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Oscillatory acoustic phonon relaxation of excitons in quantum dot molecules
Juan E. Rolon, Kushal C. Wijesundara, Sergio E. Ulloa, Allan S. Bracker, Daniel Gammon, Eric A. Stinaff
We study electrically tunable self-assembled InAs quantum dot molecules through photoluminescence (PL) and time-resolved PL measurements. For the model we assume quantum dots with cylindrical symmetry, for which the confinement potentials have been modeled as narrow quantum wells in the growth and ... [J. Opt. Soc. Am. B 29, A146-A153 (2012)]
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Fundamental optical processes in semiconductors: introduction to the feature issue
Frank Jahnke, Ted Norris, Hailin Wang
[J. Opt. Soc. Am. B 29, FOPS1-FOPS1 (2012)]
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Observation of a stronger-than-adiabatic change of light trapped in an ultrafast switched GaAs-AlAs microcavity
Philip J. Harding, Huib J. Bakker, Alex Hartsuiker, Julien Claudon, Allard P. Mosk, Jean-Michel Gérard, Willem L. Vos
We study the time-resolved reflectivity spectrum of a switched planar GaAs-AlAs microcavity. Between 5 and 40 ps after the switching (pump) pulse, we observe a strong excess probe reflectivity and a change of the frequency of light trapped in the cavity up to 5 linewidths away from the cavity ... [J. Opt. Soc. Am. B 29, A1-A5 (2012)]
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Hybrid structures of magnetic semiconductors and plasmonic crystals: a novel concept for magneto-optical devices [Invited]
Ilya A. Akimov, Vladimir I. Belotelov, Alexey V. Scherbakov, Martin Pohl, Andrey N. Kalish, Alexey S. Salasyuk, Michael Bombeck, Christian Brüggemann, Andrey V. Akimov, Roslan I. Dzhioev, Vladimir L. Korenev, Yuri G. Kusrayev, Victor F. Sapega, Vyacheslav A. Kotov, Dmitri R. Yakovlev, Anatoly K. Zvezdin, Manfred Bayer
We propose here to combine magnetic semiconductors and plasmonic crystals to obtain a new class of devices, in which magneto-optical effects are dramatically enhanced. So far we have studied the two building blocks separately, and we demonstrate here features of these systems that make them ... [J. Opt. Soc. Am. B 29, A103-A118 (2012)]
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Persistent optical nuclear spin narrowing in a singly charged InAs quantum dot
Bo Sun, Wang Yao, Xiaodong Xu, Allan S. Bracker, Daniel Gammon, L. J. Sham, Duncan Steel
We review the investigation of the hole-assisted dynamical nuclear spin polarization mechanism in a singly charged InAs quantum dot. Using coherent dark state spectroscopy, we measure the locking of the Overhauser field to a value determined only by the laser frequencies. Importantly, we review ... [J. Opt. Soc. Am. B 29, A119-A126 (2012)]
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Theory and experiments of Bragg cavity modes in passive and active metallic nanoslit array devices
Ilai Schwarz, Moshe G. Harats, Nitzan Livneh, Shira Yochelis, Ayelet Strauss, Adiel Zimran, Uri Banin, Yossi Paltiel, Ronen Rapaport
Metallic nanoslit arrays exhibit several unique, surprising, and useful properties, such as resonant enhanced transmission and resonant local field enhancements. Here we present both a theoretical study of these static properties, as well as experiments showing the utilization of these features ... [J. Opt. Soc. Am. B 29, A127-A137 (2012)]
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On the condensation of polaritons
Benoit Deveaud-Plédran
Bose?Einstein condensates (BECs), the ?fifth state of matter,? have in fact been discovered by chance both in liquid helium and in superconductors. Since these early encounters, BECs have been sought for, both in atom vapors and in solids. Here we report on the case of exciton ... [J. Opt. Soc. Am. B 29, A138-A145 (2012)]
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Femtosecond all-optical modulation of collective spin in the (Ga,Mn)As ferromagnet
Myron D. Kapetanakis, Jigang Wang, Ilias E. Perakis
Using a many-body theory, we discuss some fundamental issues of femtomagnetism in magnetic electronic systems. We address the question of how spin may couple to transient optical coherence during time scales shorter than the photoexcitation duration and the characteristic times of interaction with ... [J. Opt. Soc. Am. B 29, A95-A102 (2012)]
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Excitonic resonances as fingerprint of strong Coulomb coupling in graphene
T. Stroucken, J. H. Grönqvist, S. W. Koch
Within a self-consistent microscopic theory, the conditions for the existence of a strongly Coulomb-correlated phase in graphene is explored, and its fingerprints in the optical spectra are investigated. A second-order semimetal-to-insulator transition is predicted if the effective fine-structure ... [J. Opt. Soc. Am. B 29, A86-A94 (2012)]
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Robust and scalable scheme to generate multipartite atom?photon and atom?atom entangled W states by interference
Hong-Fu Wang, Shou Zhang, X. X. Yi, Xin Ji, Kyu-Hwang Yeon
A robust and scalable scheme for generating atom?photon and atom?atom entangled W states is proposed by using the interference effect of the polarized photons leaking out of the spatially separated cavities. Each of the atoms is trapped separately in a remote optical cavity, and the ... [J. Opt. Soc. Am. B 29, 257-261 (2012)]
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