Synonyme wurden verwendet für: quantenpunkt
Suche ohne Synonyme: quantenpunkt

151–200 von 437 Ergebnissen
|

    Strong-coupling and nonlinear emission from a quantum-dot photonic-crystal-slab nanocavity

    Hendrickson, J.R. / Richards, B.C. / Sweet, J. et al. | IEEE | 2005
    An InAs quantum dot in a photonic crystal nanocavity exhibits vacuum Rabi splitting (strong coupling); a clear anti-crossing is seen ...

    Stable modelocked operation from a quantum-dot laser in a broad temperature range

    Rafailov, E.U. / Cataluna, M.A. / Sibbett, W. et al. | IEEE | 2005
    We demonstrate stable modelocking operation in a two-section quantum-dot laser at temperatures ranging from 20/spl deg/C to 80/spl deg/C ...

    Characteristics of high performance 1.3 /spl mu/m tunnel injection quantum dot lasers

    Mi, Z. / Fathpour, S. / Bhattacharya, P. | IEEE | 2005
    1.3 /spl mu/m tunnel injection InAs quantum dot lasers are reported for the first time. They exhibit T/sub 0/ = /spl infin/ (5/spl deg/C ...

    Orientational imaging and tracking of single colloidal CdSe quantum dots by defocused microscopy

    Brokmann, X. / Ehrensperger, M.V. / Hermier, J.P. et al. | IEEE | 2005

    Patterned quantum dot lasers fabricated using electron beam lithography and selective area epitaxial growth

    Elarde, V.C. / Coleman, J.J. / Bryce, A.C. | IEEE | 2005
    This paper demonstrates a fabrication process which allows the location and geometry of quantum dots to be explicitly defined using ...

    Modelling quantum-dot in quasi-3D photonic crystal defect microcavity for single-photon sources

    Ho, Y.-L.D. / Cao, T. / Ivanov, P.S. et al. | IEEE | 2005
    We model wavelength scale III-V photonic crystal defect microcavities containing a single quantum-dot using 3-D FDTD. These microcavities ...

    Investigation of transition dynamics in a quantum-dot laser optically pumped by femtosecond pulses

    Rafailov, E.U. / McRobbie, A.D. / Cataluna, M.A. et al. | IEEE | 2005
    We investigated the behaviour of a quantum-dot edge-emitting laser, optically pumped by femtosecond pulses. We demonstrated that pulses ...

    Homogeneous broadening in quantum dots due to Auger scattering with wetting layer carriers

    Nilsson, H.H. / Zhang, J.-Z. / Galbraith, I. | IEEE | 2005
    The homogeneous broadening in quantum dots due to various Auger scattering processes is calculated, accounting for exchange and screening ...

    Size dependence of band gap variation and electron-phonon coupling in ZnO Quantum Dots

    Wen-Feng Hsieh, / Hsin-Ming Cheng, / Kuo-Feng Lin, et al. | IEEE | 2005
    Photoluminescence and resonant Raman scattering (RRS) were investigated in various sizes of ZnO quantum dots. The size dependent shift of ...

    InGaAs quantum dots-in-a-well photodetectors grown by metal organic chemical vapor deposition

    Jolley, G. / Tan, H.H. / Fu, L. et al. | IEEE | 2005
    The characteristics of metal organic chemical vapor deposition (MOCVD) grown InGaAs quantum dot infrared photodetectors based on the ...

    Tunable propagation delay of femtosecond pulses in a quantum-dot optical amplifier at room temperature

    van der Poel, M. / Mork, J. / Hvam, J.M. | IEEE | 2005
    Optically induced dispersion over a large bandwidth of 2.6 THz is used to slow or speed up a 150 fs pulse in a quantum-dot optical ...

    Integration of an InGaAs quantum-dot laser with a passive waveguide using selective-area MOCVD

    Mokkapati, S. / Tan, H.H. / Jagadish, C. | IEEE | 2005
    We present the design and operation of an InGaAs quantum-dot laser integrated with a passive waveguide. Selective-area MOCVD is used to ...

    1.3 /spl mu/m high density quantum dot laser with short cavity and cleaved facet

    Amano, T. / Sugaya, T. / Komori, K. | IEEE | 2005
    This paper reports the characteristics of a high density quantum dot (QD) laser. This work demonstrates beyond 1.3-/spl mu/m wavelength ...

    Internal loss as a limiting factor for the maximum power of a quantum dot laser

    Asryan, L.V. | IEEE | 2005
    The free-carrier-density dependent internal loss is shown to strongly limit the output power of a quantum dot laser. The maximum optical ...

    Electronic shell structure in single InAs/InGaAs quantum dots emitting at 1.3 /spl mu/m

    Cade, N.I. / Gotoh, H. / Kamada, H. et al. | IEEE | 2005
    Photoluminescence spectra from single In(Ga)As:Bi quantum dots in a quantum well show low-temperature emission around 1300 nm. We observe ...

