Optical microcavities

  title={Optical microcavities},
  author={Kerry J. Vahala},
Optical microcavities confine light to small volumes by resonant recirculation. Devices based on optical microcavities are already indispensable for a wide range of applications and studies. For example, microcavities made of active III–V semiconductor materials control laser emission spectra to enable long-distance transmission of data over optical fibres; they also ensure narrow spot-size laser read/write beams in CD and DVD players. In quantum optical devices, microcavities can coax atoms or… 

Optical Microcavities of Spiral Shape: From Quantum Chaos to Directed Laser Emission

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Low Threshold Lasing in Gallium Nitride Based Microcavities

Optical microcavities confine light to small volumes by resonant recirculation. Devices based on optical microcavities have become indispensable in modern optics, finding applications not only in

Optical microcavity: from fundamental physics to functional photonics devices

Optical microcavities have attracted strong research interests,for their unique property of confining photons for a long time in small volumes,which significantly enhances light–matter

On the developments and applications of optical microcavities: an overview

An overview of the development and application of optical microcavities and a pedagogical introduction to the interaction between a two-level system and a quantized electromagnetic field in the cavity based on the so-called Jaynes-Cummings model.

Laser Reflow Technology on High-Q Toroidal Microcavity

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Optical Mode Properties of 2-D Deformed Microcavities

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Metasurface-Stabilized Optical Microcavities

We demonstrate stable optical microcavities by counteracting the phase evolution of the cavity modes using an amorphous silicon metasurface as one of the two cavity end mirrors. Careful design allows

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Research into microcavity lasers demonstrates new achievements both in the technology and in the associated physical effects and applications. Melting and cooling of the disk edge boosts the

On-chip ultrahigh-Q microcavities for highly unidirectional emission

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Optical Processes in Microcavities

Studies of optical microresonators with dimensions between 0.1 and 10 microns are now under way in a wide variety of condensed matter systems. Ideally, one can isolate a single mode of the optical

Quantum boxes as active probes for photonic microstructures: The pillar microcavity case

A GaAs/AlAs planar cavity containing a collection of InAs quantum boxes in its core region has been grown in a single step by molecular beam epitaxy, and processed by electron‐beam lithography and

Whispering-gallery mode microdisk lasers

A new microlaser design based on the high‐reflectivity whispering‐gallery modes around the edge of a thin semiconductor microdisk is described and initial experimental results are presented. Optical

Ultralow-threshold Raman laser using a spherical dielectric microcavity

This work demonstrates a micrometre-scale, nonlinear Raman source that has a highly efficient pump–signal conversion (higher than 35%) and pump thresholds nearly 1,000 times lower than shown before, which represents a route to compact, ultralow-threshold sources for numerous wavelength bands that are usually difficult to access.

Quantum Dot Lasers Using High-Q Microdisk Cavities

We report experimental observation of optically-pumped continuous-wave lasing from self-assembled quantum dots (QDs) embedded in high-quality factor (Q) microdisk laser structures. For large diameter

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The generation of cavity solitons in vertical cavity semiconductor microresonators that are electrically pumped above transparency but slightly below lasing threshold is demonstrated and it is shown that the generated optical spots can be written, erased and manipulated as objects independent of each other and of the boundary.

Enhanced Spontaneous Emission by Quantum Boxes in a Monolithic Optical Microcavity

Semiconductor quantum boxes (QB's) are well suited to cavity quantum electrodynamic experiments in the solid state because of their sharp emission. We study by time-resolved photoluminescence InAs

Experimental demonstration of a high quality factor photonic crystal microcavity

Subthreshold measurements of a photonic crystal (PC) microcavity laser operating at 1.3 μm show a linewidth of 0.10 nm, corresponding to a quality factor (Q)∼1.3×104. The PC microcavity mode is a

Ultra-high-Q toroid microcavity on a chip

This work demonstrates a process for producing silica toroid-shaped microresonators-on-a-chip with Q factors in excess of 100 million using a combination of lithography, dry etching and a selective reflow process, representing an improvement of nearly four orders of magnitude over previous chip-based resonators.

Spontaneous lifetime control of quantum dot emitters in apertured microcavities

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