Journal ArticleDOI
Analysis of semiconductor microcavity lasers using rate equations
Gunnar Björk,Yoshihisa Yamamoto +1 more
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TLDR
In this paper, the rate equations for a microcavity semiconductor laser are solved and the steady-state behavior of the laser and some of its dynamic characteristics are investigated, and it is shown that by manipulating the mode density and the spontaneous decay rates of the cavity modes, the threshold gain can be decreased and the modulation speed can be improved.Abstract:
The rate equations for a microcavity semiconductor laser are solved and the steady-state behavior of the laser and some of its dynamic characteristics are investigated. It is shown that by manipulating the mode density and the spontaneous decay rates of the cavity modes, the threshold gain can be decreased and the modulation speed can be improved. However, in order to fully exploit the possibilities which the modification of the spontaneous decay opens up, the active material volume in the cavity must be smaller than a certain value. Threshold current using different definitions, population inversion factor, L-I curves, linewidth, and modulation response are discussed. >read more
Citations
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Journal ArticleDOI
Lasing in microdisks with an active region based on lattice-matched InP/AlInAs nanostructures
D. V. Lebedev,Alexander Mintairov,Alexander Mintairov,A. S. Vlasov,V. Yu. Davydov,M. M. Kulagina,S. I. Troshkov,Andrey Bogdanov,Andrey Bogdanov,Alexander N. Smirnov,Agnieszka Gocalinska,Gediminas Juska,Emanuele Pelucchi,J. Kapaldo,Sergei Rouvimov,James L. Merz +15 more
TL;DR: In this article, the emissivity of unstrained quantum-dimensional InP/AlInAs nanostructures and their lasing properties in microdisk cavities prepared by wet etching have been studied.
Journal ArticleDOI
Compact photonic crystal disk cavity optimized using the gentle confinement method and boundary design
TL;DR: In this article, a photonic crystal cavity aimed at applications with strict area limitations is presented, where the boundary region is considered as a Fabry?P?rot resonator.
Journal ArticleDOI
Laser diode side-pumped Nd:YVO_4 microchip laser with film-etched microcavity mirrors
TL;DR: The side-pumping scheme is applied for improving the disturbance-resisting ability of the microchip laser and numerical simulations based on Fresnel-Kirchhoff diffraction theory are conducted to ensure unicity in the frequency of the laser output.
Journal ArticleDOI
Gain-dependent Purcell enhancement, breakdown of Einstein's relations, and superradiance in nanolasers
TL;DR: In this paper , a simple yet rigorous picture of radiative transitions in single-mode nanolasers that accounts for polarization correlations was developed, and the collective behavior of emitters modifies the photonic density of states leading to gain-dependent Purcell enhancement of spontaneous emission.
Book ChapterDOI
Physics and applications of semiconductor nanowire lasers
TL;DR: The use of nanowires as an integrated cavity, waveguide and gain material has been studied for on-chip photonics, integrated optoelectronic circuitry, post-von Neumann computing and biological applications as discussed by the authors.
References
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Journal ArticleDOI
Inhibited Spontaneous Emission
TL;DR: The radiative properties of an atom in a cavity differ fundamentally from the atom's radiative property in free space as mentioned in this paper. But the cavity causes slight shifts in the energies of the atom, analogous to radiative shifts.
Journal ArticleDOI
Observation of cavity-enhanced single-atom spontaneous emission
TL;DR: It has been observed that the spontaneous-emission lifetime of Rydberg atoms is shortened by a large ratio when these atoms are crossing a high-Q$ superconducting cavity tuned to resonance with a millimeter-wave transition between adjacent Ryd Berg states as mentioned in this paper.
Journal ArticleDOI
Inhibited spontaneous emission by a Rydberg atom.
TL;DR: Spontaneous radiation by an atom in a Rydberg state is inhibited by use of parallel conducting planes to eliminate the vacuum modes at the transition frequency.