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301–350 von 437 Ergebnissen
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    High-Power Single Mode InGaAs Sub-Monolayer Quantum-Dot Photonic-Crystal VCSELs

    Yang, H.P.D. / Hsiao, R.S. / Lin, G. et al. | IEEE | 2006

    High-power GaInAs/(Al)GaAs quantum dot lasers with optimized waveguide design for high brightness applications

    Deubert, S. / Klopf, F. / Reithmaier, J.P. et al. | IEEE | 2002
    Quantum dot lasers with high cw output power, very low temperature shift of emission wavelength and vertical far field angles below 35/spl ...

    High-Power and Broad-Band Quantum Dot SLDs for Optical Coherence Tomography

    Groom, K.M. / Ray, S.K. / Alexander, R.R. et al. | IEEE | 2006

    High power (3W) GaInAs/(AI)GaAs quantum dot tapered laser arrays with high wavelength stability and low divergence

    Auzanneau, S.-C. / Calligaro, M. / Krakowski, M. et al. | IEEE | 2004
    High power (3W) and low divergence (4/spl deg/ at FWHM) are demonstrated at 990 nm using arrays of index guided GaInAs/(Al)GaAs quantum dot ...

    High performance long-wavelength QD diode lasers on GaAs substrates

    Maleev, N.A. / Kovsh, A.R. / Zhukov, A.E. et al. | IEEE | 2002
    Long-wavelength GaAs-based quantum dot laser diodes with external differential efficiency of 84...88% combined with low internal loss and ...

    High bandwidth modulation of multiple contact 1.3 micron quantum dot lasers

    Wonfor, A. / Tan, K.T. / Ribbat, C. et al. | IEEE | 2002
    By forming twin contacts on a 1300 nm quantum dot laser, a small signal modulation bandwidth of 4.6 GHz is achieved. This bandwidth value ...

    Growth of InGaAs quantum dots by metal organic chemical vapour deposition

    Lever, P. / Tan, H.H. / Jagadish, C. | IEEE | 2002
    In/sub 0.5/Ga/sub 0.5/As quantum dots have been grown by metal-organic chemical vapour deposition (MOCVD). The size and density of these ...

    Growth and spectroscopy of II-VI CdSe quantum dots

    Cavenett, B.C. / Tang, X. / Bradford, C. et al. | IEEE | 2002
    In this paper we review the recent progress in the growth and spectroscopy of CdSe quantum dots. In particular, atomic layer epitaxy (ALE ...

    Growth and properties of indium nitride thin films and InN nanostructures

    Briot, O. / Ruffenach, S. / Gil, B. | IEEE | 2005
    The growth of indium nitride quantum dots are studied. An investigation of the dot built-in strain, at the nanometric scale, performed ...

    Growth and optical properties of GaN-based quantum dots

    Hyun Jin Kim, / Hyunseok Na, / Soon-Yong Kwon, et al. | IEEE | 2003
    GaN-based quantum dots were grown by low-pressure metalorganic chemical vapor depositions. High-density In-rich InGaN/GaN quantum dots were ...

    Ground and excited-state modelocking in a two-section quantum-dot laser

    Cataluna, M.A. / Rafailov, E.U. / McRobbie, A.D. et al. | IEEE | 2005
    quantum-dot laser. The change of generation between these states in the mode-locking regime is fully controllable. ...

    Gaussian process in control : model predictive control with guarantees and control of scanning quantum dot microscopy

    Freier Zugriff
    Maiworm, Michael | BASE | 2021
    scanning quantum dot microscopy, which is a recently developed microscopy technique that generates images of electrostatic potentials of ...

    GaInNAs and quantum dot lasers - GaAs-based lasers for telecommunications

    Forchel, A. | IEEE | 2004
    )As quantum dots (QD). Routes for further improvements like the use of GaInNAsSb as proposed by J. Harris et al., Stanford, will be discussed. ...

    Gain measurement of broadband quantum dot SOA by two-section technique

    Yi-Shin Su, / Wei-Che Chang, / Chao-Hsin Wu, et al. | IEEE | 2005

    Gain and carrier distribution in InGaAs quantum dot lasers

    Smowton, P.M. | IEEE | 2003
    -using measurements of gain and carrier distribution in InGaAs quantum dot laser structures. ...

