Resonant Cavity
Mostrando 13-20 de 20 artigos, teses e dissertações.
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13. Laser de faces clivadas com regiões ativas nanoestruturadas bombeados por injeção eletronica / Cleaved face laser with nanostructured active region pumped by electronic injection
This masters dissertation presents the theoretical studies on the calculation of optical gain in nanostructures based on the InGaAs/InGaAsP/InP system. From the time dependent perturbation theory, where perturbation is the interaction of an electromagnetic wave with matter, and the Kanes theory for semiconductors band structure, relating the transition m
Publicado em: 2006
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14. Cooling many particles to very low temperatures
In a recent paper [Beige, Knight, and Vitiello, quant-ph/0404160], we showed that a large number N of particles can be cooled very efficiently. The particles should be excited by red-detuned laser fields while coupling to the quantized field mode inside a resonant and leaky optical cavity. When the coupling constants are for all particles the same, a collect
Brazilian Journal of Physics. Publicado em: 2005-06
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15. Exciton polariton emission from a resonantly excited GaAs microcavity
Coherent emission efficiency in a 100Å GaAs SQW microcavity was enhanced one order when pumped resonantly at 10 K, compared to the off-resonant excitation. The usual kink observed in the exciton emission linewidth as well as in the emission intensity in relation to the pump power, changes smoothly instead of the usual abrupt kink observed in the off-resonan
Brazilian Journal of Physics. Publicado em: 2004-12
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16. Estudo do sistema de transdução paramétrica para detectores de ondas gravitacionais / Study of parametric transduction system for gravitational wave detectors
The search for gravity waves began in 60s with Weber. After 40 years we still dont have any experimental evidences of its existence. In spite of this, many research groups around the world are still working in this search. The possibility of detection of this kind of wave will open a new window to study the universe and that is a strong reason to justify all
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/09/2003
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17. Estudo de laseres semicondutores de cavidades ressonantes não convencionais obtidas por plasma seco
A comprehensive treatment of unconventional micro-cavity lasers is presented. We explore all aspects of the development of these devices, covering from device fabrication, modeling, optimization and damage evaluation of plasma etching techniques, to device characterization. Great emphasis is placed on the spatial ad spectral characteristics of laser emission
Publicado em: 2001
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18. Mistura de ondas ressonante em absorvedores saturaveis
A study of resonant interactions of two or more waves coupled through population modulation in a saturable absorber (SA) is presented. In the case ot two strong, non collinear waves at equal frequencies, the population in the SA is spatially-modulated and the incident waves are scattered into the various orders of the population grating. A non perturbative r
Publicado em: 1984
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19. g-Factor of electron centered in symmetric cavity
The cyclotron frequency of an electron localized in the center of a cylindrical microwave cavity differs slightly from that in free space. To see this, the system is modeled by a series resonant lc circuit for the cyclotron motion connected across the center of a section of two-wire transmission line (the cavity). When the transmission line is infinitely lon
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20. Quantum optical implementation of Grover's algorithm
We present a scheme for a quantum optical implementation of Grover's algorithm based on resonant atomic interactions with classical fields and dispersive couplings with quantized cavity fields. The proposed scheme depends on preparation of entangled states and is within current state-of-the-art technology.
National Academy of Sciences.