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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.


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Patent
01 Apr 1997
TL;DR: In this paper, a microcavity organic light emitter with reduced variation in emission spectra per change in viewing angle is described, which is a type of EL device that consists of at least a first reflective layer on the nonplanar substrate surface, a second reflective layer and an active layer having organic material capable of electroluminescence between the first and second reflective layers.
Abstract: Disclosed is a microcavity organic light emitter having reduced variation in emission spectra per change in viewing angle. In an illustrative embodiment, a microcavity EL device comprises a microcavity layer structure stacked on a symmetric, non-planar surface of a substrate. The microcavity layer structure includes at least a first reflective layer on the non-planar substrate surface, a second reflective layer and an active layer having organic material capable of electroluminescence between the first and second reflective layers. The non-planar surface may be a shallow cone, frustum, a dome-like surface, or a combination thereof.

52 citations

Journal ArticleDOI
TL;DR: In this article, a selective technique based on etching after electron-beam lithography, combined with the use of an optical microscope to enhance the spatial resolution of a time-resolved photoluminescence system, enabled the observation of single quantum dots.
Abstract: We present time-resolved optical studies of single self-assembled quantum dots. The dots were obtained by Stranski-Krastanow growth of InP on ${\mathrm{Ga}}_{0.5}{\mathrm{In}}_{0.5}\mathrm{P}.$ A selective technique based on etching after electron-beam lithography, combined with the use of an optical microscope to enhance the spatial resolution of a time-resolved photoluminescence system, enabled the observation of single quantum dots. The emission linewidth of a single InP dot is observed to be around 3 meV. The evolution of the time-resolved photoluminescence spectra was studied as a function of excitation intensity. Under intense pulsed excitation the decay is no more a simple exponential due to feeding from higher energy levels, as a result of state filling. A four-level rate equation system is successfully used to model the results.

51 citations

Journal ArticleDOI
TL;DR: Through a modal expansion model simulation in a calcium fluoride microcavity, a combination of suitable pump power, Kerr nonlinearity, and dispersion profile can lead to stable and robust octave-spanning optical frequency combs.
Abstract: Octave-spanning optical frequency combs are especially interesting in optical metrology owing to the ability of self-referencing. We report a theoretical study on the generation of octave-spanning combs in the whispering gallery modes of a microresonator. Through a modal expansion model simulation in a calcium fluoride microcavity, we show that a combination of suitable pump power, Kerr nonlinearity, and dispersion profile can lead to stable and robust octave-spanning optical frequency combs.

51 citations

Journal ArticleDOI
TL;DR: A mechanism for small-modal-volume high-Q cavities based on an anomalous uniform waveguide mode that has zero group velocity at a nonzero wave vector is proposed and demonstrated.
Abstract: We propose and demonstrate a mechanism for small-modal-volume high-Q cavities based on an anomalous uniform waveguide mode that has zero group velocity at a nonzero wave vector. In a short piece of a uniform waveguide with a specially designed cross section, light is confined longitudinally by small group-velocity propagation and transversely by a reflective cladding. The quality factor Q is greatly enhanced by the small group velocity for a set of cavity lengths that are separated by approximately pi/k0, where k0 is the longitudinal wave vector for which the group velocity is zero.

51 citations

Journal ArticleDOI
TL;DR: An optical organic semiconductor microcavity showing the strong coupling regime was prepared by spin-coating of a specific salt of the dye 1,1′-diethyl-2,2′-cyanine (PIC) forming Jaggregates.

51 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202317
202220
202152
202063
201990
201846