    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. ...

    GaAs-based bipolar cascade InAs/InGaAs quantum dot VCSELs emitting near 1300 nm

    Lott, J.A. / Stintz, A. / Kovsh, A.R. et al. | IEEE | 2005
    This study presents the design and performance of self-assembled quantum dot (QD) vertical cavity surface emitting lasers (VCSELs) in a ...

    Formation of InGaAs/GaAs quantum-well dots by using self-assembled InAs quantum dots as stressors

    Xiaodong Mu, / Yujie J. Ding, / Zhiming Wang, et al. | IEEE | 2003

    Formation and characteristics of wide band gap II-VI semiconductor quantum dots

    Fan, X.W. / Shan, C.X. / Yang, Y. et al. | IEEE | 2003
    CdSe and ZnCdSe quantum dots (QDs) were grown under Stranski-Krastanow (S-K) mode by low-pressure metalorganic chemical vapor deposition ...

    Fiber-coupled, high-Q AlGaAs microdisk cavities for chip-based cavity QED

    Srinivasan, K. / Barclay, P.E. / Borselli, M. et al. | IEEE | 2005
    Fiber-coupled, high-quality-factor (Q > 10/sup 5/) AlGaAs microdisks with embedded quantum dots are demonstrated. Microdisk lasers ...

    Fiber-coupled, high-Q AlGaAs microdisk cavities for chip-based cavity QED

    Painter, O. / Srinivasan, K. / Borselli, M. et al. | IEEE | 2005
    provide an efficient optical channel for studying and manipulating the microcavity-quantum dot system, with in-fiber cavity mode collection ...

    Femtosecond pump-probe studies on carrier dynamics in InGaN/GaN quantum wells with indium aggregated quantum dot structures

    Hsiang-Chen Wang, / Cheng-Yeh Tsai, / Yung-Chen Cheng, et al. | IEEE | 2003
    quantum dots, which were formed through indium aggregation in InGaN/GaN quantum well structures of various parameters. ...

    Femtosecond photonic devices using nano-structure materials for ultrafast optical communications

    Wada, O. | IEEE | 2003
    progresses in various femtosecond photonic devices including quantum well intersubband transition switches and quantum dot optical amplifier devices. ...

    Femtosecond interactions in semiconductor quantum dots

    Klimov, V.I. | IEEE | 2001
    as small as 5%. These nanoparticles are also known as nanocrystals or colloidal quantum dots (QDs). The sub-10-nm size range corresponds to a ...

    Fast quantum-dot saturable absorber for passive mode-locking of solid-state lasers

    Rafailov, E.U. / White, S.J. / Lagatsky, A.A. et al. | IEEE | 2003

    Far-field patterns of Quantum Well, Quantum Dash, and Quantum Dot Laser Diodes

    Ding, Y. H. / Tan, C. L. / Hongpinyo, V. et al. | IEEE | 2008
    ), and quantum dot (Qdot) lasers to study the effect of different active gain mediums of semiconductor lasers on the optical beam quality and ...

    Fabrication of nanostructures using electron beam interference technique-a proposal

    Gunawan, O. / Ng, S.L. / Ooi, C.H. et al. | IEEE | 1999
    quantum dot fabrication. In this paper, a method based on electron beam interference, for nanostructures fabrication is proposed. Nanoscale wires ...

    Fabrication of InGaAs quantum dots by metal organic chemical vapor deposition and selective area epitaxy

    Elarde, V.C. / Swint, R.B. / Yeoh, T.S. et al. | IEEE | 2004
    We have demonstrated the fabrication of uniform arrays of quantum dots by metal organic chemical vapor deposition using electron beam ...

    External feedback effects on a quantum dot laterally loss coupled distributed feedback laser

    Su, H. / Malloy, K.J. / Lester, L.F. et al. | IEEE | 2003
    The critical external feedback ratio for coherence collapse in a quantum dot laterally loss coupled distributed feedback (QD LLC DFB) laser ...

    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 ...