    High-quality-factor AlGaAs optical microcavities for atomic Cs and semiconductor quantum dot cavity QED experiments

    Srinivasan, K. / Barclay, P.E. / Painter, O. et al. | IEEE | 2005
    High-quality-factor (Q/spl sim/10/sup 4/-10/sup 5/) AlGaAs microdisks for atomic and semiconductor quantum dot cavity QED experiments are ...

    Single photon emission from gallium nitride quantum dots at a record-short wavelength of 357 nm

    Kako, S. / Hoshino, K. / Ishida, S. et al. | IEEE | 2005
    We present measurements of the second-order coherence function on emission from single GaN quantum dots. A large degree of photon ...

    Modified spontaneous emission and qubit entanglement from two coupled quantum dots in a photonic crystal nanocavity

    Hughes, S. | IEEE | 2005
    Spontaneous emission dynamics of two dipole-coupled quantum dots in a photonic crystal nanocavity are theoretically investigated. Strong ...

    Ultra-thin quantum wells and fractional monolayer quantum dots of II-VI semiconductors for optoelectronic applications

    Hernandez-Calderon, I. / Alfaro-Martinez, A. / Garcia-Rocha, M. | IEEE | 2005
    degradation of their structural quality during the ALE growth. Fractional monolayer quantum dots (FMQDs) produced by the deposition of /spl sim/0.5 ML ...

    The influence of p-doping on the temperature sensitivity of 1.3 /spl mu/m quantum dot lasers

    Masse, N.F. / Marko, I.P. / Sweeney, S.J. et al. | IEEE | 2005
    We find that non-radiative recombination plays an important role in p-doped quantum-dot lasers. Along with carrier thermalisation effects ...

    Transient spectral hole burning spectroscopy of exciton spin flip processes in In(Ga)As quantum dots

    Muller, T. / Strasser, G. / Unterrainer, K. | IEEE | 2005
    Transient spectral hole burning measurements are performed on InAs/GaAs self-assembled quantum dots. In the case of cross-polarized pump ...

    Modeling and fabrication of sub-diffraction nanophotonic waveguides constructed via DNA-directed self-assembled quantum dots

    Wang, C.-J. / Lin, L.Y. / Parviz, B.A. | IEEE | 2005
    We present the design, model, and preliminary fabrication results for a sub-diffraction nanophotonic waveguide composed of quantum dots ...

    Numerical aperture increasing lens microscopy for high resolution and high collection efficiency spectroscopy of single quantum dots

    Vamivakas, A.N. / Liu, Z. / Ippolito, S.B. et al. | IEEE | 2005
    The numerical aperture increasing lens (NAIL) technique is applied to imaging and spectroscopy of single InGaAs quantum dots (QDs). Using ...

    Rapid thermal annealing study of InGaAs/GaAs quantum dot infrared photodetectors grown by metal-organic chemical vapor deposition

    Fu, L. / Kuffner, P. / McKerracher, I. et al. | IEEE | 2005
    In this work, the effects of postgrowth rapid thermal annealing (RTA) on tuning the operating wavelength of self-assembled quantum dots ...

    Temperature-Insensitive 10 Gb/s Direct Modulation Lasers with InAs Self-Assembled Quantum Dots at 1.3 μm

    Sugawara, M. / Otsubo, K. / Yamamoto, T. et al. | IEEE | 2005
    Based on our design on the maximum bandwidth for high-speed modulation and p-type doping into quantum dots for high temperature stability ...

    Large enhancement of fluorescence from CdSe/ZnS quantum dots induced by resonant coupling to spatially controlled surface plasmons

    Shi, S. / Atay, T. / Urabe, H. et al. | IEEE | 2005
    Nanoengineered fluorescent response is reported in semiconductor core-shell (CdSe/ZnS) quantum dots in proximity to the surface plasmon ...

    GaAs-Based InAs/InGaAs Quantum Dot Vertical Cavity and Vertical External Cavity Surface Emitting Lasers Emitting Near 1300 nm

    Lott, J.A. / Kovsh, A.R. / Ledentsov, N.N. et al. | IEEE | 2005
    quantum dot active regions grown on GaAs substrates that emit over 1 mW continuous wave peak power at room temperature are demonstrated. ...

    Singlemode monolithically quantum-dot vertical-cavity surface-emitting laser in 1.3 /spl mu/m with side-mode suppression ratio > 30 dB

    Chang, Y.H. / Lin, G.R. / Kuo, H.C. et al. | IEEE | 2005
    We present monolithically quantum-dot vertical-cavity surface-emitting laser (QD VCSELs) operating in the 1.3 /spl mu/m optical ...

    size and density control of InAs quantum dots by selective MOVPE growth employing stripe mask array and composition-varied GaInAs layer

    Yamauchi, Y. / Kawakita, Y. / Okamoto, S. et al. | IEEE | 2005
    Selective MOVPE growth of self-assembled InAs quantum dots (QDs) using a SiO/sub 2/ narrow stripe mask array and composition-varied GaInAs ...

