Phononic Frequency Combs
Speaker: Dr. Adarsh Venkataraman Ganesan
Affiliation: National Institute of Standards and Technology
Abstract:
Phononic frequency combs (PFC) represent a new nonlinear phenomenon in the physical domain of micromechanical resonators [1]. The emergence of PFC is mediated by nonlinear 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. Potential applications of PFC include high-precision sensing, spread spectrum information processing and other applications in timing and frequency control. My talk will describe the physics of phononic frequency combs and the implications for their potential applications. In addition, I will also present the possibilities for the integration of phononic frequency combs with optical systems.
[1] Ganesan, A., Do, C. and Seshia, A., 2017. Phononic frequency comb via intrinsic three-wave mixing. PRL 118(3), p.033903.
Biography:
Dr. Adarsh Venkataraman Ganesan is currently a postdoctoral researcher at the US National Institute of Standards and Technology. He holds his PhD from Cambridge University and B.E. (Hons.) from Birla Institute of Technology and Science, Pilani. Adarsh has been recognized 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), and the 2018 IET Hudswell International Research Scholarship.
For more information, contact Prof. Chee Wei Wong (cheewei.wong@ucla.edu)
Date/Time:
Date(s) - May 14, 2019
12:00 pm - 1:15 pm
Location:
EE-IV Shannon Room #54-134
420 Westwood Plaza - 5th Flr., Los Angeles CA 90095