Quantum Optoelectronics

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Picosecond photoluminescence measurements of Landau level lifetimes and time dependent Landau level linebroadening in modulation-doped GaAs-GaAlAs multiple quantum wells

Physica B+C 134:1-3 (1985) 318-322

Authors:

JF Ryan, RA Taylor, AJ Turberfield, JM Worlock

Abstract:

We report the first picosecond time-resolved photoluminescence measurementsof hot-carrier relaxation in a modulation-doped GaAs-GaAlAs MQW in the presence of strong magnetic fields. We have measured the lifetimes of carriers in excited Landau levels and have determined the time-dependent carrier temperature. We find that the cooling rate is slower in applied field tthan at B=0; also there is a significant increase in the cooling rate for B {greater-than or approximate} 10T. We report also the observation of highly time-dependent linewidths of the Landau levels. © 1985.
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Hot Electron Relaxation and Trapping in Modulation — Doped GaAs/GaAlAs Multiple Quantum Well Heterostructures

Springer Nature (1985) 567-570

Authors:

JF Ryan, RA Taylor, AJ Turberfield, Angela Maciel, JM Worlock, AC Gossard, W Wiegmann
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PICOSECOND PHOTOLUMINESCENCE MEASUREMENTS OF LANDAU-LEVEL LIFETIMES AND TIME-DEPENDENT LANDAU-LEVEL LINBROADENING IN MODULATION-DOPED GAAS-GAALAS MULTIPLE QUANTUM WELLS

PHYSICA B & C 134:1-3 (1985) 318-322

Authors:

JF RYAN, RA TAYLOR, AJ TURBERFIELD, JM WORLOCK
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PICOSECOND STUDIES OF LUMINESCENCE IN POLYTHIOPHENE AND POLYDIACETYLENE

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS 18:26 (1985) L843-L847

Authors:

KS WONG, W HAYES, T HATTORI, RA TAYLOR, JF RYAN, K KANETO, Y YOSHINO, D BLOOR
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Stimulated Recombination and the Dynamic Mott Transition in GaTe

Springer Nature (1985) 1371-1374

Authors:

CN Ironside, RA Taylor, JF Ryan
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