Radiative cascades in charged quantum dots (2009)
Poem, E., Kodriano, Y., Tradonsky, C., Gershoni, D., Gerardot, B. D., Petroff, P. M.
We measured, for the first time, two photon radiative cascades due to sequential recombination of quantum dot confined electron hole pairs in the presence of an additional spectator charge carrier....
Polarization memory in single Quantum Dots (2009)
Poem, E., Khatsevich, S., Benny, Y., Marderfeld, I., Badolato, A., Petroff, P. M., ...
We measured the polarization memory of excitonic and biexcitonic optical transitions from single quantum dots at either positive, negative or neutral charge states. Positive, negative and no circular...
Spontaneously Localized Photonic Modes Due to Disorder in the Dielectric Constant (2007)
Kodriano, Y., Gershoni, D., Linder, E., Shapiro, B., Raikh, M. E., Reithmaier, J. P., ...
We present the first experimental evidence for the existence of strongly localized photonic modes due to random two dimensional fluctuations in the dielectric constant. In one direction, the modes...
Entanglement on demand through time reordering (2007)
Avron, J. E., Bisker, G., Gershoni, D., Lindner, N. H., Meirom, E. A., Warburton, R. J.
Entangled photons can be generated "on demand" in a novel scheme involving unitary time reordering of the photons emitted in a radiative decay cascade. The scheme yields polarization entangled photon...
Distilling entanglement from cascades with partial "Which Path" ambiguity (2007)
Meirom, E. A., Lindner, N. H., Berlatzky, Y., Poem, E., Akopian, N., Avron, J. E., ...
We develop a framework to calculate the density matrix of a pair of photons emitted in a decay cascade with partial "which path" ambiguity. We describe an appropriate entanglement distillation scheme...
Polarization sensitive spectroscopy of charged Quantum Dots (2007)
Poem, E., Shemesh, J., Marderfeld, I., Galushko, D., Akopian, N., Gershoni, D., ...
We present an experimental and theoretical study of the polarized photoluminescence spectrum of single semiconductor quantum dots in various charge states. We compare our high resolution polarization...
A comment on "A semiconductor source of entangled photons" (2006)
Lindner, N. H., Avron, J., Akopian, N., Gershoni, D.
When basic tools of quantum information are applied to the quantum tomography data presented in Nature 439, 179 (2006), none of their devices appears to be a source of entangled photons.
Entangled Photon Pairs from Semiconductor Quantum Dots (2005)
Akopian, N., Lindner, N. H., Poem, E., Berlatzky, Y., Avron, J., Gershoni, D., ...
Tomographic analysis demonstrates that the polarization state of pairs of photons emitted from a biexciton decay cascade becomes entangled when spectral filtering is applied. The measured density...
Emission characteristics of quantum dots in planar microcavities (2005)
Ramon, G., Mizrahi, U., Akopian, N., Braitbart, S., Gershoni, D., Reinecke, T. L., ...
The emission properties of single quantum dots in planar microcavities are studied experimentally and theoretically. Fivefold Enhanced spontaneous emission outside the microcavity is found for dots...
Polarized fine structure in the excitation spectrum of a negatively charged quantum dot (2005)
Ware, M. E., Stinaff, E. A., Gammon, D., Doty, M. F., Bracker, A. S., Gershoni, D., ...
We report polarized photoluminescence excitation spectroscopy of the negative trion in single charge tunable InAs/GaAs quantum dots. The spectrum exhibits a p-shell resonance with polarized fine...
Ware, M. E., Stinaff, E. A., Gammon, D., Doty, M. F., Bracker, A. S., Gershoni, D., ...
We report polarized photoluminescence excitation spectroscopy of the negative trion in single charge-tunable InAs/GaAs quantum dots. The spectrum exhibits a p-shell resonance with polarized fine...
Ware, M. E., Stinaff, E. A., Gammon, D., Doty, M. F., Bracker, A. S., Gershoni, D., ...
We report polarized photoluminescence excitation spectroscopy of the negative trion in single charge-tunable InAs/GaAs quantum dots. The spectrum exhibits a p-shell resonance with polarized fine...
Optical pumping of electronic and nuclear spin in single charge-tunable quantum dots (2004)
Bracker, A. S., Stinaff, E. A., Gammon, D., Ware, M. E., Tischler, J. G., Shabaev, A., ...
We present a comprehensive examination of optical pumping of spins in individual GaAs quantum dots as we change the charge from positive to neutral to negative using a Schottky diode. We observe that...
Ultrasmall In(Ga)As Quantum Dots Grown on Strained GaxIn1-xP Layers (2002)
Raz, T., Ritter, D., Bahir, G., Gershoni, D.
InAs self-assembled quantum dots were grown on strained layers of GaxIn1-xP (0 < x < 0.3) on InP substrates. We show that the quantum dots have narrow vertical dimensions, ranging between 2 to 10...
Regelman, D. V., Mizrahi, U., Gershoni, D., Ehrenfreund, E., Schoenfeld, W. V., Petroff, P. M.
We investigate the intensity correlation properties of single photons emitted from an optically excited single semiconductor quantum dot. The second order temporal coherence function of the photons...
Regelman, D. V., Dekel, E., Gershoni, D., Ehrenfreund, E., Williamson, A. J., Shumway, J., ...
We report on the observation of photoluminescence from positive, neutral and negative charge states of single semiconductor quantum dots. For this purpose we designed a structure enabling optical...
Regelman, D. V., Dekel, E., Gershoni, D., Ehrenfreund, E., Schoenfeld, W. V., Petroff, P. M.
