Dodecagonal 12-fold quasiperiodic photonic crystal DQPC microcavity lasers sustaining whispering gallery mode WGM are fabricated. Lasing characteristics of DQPC D2 microcavity lasers are obtained and compared with triangular lattice D2 photonic crystal PC lasers, and ultralow threshold is obtained. The strong WGM mode dependence on 12 nearest airholes of DQPC D2 microcavity and its fabrication ...

We have used a single quantum dot in a micropost microcavity to generate triggered single photons. Coupling between the quantum-dot dipole and the con8ned microcavity mode leads to a large enhancement of the spontaneous emission rate. This, in turn, leads to e!cient coupling of the emitted photons into a single traveling-wave mode. Optimization of the microcavity design should lead to nearly un...

We compute the interaction of a sodium vapor with static magnetic field ranging from 0 up to 1 Tesla, which allows obtain behavior all Zeeman transitions as function for any polarization incident laser radiation: $\pi, \sigma^\pm$. use these results combined Fabry-P\'erot microcavity model describe transmitted and reflected signal confined in nanometric-thin cell. This us present first time hig...

A liquid-crystal-infiltrated microcavity structure is proposed as a variable-refractive-index material. It has the advantages over previously considered nanostructured materials of having a larger phase-angle change and lower driving voltage. Two-dimensional liquid-crystal director and finite-difference time-domain optical simulations are used to select liquid crystal material parameters and op...

Thin films of J-aggregate cyanine dyes deposited by layer-bylayer (LBL) assembly exhibit exciton-polariton dynamics when incorporated in an optical microcavity. Such LBL, J-aggregate thin films can be precisely deposited in a specific location in an optical microcavity, enabling the development of previously unachievable optoelectronic devices, as for example, the recently demonstrated resonant...

The spectrum of the light emitted by a microcavity OLED is strongly time dependent on nanosecond timescale after switch-on pump mechanism. This one reason why convincing confirmation laser operation in such device difficult. simple theory here presented helpful interpreting observed light-emission behavior. One important finding that occurrence optical narrow Lorentzian top spontaneous-emission...

In this thesis, I report on the exploration of non-linear optical phenomena in silica whispering gallery mode (WGM) microcavities. In particular, optomechanical interactions, and the generation of optical frequency combs due to the Kerr non-linearity of silica are investigated. Radiation pressure couples the optical field stored in a microcavity to mechanical degrees of freedom of its boundary....