报告题目

PhononicFrequency Combs

报 告 人

Dr.AdarshGanesan

US National Institute of Standards and Technology

报告地点

https://join.skype.com/uPDNuRIH5OKn

报告时间

2022年3月16日(星期三) 10:00-11:00

联 系 人

杨起帆(Tel: 62758530)

报告摘要

Phononicfrequency combs (PFC) are the mechanical analogs of celebrated photonic frequency combs. These represent a newly documented physical phenomenon in the well researched physical domain of mechanical resonators [1]. The emergence of PFC is mediated by nonlinear modal coupling. Through a series of experiments with mechanical devices, various features of PFC have now been identified. These include drive parameters for comb operation, hysteresis for comb spectrum tailoring and growth, saturation and attenuation mechanisms of combs, and nonlinear sensitivity to physical perturbations. My talk will describe the physics ofphononicfrequency combs and will emphasize how these combs could be foundational to quantum information science. In that respect, I will also present our first conceptual demonstration of active-cavityoptomechanics. The future work will be focused on the fundamental contributions leading to the convergence ofphononicfrequency combs and quantum information science.

报告人简介

Adarsh Ganesan is currently a postdoctoral researcher at the US National Institute of Standards and Technology. He holds his Ph.D. in Engineering from Cambridge University and BE (Hons) in Electrical and Electronics Engineering from Birla Institute of Technology and Science (BITS),Pilani. Adarsh has been recognized for his doctoral work onphononicfrequency combs by the 2017 JohnWinboltprize (Cambridge University), 2017 UK doctoral researcher award, 2018 APS GSNP Student Speaker Award, 2018 IETHudswellInternational Research Scholarship and 2019 BITS Alumni Association Global 30 Under 30 Award.