Search Results - "Gilliot, P"
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Localized states in advanced dielectrics from the vantage of spin- and symmetry-polarized tunnelling across MgO
Published in Nature communications (04-08-2014)“…Research on advanced materials such as multiferroic perovskites underscores promising applications, yet studies on these materials rarely address the impact of…”
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Luminescent Properties and Energy Transfer in Pr3+ Doped and Pr3+-Yb3+ Co-doped ZnO Thin Films
Published in Journal of physical chemistry. C (26-06-2014)“…Embedding luminescent rare earth ions into transparent oxides such as ZnO is a well-known approach to functionalize the material by adding photon-management…”
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Ultrafast Optical Dynamics of Metal-Free and Cobalt Phthalocyanine Thin Films
Published in Journal of physical chemistry. C (11-03-2010)“…We discuss the structural properties and the ultrafast dynamics of absorption changes of cobalt phthalocyanine (Pc) thin films (CoPc), and we compare them to…”
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Biexciton, single carrier, and trion generation dynamics in single-walled carbon nanotubes
Published in Physical review. B, Condensed matter and materials physics (08-05-2013)“…We present a study of free carrier photogeneration and multicarrier bound states, such as biexcitons and trions (charged excitons), in semiconducting…”
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Closely packed luminescent silicon nanocrystals in a distributed-feedback laser cavity
Published in New journal of physics (12-06-2008)Get full text
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Optical gain in porous silicon grains embedded in sol-gel derived SiO2 matrix under femtosecond excitation
Published in Applied physics letters (26-04-2004)“…Porous silicon grains embedded in the phosphorus doped SiO2 matrix exhibit improved photoluminesce properties and better stability in comparison with native…”
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Phonon-assisted exciton formation in ZnO/(Zn, Mg)O single quantum wells grown on C-plane oriented substrates
Published in Journal of luminescence (01-04-2013)“…We report on absorption phenomena in ZnO/(Zn, Mg)O quantum wells grown along the c-axis by molecular beam epitaxy. The optical properties of such quantum wells…”
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Si nanocrystals in a distributed feedback laser cavity
Published in Applied physics letters (19-06-2006)“…We investigate an optically induced distributed-feedback cavity, containing a densely packed luminescent silicon nanocrystal layer in a Si O 2 based matrix as…”
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Determination of the signal polarization state in four-wave mixing experiments on semiconductors
Published in Journal of luminescence (01-09-2007)“…Based on symmetry considerations, we develop a simple model for the determination of the polarization state of the four-wave mixing (FWM) response on…”
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Study of exciton-polariton spin dynamics
Published in Applied physics letters (29-11-2004)“…We study the relaxation dynamics of spin-polarized exciton-polaritons using a technique in a pump-probe configuration: According to their total angular…”
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Direct electron- and hole-spin relaxation measurements in undoped piezoelectric CdTe quantum wells
Published in Applied physics letters (07-11-2005)“…Two heavy-hole exciton transitions sharing a common electronic energy level in the conduction band are used in a pump-probe transmission experiment to…”
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Porous silicon grains in SiO2 matrix: Ultrafast photoluminescence and optical gain
Published in Journal of non-crystalline solids (15-08-2006)“…We search for the presence of stimulated emission in samples of porous silicon embedded in the sol–gel derived SiO2 matrix. By modifying the etching conditions…”
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Electron–hole relaxation through optical-phonon emission in CdTe/ZnTe quantum dots
Published in Applied surface science (15-07-2005)“…We present a study of ZnCdTe quantum dots (QDs) embedded in Zn-rich ZnCdTe quantum wells (QWs). The Cd-rich ZnCdTe islands are confined along the growth…”
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Journal Article Conference Proceeding -
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Optical gain in nanocrystalline silicon: comparison of planar waveguide geometry with a non-waveguiding ensemble of nanocrystals
Published in Optical materials (01-02-2005)“…Stimulated emission from nanocrystalline silicon in the visible has become a hot topic during the past years. Various forms of silicon nanostructures are being…”
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Journal Article Conference Proceeding -
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Observation of Interband Two-Photon Absorption Saturation in CdS
Published in Physical review letters (19-08-1996)Get full text
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Emission properties of a distributed feedback laser cavity containing silicon nanocrystals
Published in Journal of luminescence (2006)“…We report on light emission from silicon nanocrystals (Si-nc) in a laser cavity. Using modified electrochemical etching of Si wafers we prepare Si-nc with…”
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Journal Article Conference Proceeding -
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Spin dynamics and lifetime of exciton polaritons in CuCl
Published in Applied surface science (15-07-2005)“…In CuCl, biexcitons may be excited from the semiconductor ground state by two circularly polarized exciton polaritons of opposite helicity. We use this…”
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Journal Article Conference Proceeding -
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Photoluminescence and Optical Gain in CuBr Semiconductor Nanocrystals
Published in physica status solidi (b) (01-03-2001)“…Size‐dependent excitonic photoluminescence (PL) of CuBr nanocrystals is studied using both, resonant and band‐to‐band excitation. Narrow excitonic emission…”
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Excitonic dynamics in CdTe/ZnTe quantum dots
Published in Materials science & engineering. B, Solid-state materials for advanced technology (15-08-2003)“…We study the dephasing and population dynamics of excitons at low temperature, in self-organized CdTe/ZnTe islands grown by atomic layer epitaxy. Using a…”
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