Optical microcavity

About: Optical microcavity is a research topic. Over the lifetime, 2599 publications have been published within this topic receiving 72125 citations. The topic is also known as: optical microcavities.

On-chip quantum optics with quantum dot microcavities.

Abstract: A novel concept for on-chip quantum optics using an internal electrically pumped microlaser is presented. The microlaser resonantly excites a quantum dot microcavity system operating in the weak coupling regime of cavity quantum electrodynamics. This work presents the first on-chip application of quantum dot microlasers, and also opens up new avenues for the integration of individual microcavity structures into larger photonic networks.

Bose-Einstein condensates with cavity-mediated spin-orbit coupling.

Abstract: We propose a novel scheme to generate the spin-orbit coupling for a condensate placed inside an optical cavity by using a standing wave and a traveling wave. It is shown that the interplay of the laser lights and the cavity gives rise to rich quantum phases. Our scheme also generates a large synthetic magnetic field for the dressed spin state, which may facilitate the study of the quantum Hall effect in ultracold atomic gases.

Theory-inspired development of new nonlinear optical materials and their integration into silicon photonic circuits and devices

Abstract: Theoretical guidance based on correlated real-time, time-dependent density functional theory (RTTDDFT) quantum mechanical and pseudo-atomistic Monte Carlo molecular dynamical (PAMCMD) statistical mechanical computational methods have led to dramatic (exceeding a Moore’s rate) improvement in molecular and macroscopic optical nonlinearity. New materials permit optical signal processing at terahertz rates using millivolts electrical and milliwatt optical control powers. Theory has also provided insight into the optimization of optical loss, thermal stability, and photochemical stability. The advent of silicon photonics for telecommunication applications has raised the prospect of achieving high density integration of photonic circuitry and even the chipscale integration of photonics and electronics. Such integration promises significant improvement in size, weight, and power (SWAP) together with dramatic improvements in performance, cost, and reliability. We demonstrate the integration of organic nonlinear optical materials into 25–150 × 200 nm slots in silicon photonic ring microresonator and stripline device structures. Slotted waveguides permit nearly lossless transition of light from 450 × 200 nm silicon photonic waveguides into the organic nonlinear optical material filled slots for active control of light. These device structures permit dramatic enhancement of electrical and optical control fields amplifying the already large nonlinearities of organic pi electron materials. Such amplification permits observation of new phenomena such as low optical power optical rectification, difference frequency generation, and all-optical signal processing.

Coupled-resonator optical waveguides doped with nanocrystals.

Abstract: Microsphere resonators doped with semiconductor nanocrystals are explored as building blocks for coupled-resonator optical waveguides (CROWs). The evolution of individual cavity modes into coherently coupled waveguide modes is studied using polarization-sensitive microphotoluminescence spectroscopy. To demonstrate the formation of multisphere photon states, we use a bent linear array of microresonators and probe the properties of the cavity photon field by the spatially and spectrally resolved measurement of the nanocrystal emission. Photon mode coupling is evidenced by the observed mode splitting and emission intensity distributions along the CROW structure.