We demonstrate single-mode lasing at telecommunication wavelengths from a circular nanocavity employing a radial Bragg reflector. Ultrasmall modal volumes and submilliwatt pump thresholds level are observed for lasers with InGaAsP quantum well active membrane. The electromagnetic field is shown to be tightly confined within the 300 nm central pillar of the cavity. The quality factors of the res...

The authors propose a nanoplasmonic structure based on metal–insulator–metal (MIM) waveguides which consists of 3 db power splitter and side-coupled nanocavity placed between its two output ports. proposed is analysed by the resonant theory dispersion relation. Transmission spectra presented device are also extracted using finite difference time domain method. Numerical simulations demonstrate ...

We propose and experimentally demonstrate a photonic crystal nanocavity with multiple resonances that can be tuned nearly independently. The design is composed of two orthogonal intersecting nanobeam cavities. Experimentally, we measure cavity quality factors of 6600 and 1000 for resonances separated by 382 nm; we measure a maximum separation between resonances of 506 nm. These structures are p...

Monolithic integration of photonic crystal lasers and waveguides is proposed using quantum well intermixing. Coupling between a double-heterostructure nanocavity and a regular single-line-defect waveguide is optimized to have a high coupling efficiency (93%) and a high quality factor (6.8× 103) without fine-tuning of the lattice. The design is completed with a waveguide exit of robust direction...

Optical nanocavities formed by defects in a two-dimensional photonic crystal (PC) slab can simultaneously realize very small modal volume and an ultrahigh quality factor (Q). Therefore, such are expected to be useful for the enhancement of light–matter interaction slowdown light devices. In past, it was difficult design PC hole pattern that makes sufficient use high degree structural freedom th...

In this work the sensitivity of Bloch Surface Waves to laser-induced anisotropy azo-polymeric thin layers is expe rimentally shown . The nanoscale reshaping films via thermal-Scanning Probe Lithography allows couple light circular photonic nanocavities, tailoring on-demand resonant BSW confined within nanocavity.

Silicon photonic modulators rely on the plasma dispersion effect by free-carrier injection or depletion, which can only induce moderate refractive index perturbation. Therefore, the size and energy efficiency of silicon photonic modulators are ultimately limited as they are also subject to the diffraction limit. Here we report an ultracompact electro-optic modulator with total device footprint ...