为在座师生介绍陈树英博士后的研究领域与个人经历。陈树英于2019年1月获得华东师范大学原子与分子专业博士学位。从2017年到2018年，她在澳大利亚昆士兰大学访问了一年。 2019年5月，她进入英国杜伦大学担任博士后研究助理，专注于太赫兹成像方面的研究。

紧接着，陈树英博士后开始了报告：太赫兹成像在安全检查，地下测试和健康测试等应用中扮演着十分重要的角色，因为它可以穿透大量非极性材料，例如衣服，塑料包装纸，但会被水吸收。太赫兹成像虽然图像质量良好，但是花费比较长的时间，从而阻碍了实际应用。在这里，我们演示了一种高分辨率的高速的太赫兹成像系统，该系统将将太赫兹波转换为可见光荧光，并且该荧光可以被普通相机捕获。该系统有望改善太赫兹成像在工业和其他领域的应用。

在现场提问环节，与会的各位老师，同学对报告内容产生浓厚的兴趣，提出了许多与各自领域相关的学术问题，与陈树英博士后交换了意见与建议。大家围绕太赫兹成像等研究方向进行了深入讨论。该报告内容充实，研究新颖，逻辑严谨，在座师生受益匪浅。非常感谢陈树英博士后为我院师生的精彩报告。

报告人简介

Shuying Chen obtained her PhD degree in Jan. 2019 in atomic and molecule major at East China Normal University, under the supervision of Prof. Weiping Zhang. Her PhD work was focused on quantum enhanced metrology based on interferometers. From 2017 to 2018, she visited QOQI-- Prof. Tim Ralph’s group in the University of Queensland in Australia for one year. In May 2019, she moved to Prof. Kevin Weatherill and Prof. Charles Adams’ group as a postdoctoral research associate in the University of Durham in UK, focusing on THz imaging based on thermal Rydberg atoms.

报告简介

THz (0.1THz to 10THz) imaging is useful in applications include security inspection, subsurface test and non-damage health test, because it is non-ionizing and can penetrate a large number of nonpolar materials, such as clothes, plastic wrappers, but absorbed by water. THz imaging methods, such as THz time-domain spectroscopy, micro-bolometer detector arrays, plasmonic detectors, can get good images, but take long time— impeding the practical applications. Here we demonstrate a novel and ultra-fast THz imaging system with high resolution, which applies thermal Rydberg atoms in vapor cell to convert the THz wave into visible optical fluorescence, and the fluorescence can be captured by normal cameras. This system is hopeful to improve the application of THz imaging in industry and other disciplines.