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May 26 – 31, 2024
Western University
America/Toronto timezone
Welcome to the 2024 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2024!

(G) The van der Pol-Duffing Oscillator and its Application to Gain-driven Light-matter Interaction

May 28, 2024, 11:15 AM
15m
PAB Rm 106 (cap. 96) (Physics & Astronomy Bldg., Western U. )

PAB Rm 106 (cap. 96)

Physics & Astronomy Bldg., Western U.

Oral not-in-competition (Graduate Student) / Orale non-compétitive (Étudiant(e) du 2e ou 3e cycle) Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) (DCMMP) T1-7 Light Matter Interaction | Interaction lumière-matière (DPMCM)

Speaker

Chunlei Zhang (University of Manitoba)

Description

We report the observation of the frequency nonlinearity during amplitude stabilization of the gain-embedded resonator which was previously interpreted as a van der Pol oscillator. Our investigation reveals that this specific nonlinear oscillationn is more accurately described by the van der Pol-Duffing oscillator model. We initially observed this phenomenon in a gain-embedded circuit oscillator and noted bistable behaviour upon coupling with a damped resonance. Then, in a gain-embedded cavity, we experimentally verified this nonlinear phenomenon. The bistable behavior of the cavity-magnonic polariton is well-fitted by this van der Pol-Duffing model.

Keyword-1 nonlinear oscillator
Keyword-2 cavity-magnonic polariton

Primary author

Chunlei Zhang (University of Manitoba)

Co-authors

Mun Kim Prof. Jianbo Wang (Lanzhou University) Can-Ming Hu (University of Manitoba)

Presentation materials

There are no materials yet.