IMNS Lunchtime Seminar: Adarsh Venkataraman Ganesan


SMC Conference Room


Wednesday, August 14, 2019 - 13:00 to 14:00

Adarsh Venkataraman Ganesan

Phononic Frequency Combs - A New Addition to Photonics and MEMS

US National Institute of Standards and Technology


Phononic frequency combs (PFC) are the mechanical analogs of celebrated photonic frequency combs. These represent a new nonlinear phenomenon in the well researched physical domain of MEMS resonators [1].

The emergence of PFC is mediated by nonliner modal coupling. Through a series of experiments with micromechanical 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.

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, communications, frequency metrology and molecular spectroscopy.


Adarsh Ganesan is currently a postdoctoral researcher at the US National Institute of Standards and Technology. He holds his PhD from Cambridge University and BE (Hons) from Birla Institute of Technology and Scienc, Pilani.

Adarsh has been recognised for his doctoral work on phononic frequency combs by the 2017 John Winbolt prize (University of Cambridge), 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.

  1. Ganeson, A., Do, C and Seshia, A., 2017. Phononic frequency comb via intrinsic three-wave mixing. Physical Review Letters, 118(3), p.033903
Adarsh Venkataraman Ganesan
Adarsh Venkataraman Ganesan

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