    Exciton Rabi oscillation in single quantum dot: temporal measurement of oscillation and corresponding energy level splitting

    Kamada, H. / Ando, H. / Takagahara, T. et al. | IEEE | 2001
    A spectroscopic method, which enables characterization of a single isolated quantum dot and quantum wave function interferometry is applied ...

    Excitation induced polarization decay in semiconductor quantum dots

    Schneider, H.C. / Chow, W.W. / Koch, S.W. | IEEE | 2005
    Excitation induced polarization dephasing in semiconductor quantum-dots is computed using a microscopic approach. The Coulomb interaction ...

    Excitation dependence of lateral beam width in a quantum-dot laser

    Schneider, H.C. / Chow, W.W. | IEEE | 2001
    We investigate the influence of the quantum-dot active material on the lateral field distribution in an edge-emitting geometry. We use the ...

    Evidence for reduced thermal conductivity in quantum dot active region from chirp characteristics in InGaAs/GaAs quantum dot lasers

    Tan, H. / Kamath, K. / Bhattacharya, R. et al. | IEEE | 2004
    This study presents evidence for reduced thermal conductivity in quantum dot (QD) active region from chirp characteristics in InGaAs/GaAs ...

    Epitaxial growth and physics of nanostructures for quantum dot lasers

    Arakawa, Y. | IEEE | 1996
    We succeeded in the first demonstration of a vertical microcavity quantum dot laser operated at 77K. The microcavity (/spl lambda/=985nm ...

    Enhancement of resonant Raman scattering from ZnO quantum dots

    Wen-Feng Hsieh, / Hsu-Cheng Hsu, / Hsin-Ming Cheng, et al. | IEEE | 2005
    Efficient resonant Raman scattering (RRS) were observed in ZnO quantum dots (ZnO-QDs). The size dependent shift of UV-emission reveals ...

    Enhanced Terahertz Emission from InAs Quantum Dots on GaAs

    Park, H. / Kim, J. / Moon, K. et al. | IEEE | 2006
    pulsed THz radiation for time-domain THz spectroscopy and THz imaging. We show that InAs quantum dots on GaAs can be used to significantly ...

    Enhanced mode extraction in AlO/sub x//GaAs microcavity pillars and circular gratings

    Su, M. / Mirin, R. | IEEE | 2005
    Here we report enhanced spontaneous emission intensity in AlOx/GaAs micropillars with InGaAs quantum dot (QD) ensemble emitters, measured ...

    Engineering the /spl alpha/-factor in quantum dot-in-a-well lasers

    Ukhanov, A.A. / Stinz, A. / Eliseev, P.G. et al. | IEEE | 2004
    The linewidth enhancement factor in quantum dot (QD) in a quantum well (QW) laser structures was observed to decrease from 2.5 to 1 as ...

    Engineering of absorbing medium for quantum dot infrared photodetectors

    Yakimov, M. / Sergeev, A. / Pogrebnyak, V. et al. | SPIE | 2013
    relatively high density of quantum dots, small concentration of defects related to quantum dot growth, and suppressed carrier capture by QDs ...

    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 ...

    Electron and exciton spectra in opened nanoheterosystems

    Tkach, M.V. / Holovatsky, V.A. / Berezovs'ky, Y.M. et al. | IEEE | 2003
    The theory of electron, hole and exciton spectra in the opened complicated spherical quantum dots (QD) in the medium is developed in the ...

    Electron and exciton-phonon interaction in quantum dots and wires: the peculiarities of Raman spectrum

    Tkach, M.V. / Zharkoy, V.P. / Voitsekhivska, O.M. et al. | IEEE | 2003
    symmetry of quantum dot and cylindrical quantum wire in the Raman spectra one cannot see the interface phonon repeatings. There are only the ...

    Electroluminescence from a single quantum dot at telecommunication wavelength

    Miyazawa, T. / Tatebayashi, J. / Nakaoka, T. et al. | IEEE | 2005
    We have fabricated single quantum dot light emitting diodes and observed over 1.3/spl mu/m electroluminescence for the first time. The ...

    Electroluminescence evolution of Ge quantum-dot diodes with the fold number

    Chen, K.T. / Peng, Y.H. / Hsu, C.H. et al. | IEEE | 2004