We study optically single self-assembled quantum dots embedded within the wide quantum well of a mixed type quantum structure. We compare the steady state and pulsed photoluminescence spectra of...
Semiconductor Quantum Dot (2001)
Ehrenfreund, E., Gershoni, D., Mizrahi, U., Regelman, D. V., Schoenfeld, W. V.
Dekel, E., Regelman, D. V., Gershoni, D., Ehrenfreund, E., Schoenfeld, W. V., Petroff, P. M.
Using time correlated single photon counting combined with temperature dependent diffraction limited confocal photoluminescence spectroscopy we accurately determine, for the first time, the intrinsic...
Carrier-Carrier Correlations in an Optically Excited Single Semiconductor Quantum Dot (1999)
Dekel, E., Gershoni, D., Ehrenfreund, E., Garcia, J. M., Petroff, P. M.
We applied low temperature diffraction limited confocal optical microscopy to spatially resolve, and spectroscopically study photoluminescence from single self-assembled semiconductor quantum dots....
Self-organized growth on V-grooved substrates (1999)
Grosse, F., Kley, A., Scheffler, M., Zimmermann, R., Gershoni, D.
Surfaces and growth of group-III nitrides (1999)
Neugebauer, J., Zywietz, T. K., Scheffler, M., Northrup, J. E., Gershoni, D.
Measurement of the magnetic breakdown field in coupled double quantum wells. (1999)
Gershoni, D., Harff, N. E., Palevski, A., Dietsche, W., Von Klitzing, K., Eberl, K.
Dynamics of spin polarization in a two-dimensional electron gas. (1999)
Gershoni, D., Potemski, M., Gravier, L., Perez, E., Martin, M. D., Vina, L., ...
Multi-Exciton Spectroscopy of a Single Self Assembled Quantum Dot (1998)
Dekel, E., Gershoni, D., Ehrenfreund, E., Petroff, P. M.
We apply low temperature confocal optical microscopy to spatially resolve, and spectroscopically study a single self assembled quantum dot. By comparing the emission spectra obtained at various...
Cyclotron resonance and photoluminescence of CdMnTe/CdMgTe modulation doped quantum wells. (1998)
Gershoni, D., Sadowski, M. L., Teran, F. J., Potemski, M., Karczewski, G., Kutrowski, M., ...
Hot photoluminescence polarization study of dimensionality effects in GaAs. (1998)
Gershoni, D., Sapega, V. F., Perell, V. I., Mirlin, D. N., Ruf, T., Cardona, M., ...
Hydrogen in silicon: evidence for transition-metal hydrogen complexes and hydrogen molecules. (1998)
Raman study of isotope effects on the phonon dispersion in SiC. (1998)
Gershoni, D., Widulle, F., Ruf, T., Buresch, O., Debernardi, A., Cardona, M.
Far infrared spectroscopy of shallow donors in bulk GaN. (1998)
Gershoni, D., Witowski, A. M., Sadowski, M. L., Pakuła, K., Wyder, P.
Radiative lifetimes of excitons in quantum wires (1994)
Gershoni, D., Katz, M., Wegscheider, Werner, Pfeiffer, L. N., Logan, R. A., West, Kenneth W.
The excitonic population lifetime and its temperature dependence is measured in nanometer-scale quantum wires. The measurements were performed on two cleaved-edge overgrown GaAs quantum-wire systems,...
Garini, Y., Linder, E., Cohen, E., Gershoni, D., Ehrenfreund, E., Ron, A., ...
We present a study of the interband and intersubband transitions in mixed type I and type II GaAs/AlAs superlattices. Depending on the energy and intensity of the exciting (laser) radiation, either...
Garini, Y., Linder, E., Cohen, E., Gershoni, D., Ehrenfreund, E., Ron, A., ...
We present a study of the interband and intersubband transitions in mixed type I and type II GaAs/AlAs superlattices. Depending on the energy and intensity of the exciting (laser) radiation, either...
Garini, Y., Linder, E., Cohen, E., Gershoni, D., Ehrenfreund, E., Ron, A., ...
We present a study of the interband and intersubband transitions in mixed type I and type II GaAs/AlAs superlattices. Depending on the energy and intensity of the exciting (laser) radiation, either...
Formation of a high quality two-dimensional electron gas on cleaved GaAs (1990)
Pfeiffer, Loren, West, K. W., Stormer, H. L., Eisenstein, J. P., Baldwin, K. W., Gershoni, D., ...
We have succeeded in fabricating a two-dimensional electron gas (2DEG) on the cleaved (110) edge of a GaAs wafer by molecular beam epitaxy (MBE). A (100) wafer previously prepared by MBE growth is...
EXCITON TRANSFER IN GaASxP1-x : N (1985)
Gershoni, D., Ron, A., Cohen, E.
Selective excitation within the inhomogeneously broadened band of excitons bound to nitrogen impurities in GaAsxP1-x : N is used to study the low temperature transfer between localized states. The...
EXCITON TRANSFER IN GaASxP1-x : N (1985)
Gershoni, D., Ron, A., Cohen, E.
Selective excitation within the inhomogeneously broadened band of excitons bound to nitrogen impurities in GaAsxP1-x : N is used to study the low temperature transfer between localized states. The...
EXCITON TRANSFER IN GaASxP1-x : N (1985)
Gershoni, D., Ron, A., Cohen, E.
Selective excitation within the inhomogeneously broadened band of excitons bound to nitrogen impurities in GaAsxP1-x : N is used to study the low temperature transfer between localized states. The...