    Experimental observation of the magnitude and sign of the third order optical nonlinearity in CdS quantum dots in a dendrimer matrix

    Etienne, M. / Walser, A.D. / Dorsinville, R. et al. | IEEE | 2005
    We have investigated the nonlinear optical response of CdS quantum dots in a poly(propyleneimine) dendrimer matrix having diaminobutane ...

    Effects of strain and barrier height of thin interlayer on InAs quantum dots grown on GaInAsP/InP (100) by metalorganic chemical vapor deposition

    Barik, S. / Tan, H.H. / Barik M, et al. | IEEE | 2005
    experimentally observed blue-shift in the photoluminescence of InAs quantum dots grown on GaInAsP/InP (100). ...

    Static and dynamic measurements of the Henry factor of 5-quantum dot layer single mode lasers emitting at 1.3 /spl mu/m on GaAs

    Martinez, A. / Provost J-G, / Lemaitre, A. et al. | IEEE | 2005
    The "material" and "device" linewidth enhancement factor of 5 quantum-dot layer single mode lasers emitting at 1.3 /spl mu/m are ...

    Why is the room temperature optical differential gain of zero, one and two dimensional semiconductor lasers nearly identical

    Dery, H. / Eisenstein, G. | IEEE | 2005
    We model the differential gain in nano-structure semiconductor lasers. Quantum dots, wires and wells are compared and are found to have ...

    Monolithic integration of Sb-based photopumped lasers on Si

    Balakrishnan, G. / Huang, S. / Khoshakhlagh, A. et al. | IEEE | 2005
    device is grown on Si(100) using an AlSb quantum dot nucleation layer. ...

    Controlled spatial and spectral coupling of single InAs excitons to photonic crystal nanocavity modes

    Hennessy, K. / Badolato, A. / Petroff, P.M. et al. | IEEE | 2005
    We demonstrate a method to deterministically couple single InAs quantum dots to photonic crystal nanocavities based on high resolution ...

    Nanophotonic memory-based computation using optical near-field interactions

    Naruse, Makoto / Kawazoe, Tadashi / Sangu, Suguru et al. | IEEE | 2005
    -field interactions between quantum dots, which will allow high-density integration beyond the diffraction-limit of light. ...

    Physics and simulation of semiconductor lasers

    Koch, S.W. | IEEE | 2005
    semiconductor heterostructures are discussed and nonequilibrium simulations of quantum-well and quantum-dot laser systems are presented. ...

    Probing ultrafast carrier dynamics in semiconductor nanostructures with terahertz pulses

    Cooke, D.G. / MacDonald, A.N. / Hryciw, A. et al. | IEEE | 2005
    InGaAs quantum dot chains and wires, GaAs nanowires, and Si nanoclusters embedded in glass. ...

    Towards wafer-scale integration of high-repetition-rate passively mode-locked surface-emitting semiconductor lasers

    Maas, D.J.H.C. / Lorenser, D. / Unold, H.J. et al. | IEEE | 2005
    The successful fabrication of quantum-dot-based semiconductor saturable absorber mirrors has been demonstrated in a laser running at record ...

    A single-photon resonant-cavity LED

    Bennett, A.J. / Unitt, D.C. / See, P. et al. | IEEE | 2005
    We describe an electrically driven single photon source consisting of a single InAs/GaAs quantum dot within a planar microcavity. Single ...

    Controlling spontaneous emission rate in solid state for quantum information science

    Englund, D. / Fattal, D. / Waks, E. et al. | IEEE | 2005
    We enhance and suppress the excitonic lifetime of an InAs quantum dot (QD) by modifying its alignment with a resonance cavity in a photonic ...

    Investigation of the carrier dynamics of strain compensated InGaAsN quantum wells

    Lifang Xu, / Patel, D. / Vaschenko, G. et al. | IEEE | 2005
    A quantum dot-like behavior in the dynamics of carrier recombination is observed in InGaAsN quantum wells at temperatures at and below /spl ...

    Optical interconnects using optical far- and near-field interactions for high-density data broadcasting

    Naruse, M. / Kubota, F. / Kawazoe, T. et al. | IEEE | 2005
    interactions between quantum dots, which are forbidden for far-field light, allowing sub-wavelength device functions and far-field excitation for ...

    Towards wafer-scale integration of high-repetition-rate passively mode-locked surface-emitting semiconductor lasers

    Unold, H.J. / Lorenser, D. / Maas, D.J.H.C. et al. | IEEE | 2005
    We demonstrate the fabrication of a key element for monolithic integration of mode-locked VECSELs, namely a quantum-dot-based SESAM with ...