We present nonlinear optical four-wave mixing in a silicon nanodisk dimer metasurface. Under the oblique incident plane waves, designed metasurface exhibits multiresonant feature with simultaneous excitations of three quasi-bound states continuum (BIC). Through employing these quasi-BICs maximizing electric field energy at input bump wavelengths, significant enhancement third-order processes in...

All-optical plasmonic switches based on a novel coupled nano-disk cavity configuration containing nonlinear material are proposed and numerically investigated. The finite difference time domain simulation results reveal that the single-disk plasmonic structure can operate as an “on– off” switch with the presence/absence of pumping light. We also demonstrate that the proposed T-shaped plasmonic ...

The picosecond carrier dynamics in a closely packed Si-nanodisk (Si-ND) array with ultrathin potential barrier fabricated by neutral beam etching using bio-nano-templates was investigated by time-resolved photoluminescence (PL). The PL decay curves were analyzed as a function of photon energy by the global fitting method. We show three spectral components with different decay times, where the s...

The interaction of a magnetic vortex with a rotating magnetic field causes the nucleation of a vortexantivortex pair leading to a vortex polarity switching. The key point of this process is the creation of a dip, which can be interpreted as a nonlinear resonance in the system of certain magnon modes with nonlinear coupling. The usually observed single-dip structure is a particular case of a mul...

A key component for optical on-chip communication is an efficient light source. However, to enable low energy per bit and local integration with Si CMOS, devices need be further scaled down. In this work, we fabricate micro- nanolasers of different shapes in InP by direct wafer bonding on Si. Metal-clad cavities have been proposed as means scale dimensions beyond the diffraction limit exploitin...