报告题目：Semiconductor quantum dots and quantum-dot based lasers and microlasers
报告人：Alexei Zhukov
报告时间：2023.10.19 13：30-14：30
报告地点：实验北楼118
报告摘要：
Microdisk lasers are considered as a promising optical source for the future inter-chip / intra-chip optical data transmission systems. Such lasers are characterized by small footprint, lateral light emission, rather simple structure and manufacturing process (no thick distributed Bragg reflectors, oxidation and passivation steps are required). Microdisk lasers with quantum dot based active region, which are the subject of the talk, have proved their capability of operating at elevated temperatures (up to 110oC in continuous-wave regime). Experiments on small-signal direct modulation have shown that the maximum modulation frequency is presently limited by thermal effects and RC parasites at 7~8 GHz. Data transmission with the bitrates of 10 GB/s has been demonstrated. Quantum dot microdisk lasers can be made of III-V laser heterostructures monolithically grown on silicon substrates. The possibility of hybrid integration of QD microdisk arrays with silicon using the gold thermocompression bonding process is shown as well. These open opportunity for the integration of III-V light-emitting components with Si-based electronic integrated circuits.
报告人简介：
Prof. Alexei Zhukov was born in Leningrad, USSR, in 1968. He graduated as an optical engineer from Leningrad Electrical Engineering Institute in 1992 and jointed Ioffe Physical-Technical Institute of the Russian Academy of Sciences, St. Petersburg, Russia. He received the candidate of science degree in 1996 and the doctor of science degree in 2002 from Ioffe institute. In 2008 he was elected to the Russian Academy of Sciences (RAS) as a correspondent-member. He has authored and co-authored more than 900 publications including 12 books and review articles, as well as 5 patents. His H-index is 52. He is known for his studies of epitaxial growth of self-organized quantum dots including demonstration of the first quantum-dot based laser. His current interests are in AlGaInAs heterostructures, diode lasers and micro lasers, and low-dimensional structures. He teaches courses on semiconductor lasers, physics and technology of semiconductor nanostructures in several Russian universities. He is currently a head of the department of physics and academic advisor of Int. lab of quantum optoelectronics at HSE University - St. Petersburg, Russia. He is also with the Ioffe institute at the lab of semiconductor heterostructure physics.