WebJul 1, 2024 · Phononic frequency combs are produced via nonlinear interactions between a driven phonon mode and one or more additional parametrically excited modes 20, 21. … WebThe generation of phononic frequency combs in the mechanical resonator described in [7,9,10,13] and shown schematically in Fig. 1a involves two steps. First, mode 1, which is a length extensional vibration mode, excites mode 2, which is a flexural vibration mode, when increasing the drive amplitude ( above a
Phononic frequency comb via three-mode parametric …
WebJun 2, 2024 · As an analog of the optical frequency comb, the phononic frequency comb has been demonstrated in mechanical resonators recently. In this Letter, we generate the … WebApr 5, 2024 · The Artemis II flight test will be NASA’s first mission with the crew and will pave the way to land the first woman and next man on the Moon on Artemis III. Building on those early missions, NASA’s Artemis program will return humans to the Moon for long-term exploration and future missions to worlds beyond, including Mars. first theater sustainment
Phononic frequency combs in microelectromechanical systems
WebThe phononic frequency combs is mediated by nonlinear coupling between a primary driven mode and one or more parametrically excited internal modes. We provide experimental evidence for the formation of such phononic frequency combs in systems comprising of 2 or more coupled modes, with results qualitatively consistent with previous numerical ... WebJan 13, 2024 · Phononic Frequency Combs For Engineering MEMS/NEMS Devices With Tunable Sensitivity Published January 13, 2024 Author (s) Adarsh V. Ganesan, Ashwin Seshia, Jason J. Gorman Abstract Over the past two decades, MEMS resonators have received considerable attention for physical, chemical and biological sensing applications. WebMay 24, 2024 · When the resonator is pumped with a single tone at a frequency close to the sum of the two mechanical modes, phononic frequency combs are generated close to each mechanical mode, under certain and repeatable pump frequency and power conditions. The phononic combs consist of a set of equally-distanced phase-coherent spectral lines; we ... camper van hire crawley