报告时间：4月1日（周二）上午9:30
报告地点：唐仲英A313
报告摘要：
For a long time, terahertz (THz) radiation has been of great interest to scientific community because of its spectroscopic and imaging applications based on its unique properties, such as the capabilities to penetrate many materials which are opaque in other frequency range (e.g. packaging, plastics,paints and semiconductors), and spectroscopic signatures of many important materials. In this talk, I would like to discuss the latest development of tunable THz quantum cascade (QC) lasers based on a "wire-laser" concept. A continuously tunable THz wire QC laser, which comprises a QC laser with deep sub-wavelength transverse dimensions, and a movable side object,termed as "plunger", is demonstrated. Integrating a MEMS plunger, a continuous tuning range of 330GHz (8.6%) centered at ~3.85 THz was achieved.
As an addition of the talk, I would like to briefly discuss the development of quantum dot LED technology and some other on-going researches.
报告人简介：
Qi Qin joined ONE Lab at MIT in 2013 as a postdoctoral associate after briefly working in venture capital and IT industry. His doctoral work at Prof.Qing Hu's lab at MIT involved development of tunable terahertz quantum cascade lasers with the world-record tuning range. Prior to that, he earned his MS degree from China, working on gallium nitride LEDs and HEMTs. At ONE Lab, his work focuses on quantum dot LEDs, solar cells, bio-sensors, and optics-related applications. Apart from his research, he enjoys entrepreneurial activities, sports, music, and cooking.