Results 41 to 50 of about 23,896 (237)

High-occupancy effects and stimulation phenomena in semiconductor microcavities [PDF]

open access: yes, 2002
This paper describes recent work on high-occupancy effects in semiconductor microcavities, with emphasis on the variety of new physics and the potential for applications that has been demonstrated recently. It is shown that the ability to manipulate both
Butte, R.   +4 more
core   +1 more source

Polariton Condensation and Lasing

open access: yes, 2012
The similarities and differences between polariton condensation in microcavities and standard lasing in a semiconductor cavity structure are reviewed. The recent experiments on "photon condensation" are also reviewed.Comment: 23 pages, 6 figures; Based ...
A Amo   +27 more
core   +1 more source

Designing and understanding directional emission from spiral microlasers [PDF]

open access: yes, 2008
The availability of microlasers with highly directional far-field characteristics is crucial for future applications. To this end we study the far-field emission of active microcavities with spiral shape using the Schroedinger-Bloch model.
Audet   +13 more
core   +1 more source

Ultralow-threshold microcavity Raman laser on a microelectronic chip [PDF]

open access: yes, 2004
Using ultrahigh-Q toroid microcavities on a chip, we demonstrate a monolithic microcavity Raman laser. Cavity photon lifetimes in excess of 100 ns combined with mode volumes typically of less than 1000 µm^3 significantly reduce the threshold for ...
Armani, D. K.   +3 more
core   +1 more source

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

open access: yesLethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido   +4 more
wiley   +1 more source

Abnormal high-$Q$ modes of coupled stadium-shaped microcavities

open access: yes, 2014
It is well known that the strongly deformed microcavity with fully chaotic ray dynamics cannot support high-Q modes due to its fast chaotic diffusion to the critical line of refractive emission.
Choi, Muhan   +5 more
core   +1 more source

Tunable cavity coupling of the zero phonon line of a nitrogen-vacancy defect in diamond

open access: yesNew Journal of Physics, 2015
We demonstrate the tunable enhancement of the zero phonon line of a single nitrogen-vacancy colour centre in diamond at cryogenic temperature. An open cavity fabricated using focused ion beam milling provides mode volumes as small as 1.24 μ m ^3 (4.7 ...
S Johnson   +10 more
doaj   +1 more source

Analytical and numerical design of a hybrid Fabry–Perot plano-concave microcavity for hexagonal boron nitride

open access: yesBeilstein Journal of Nanotechnology, 2022
An efficient single-photon emitter (SPE) should emit photons at a high rate into a well-defined spatio-temporal mode along with an accessible numerical aperture (NA) to increase the light extraction efficiency that is required for effective coupling into
Felipe Ortiz-Huerta   +1 more
doaj   +1 more source

Self-Assembled Conjugated Organic/Polymer Microcavities for Optical Resonators and Lasers [PDF]

open access: yes, 2017
Optical microcavities play an important role for the next-generation light technology. Recently, we succeeded in fabricating spherical microcavities from π-conjugated polymers (CPs) by simple self-assembly process (Fig.
Yamamoto, Yohei
core  

Radiative corrections to the excitonic molecule state in GaAs microcavities

open access: yes, 2003
The optical properties of excitonic molecules (XXs) in GaAs-based quantum well microcavities (MCs) are studied, both theoretically and experimentally. We show that the radiative corrections to the XX state, the Lamb shift $\Delta^{\rm MC}_{\rm XX}$ and ...
A. Armitage   +37 more
core   +1 more source

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