Nonlinear dynamics of two coupled nano-electromechanical resonators

Nonlinear dynamics and chaos in two coupled nanomechanical resonators

Two elastically coupled nanomechanical resonators driven independently near their resonance frequencies show intricate nonlinear dynamics. The dynamics provide a scheme for realizing a nanomechanical system with tunable frequency and nonlinear properties. For large vibration amplitudes, the system develops spontaneous oscillations of amplitude modulation that also show period-doubling transitio...

Nonlinear Dynamics of Nanomechanical Resonators

In the last decade we have witnessed exciting technological advances in the fabrication and control of microelectromechanical and nanoelectromechanical systems (MEMS&NEMS) [16, 19, 26, 54, 55]. Such systems are being developed for a host of nanotechnological applications, such as highly sensitive mass [25, 34, 67], spin [56], and charge detectors [17, 18], as well as for basic research in the m...

Ab initio description of nonlinear dynamics of coupled microdisk resonators with application to self-trapping dynamics

Whispering gallery modes (WGMs) are optical excitations that exist in axially symmetrical optical resonators. In the geometric optic framework they can be described as waves propagating at large incidence angles along the surface of the resonator and trapped in an optical potential arising due to total internal reflection. Due to high Q factors and small mode volumes of WGMs, one should expect ...

Two-curve-shaped biosensor using photonic crystal nano-ring resonators

We design a novel nano-ring resonator using two-dimensional photonic crystal (2D-PhC), for bio-sensing applications. The structure of biosensor is created by two-curve-shaped ring resonator which sandwiched by two waveguides. These are configured by removing one row of air holes. The refractive index of sensing hole is changed by binding an analyte. Hence, intensity of the transmission spectrum...

Nonlinear Dynamics of Nanomechanical and Micromechanical Resonators