L
Le Si Dang
Researcher at University of Grenoble
Publications - 219
Citations - 7814
Le Si Dang is an academic researcher from University of Grenoble. The author has contributed to research in topics: Photoluminescence & Exciton. The author has an hindex of 38, co-authored 216 publications receiving 7282 citations. Previous affiliations of Le Si Dang include Centre national de la recherche scientifique & Joseph Fourier University.
Papers
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Journal ArticleDOI
Formation of an Exciton Polariton Condensate: Thermodynamic versus Kinetic Regimes
TL;DR: The polariton distribution function and the condensation threshold versus the photon-exciton detuning and the lattice temperature in a CdTe microcavity under nonresonant pumping is measured.
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Intrinsic decoherence mechanisms in the microcavity polariton condensate.
A. P. D. Love,D. N. Krizhanovskii,D. M. Whittaker,R. Bouchekioua,Daniele Sanvitto,S. Al Rizeiqi,R. A. Bradley,M. S. Skolnick,Paul R. Eastham,Régis André,Le Si Dang +10 more
TL;DR: The fundamental mechanisms which control the phase coherence of the polariton Bose-Einstein condensate (BEC) are determined and it is shown that the combination of number fluctuations and interactions leads to decoherence with a characteristic Gaussian decay of the first-order correlation function.
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Experimental evidence for nonequilibrium Bose condensation of exciton polaritons
Murielle Richard,Jacek Kasprzak,Régis André,R. Romestain,Le Si Dang,Guillaume Malpuech,Alexey Kavokin +6 more
TL;DR: In this article, the authors observed dramatic changes in the near-field and far-field emission from a semiconductor microcavity excited by a pulsed and nonresonant optical pump with varying power.
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Growth of GaN free-standing nanowires by plasma-assisted molecular beam epitaxy:structural and optical characterization
Maria Tchernycheva,Maria Tchernycheva,Corinne Sartel,G. E. Cirlin,Laurent Travers,Gilles Patriarche,Jean-Christophe Harmand,Le Si Dang,Julien Renard,Bruno Gayral,Laurent Nevou,F. H. Julien +11 more
TL;DR: In this paper, the growth, structural and optical properties of GaN free-stranding nanowires synthesized in catalyst-free mode on Si(111) substrate by plasma-assisted molecular beam epitaxy were observed.
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Spontaneous coherent phase transition of polaritons in CdTe microcavities.
TL;DR: In this article, the authors investigated the polariton population and first-order coherence of a CdTe-based microcavity under nonresonant pumping and showed that it comes from a narrow ring in k space, exhibiting enhanced spatial and angular coherence at the stimulation onset.