SIMULTANEOUS MEASUREMENT OF ELECTRON AND HOLE ESCAPE TIMES FROM BIASED SINGLE QUANTUM-WELLS

J A  CAVAILLES; D A B  MILLER; J E  CUNNINGHAM; P L K  WA; A  MILLER

SIMULTANEOUS MEASUREMENT OF ELECTRON AND HOLE ESCAPE TIMES FROM BIASED SINGLE QUANTUM-WELLS

J A CAVAILLES, D A B MILLER, J E CUNNINGHAM, P L K WA, A MILLER

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article

Abstract

Picosecond pump probe measurements on waveguides containing a single GaAs/GaAlAs quantum well have enabled us to determine for the first time both electron and hole escape times from biased quantum wells. Contributions from excitonic saturation and field screening by photogenerated carriers can be clearly identified in the nonlinear transition signal and are quantitatively modeled. Preliminary analysis suggests that thermally assisted escape is dominant at room temperature, but discrepancies are found with conventional thermionic emission models.

Original language	English
Pages (from-to)	426-428
Number of pages	3
Journal	Applied Physics Letters
Volume	61
Issue number	4
Publication status	Published - 27 Jul 1992

Cite this

CAVAILLES, J. A., MILLER, D. A. B., CUNNINGHAM, J. E., WA, P. L. K., & MILLER, A. (1992). SIMULTANEOUS MEASUREMENT OF ELECTRON AND HOLE ESCAPE TIMES FROM BIASED SINGLE QUANTUM-WELLS. Applied Physics Letters, 61(4), 426-428.

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abstract = "Picosecond pump probe measurements on waveguides containing a single GaAs/GaAlAs quantum well have enabled us to determine for the first time both electron and hole escape times from biased quantum wells. Contributions from excitonic saturation and field screening by photogenerated carriers can be clearly identified in the nonlinear transition signal and are quantitatively modeled. Preliminary analysis suggests that thermally assisted escape is dominant at room temperature, but discrepancies are found with conventional thermionic emission models.",

author = "CAVAILLES, {J A} and MILLER, {D A B} and CUNNINGHAM, {J E} and WA, {P L K} and A MILLER",

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AU - CUNNINGHAM, J E

AU - WA, P L K

AU - MILLER, A

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N2 - Picosecond pump probe measurements on waveguides containing a single GaAs/GaAlAs quantum well have enabled us to determine for the first time both electron and hole escape times from biased quantum wells. Contributions from excitonic saturation and field screening by photogenerated carriers can be clearly identified in the nonlinear transition signal and are quantitatively modeled. Preliminary analysis suggests that thermally assisted escape is dominant at room temperature, but discrepancies are found with conventional thermionic emission models.

AB - Picosecond pump probe measurements on waveguides containing a single GaAs/GaAlAs quantum well have enabled us to determine for the first time both electron and hole escape times from biased quantum wells. Contributions from excitonic saturation and field screening by photogenerated carriers can be clearly identified in the nonlinear transition signal and are quantitatively modeled. Preliminary analysis suggests that thermally assisted escape is dominant at room temperature, but discrepancies are found with conventional thermionic emission models.

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JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

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