Lecture On: Phononic Frequency Combs – A New Addition to Photonics, MEMS, Quantum Information Science

DEPARTMENT OF INSTRUMENTATION AND APPLIED PHYSICS

INDIAN INSTITUTE OF SCIENCE

BANGALORE – 560 012

Cordially invites you for a short lecture on

                                          “Phononic Frequency Combs – A New Addition to Photonics, MEMS, Quantum Information Science”                                                                     

 By

Dr. Adarsh Ganesan

postdoctoral researcher at the US

National Institute of Standards and Technology

PhD in Engineering from Cambridge University

Date:  Thursday, 16^th January 2020 

Time:    3.00 P.M 

Venue:  Lecture Hall 1, Dept. of Instrumentation and

Applied  Physics

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Abstract

Phononic frequency 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 MEMS resonators [1]. The emergence of PFC is mediated by nonlinear modal coupling. Through a series of experiments with MEMS resonators, 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 of phononic frequency combs and the broad implications to the fields of photonics and MEMS in addressing the application spaces of sensing, wireless communications, and quantum technologies.

[1] Ganesan, A., Do, C. and Seshia, A., 2017. Phononic  frequency comb via intrinsic three-wave mixing. Physical review letters, 118(3), p.033903.

Biography

• A  postdoctoral researcher at the US National Institute of Standards and Technology.
• PhD in Engineering from Cambridge University
• BE (Hons) in Electrical and Electronics Engineering from Birla Institute of Technology and Science, Pilani.
• His doctoral work on phononic frequency combs by the 2017 John Winbolt prize (Cambridge University),
• the 2017 ABTA UK doctoral researcher award (Rank 1 in Engineering Sciences),
• the 2018 APS GSNP Student Speaker Award (Finalist),
• the 2018 IET Hudswell International Research Scholarship and the 2019 BITSAA Global 30 Under 30 Award.

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ALL ARE   WELCOME

CHAIRMAN

Date/Time
Date(s) - 16/01/2020
3:00 pm - 4:15 pm

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