Results 281 to 290 of about 81,116 (318)
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Nature Methods, 2006
Bioluminescence is widely used for in vivo imaging of nude mice. By conjugating luciferase protein to quantum dots, bioluminescence resonance energy transfer (BRET) turns these useful fluorophores into a new class of bioluminescent probe.
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Bioluminescence is widely used for in vivo imaging of nude mice. By conjugating luciferase protein to quantum dots, bioluminescence resonance energy transfer (BRET) turns these useful fluorophores into a new class of bioluminescent probe.
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Journal of Nonlinear Optical Physics & Materials, 1996
Basic ingredients of a microscopic theory describing the degenerate four-wave mixing of the outgoing field from a mesoscopic source particle were established. Starting from many-body theory and selfenergy quantum electrodynamics it is argued that the best spatial confinement one might hope to obtain of the source field is given by the extension of the
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Basic ingredients of a microscopic theory describing the degenerate four-wave mixing of the outgoing field from a mesoscopic source particle were established. Starting from many-body theory and selfenergy quantum electrodynamics it is argued that the best spatial confinement one might hope to obtain of the source field is given by the extension of the
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Physics World, 1997
Semiconductor lasers are key components in many of the appliances that we take for granted in everyday life. Fibre-optic communications and compact-disc players are perhaps the two best known examples. There is also a world-wide research and development effort to improve the performance of these devices by making them smaller, brighter, more efficient ...
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Semiconductor lasers are key components in many of the appliances that we take for granted in everyday life. Fibre-optic communications and compact-disc players are perhaps the two best known examples. There is also a world-wide research and development effort to improve the performance of these devices by making them smaller, brighter, more efficient ...
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Applied Physics Letters, 2000
A micrometer-sized spherical microcavity, the photonic dot, is made from semiconductor nanocrystals, the quantum dots. The coupling of electronic and photonic states is demonstrated for a single photonic dot by the observation of whispering gallery modes in the spectrum of spontaneous emission of the embedded CdSe quantum dots.
M. V. Artemyev, U. Woggon
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A micrometer-sized spherical microcavity, the photonic dot, is made from semiconductor nanocrystals, the quantum dots. The coupling of electronic and photonic states is demonstrated for a single photonic dot by the observation of whispering gallery modes in the spectrum of spontaneous emission of the embedded CdSe quantum dots.
M. V. Artemyev, U. Woggon
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Quantum dots and nanocomposites
WIREs Nanomedicine and Nanobiotechnology, 2010AbstractQuantum dots (QDs), also known as semiconducting nanoparticles, are promising zero‐dimensional advanced materials because of their nanoscale size and because they can be engineered to suit particular applications such as nonlinear optical devices (NLO), electro‐optical devices, and computing applications.
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Nano Letters, 2008
We report single-mode and multimode lasing from isolated spherical liquid microcavities containing CdSe/ZnS nanocrystal quantum dots. Lasing is observed at densities more than 2 orders of magnitude lower than previously demonstrated or theoretically predicted, assuming a uniform nanocrystal quantum dot distribution.
Schaefer, J. +6 more
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We report single-mode and multimode lasing from isolated spherical liquid microcavities containing CdSe/ZnS nanocrystal quantum dots. Lasing is observed at densities more than 2 orders of magnitude lower than previously demonstrated or theoretically predicted, assuming a uniform nanocrystal quantum dot distribution.
Schaefer, J. +6 more
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Excitonic Absorption in a Quantum Dot
Physical Review Letters, 2000The excitonic absorption spectrum of a single quantum dot is investigated theoretically and experimentally. The spectrum is determined by an interacting electron-valence-hole complex. We show that the mixing of quantum configurations by two-body interactions leads to distinct absorption spectra controlled by the number of confined electronic shells ...
Hawrylak, Pawel +4 more
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Polaron resonance in quantum dots and quantum-dot molecules
Solid State Communications, 2007The theory of exciton coupling to photons and LO-phonons in quantum dots (QDs) and quantum-dot molecules (QDMs) is presented. Resonant-round trips of the exciton between the ground and excited states mediated by the LO-phonon alter the decay time and yield the Rabi oscillation.
K.-M. Hung, C.-S. Chen
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Electrochromic Nanocrystal Quantum Dots.
ChemInform, 2001AbstractFor Abstract see ChemInform Abstract in Full Text.
C, Wang, M, Shim, P, Guyot-Sionnest
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Angewandte Chemie International Edition, 2015
AbstractAs a unique two‐dimensional nanomaterial, layered black phosphorus (BP) nanosheets have shown promising applications in electronics. Although mechanical exfoliation was successfully used to prepare BP nanosheets, it is still a challenge to produce novel BP nanostructures in high yield.
Zhang, Xiao +12 more
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AbstractAs a unique two‐dimensional nanomaterial, layered black phosphorus (BP) nanosheets have shown promising applications in electronics. Although mechanical exfoliation was successfully used to prepare BP nanosheets, it is still a challenge to produce novel BP nanostructures in high yield.
Zhang, Xiao +12 more
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