Search Results - "Worlock, JM"

Measurement of the quantum of thermal conductance by Roukes, M. L, Schwab, K, Henriksen, E. A, Worlock, J. M

“…The physics of mesoscopic electronic systems has been explored for more than 15 years. Mesoscopic phenomena in transport processes occur when the wavelength or…”
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Direct thermal conductance measurements on suspended monocrystalline nanostructures by Tighe, T. S., Worlock, J. M., Roukes, M. L.

“…We describe and demonstrate a new class of devices that enable direct thermal conductance measurements on monocrystalline nanostructures. These are possible…”
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Nanoscale, Phonon-Coupled Calorimetry with Sub-Attojoule/Kelvin Resolution by Fon, W. Chung, Schwab, Keith. C, Worlock, John M, Roukes, Michael L

“…We have developed an ultrasensitive nanoscale calorimeter that enables heat capacity measurements upon minute, externally affixed (phonon-coupled) samples at…”
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Applied physics Son et lumière by Roukes, Michael L, Worlock, John M

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Thermal conductance through discrete quantum channels by Schwab, K, Arlett, J.L, Worlock, J.M, Roukes, M.L

“…We have observed a quantized limiting value of the thermal conductance for each propagating phonon channel in a one-dimensional (1D), ballistic phonon…”
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Optical spectroscopy of ultrasmall structures etched from quantum wells by KASH, K, SCHERER, A, WORLOCK, J. M, GRAGHEAD, H. G, TAMARGO, M. C

“…We have studied the photoluminescence and photoexcitation spectra of ultrasmall structures, of approximately 500 Å in dimension, which we refer to as quantum…”
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Indirect-direct anticrossing in GaAs-AlAs superlattices induced by an electric field: Evidence of Gamma -X mixing by Meynadier, M, Nahory, RE, Worlock, JM, Tamargo, MC, de Miguel JL, Sturge, MD

“…It is demonstrated that a GaAs-AlAs superlattice can be switched from indirect to direct, in both real and reciprocal spaces, by application of a modest axial…”
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Quantized thermal conductance: measurements in nanostructures by Schwab, K, Fon, W, Henriksen, E, Worlock, J.M, Roukes, M.L

“…We are performing experiments to probe directly the thermal conductance of suspended nanostructures with lateral dimensions ≈100 nm. It has been recently…”
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Time-Resolved Photoluminescence of Two-Dimensional Hot Carriers in GaAs-AlGaAs Heterostructures by Ryan, J. F., Taylor, R. A., Turberfield, A. J., Maciel, Angela, Worlock, J. M., Gossard, A. C., Wiegmann, W.

“…The picosecond time dependence of luminescence from a two-dimensional electron system following absorption of an ultrashort light pulse is studied. From…”
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Strain-induced lateral confinement of excitons in GaAs-AlGaAs quantum well microstructures by KASH, K, WORLOCK, J. M, STURGE, M. D, GRABBE, P, HARBISON, J. P, SCHERER, A, LIN, P. S. D

“…We report evidence for lateral confinement of excitons within a continuous two-dimensional GaAs-AlGaAs quantum well. The confinement to ‘‘wires’’ within the…”
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Hot-electron relaxation in GaAs quantum wells by YANG, C. H, CARLSON-SWINDLE, J. M, LYON, S. A, WORLOCK, J. M

“…The steady-state photoluminescence spectra of modulation-doped quantum wells in which the two-dimensional electrons (and holes) are heated well above the…”
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Strain-induced confinement of carriers to quantum wires and dots within an InGaAs-InP quantum well by KASH, K, BHAT, R, MAHONEY, D. D, LIN, R. S. D, SCHERER, A, WORLOCK, J. M, VAN DER GAAG, B. P, KOZA, M, GRABBE, P

“…We describe a novel method of confining carriers by deliberately creating large inhomogeneous strain patterns in a quantum well. The strain modulates the band…”
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Determination of nonradiative surface layer thickness in quantum dots etched from single quantum well GaAs/AlGaAs by CLAUSEN, E. M. JR, CRAIGHEAD, H. G, WORLOCK, J. M, HARBISON, J. P, SCHIAVONE, L. M, FLOREZ, L, VAN DER GAAG, B

“…Low-temperature cathodoluminescence spectroscopy was used to investigate the luminescence efficiency of reactive ion etched quantum dots, varying in diameter…”
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Role of electromagnetic resonances in the surface-enhanced Raman effect by LYON, S. A, WORLOCK, J. M

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Optical investigation of atomic steps in ultrathin InGaAs/InP quantum wells grown by vapor levitation epitaxy by MORAIS, P. C, COX, H. M, BASTOS, P. L, HWANG, D. M, WORLOCK, J. M, YABLONOVITCH, E, NAHORY, R. E

“…Ultrathin InGaAs/InP single quantum well structures, grown by chloride transport vapor levitation epitaxy, have been investigated by low-temperature…”
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Intrinsic bistability in an optically pumped quantum well structure by ZRENNER, A, WORLOCK, J. M, FLOREZ, L. T, HARBISON, J. P, LYON, S. A

“…We describe a new semiconductor heterostructure, configured into a bistable device that can be switched either optically or electrically. The two states…”
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Electrons in novel two-dimensional structures by Worlock, J.M

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Acceleration of Electron-Hole Drops in Germanium by a Radiation Field: Evidence for Phonon Wind by Doehler, J., Worlock, J. M.

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Laser Doppler Velocimetry of Electron-Hole Drops in Germanium by Doehler, J., Mattos, J. C. V., Worlock, J. M.

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Molecular Dynamics by Light Scattering in the Condensed Phases of Ar, Kr, and Xe by Fleury, P. A., Worlock, J. M., Carter, H. L.

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