CANCELLED: Phononic Frequency Combs – A New Addition to Photonics, MEMS, Quantum Information Science and Material Nanoscience

Speaker: Adarsh Ganesan, US National Institute of Standards and Technology

When: March 18, 2020 (Wed), 02:30PM to 04:00PM (add to my calendar)
Location: SCI 328
Hosted by: Christopher Laumann

This event is part of the Condensed Matter Theory Seminar Series.

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 how these could be foundational to the fields of photonics, MEMS, quantum information science, and material nanoscience.

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