Laser-Induced Surface Diffusion

Cheng-Hsiao Wu; Jonathan I. Gittleman

doi:10.1063/1.333334

Laser-Induced Surface Diffusion

Cheng-Hsiao Wu
, Jonathan I. Gittleman

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A Brownian motion model for laser-induced surface diffusion is proposed to account for the kinetics of surface transport of the evaporated molecules from a thin discontinuous film under a focused laser beam. The model is solved exactly where the evaporation rate of the molecules is assumed to be proportional to the temperature rise above the ambient of the absorber layer. The surface diffusion constant and molecular velocity are obtained by comparing the results of calculations with transmission electron micrographs of recorded pits in Te trilayer opticial discs. These values are in good agreement with Einstein's relation.

Original language	American English
Journal	Journal of Applied Physics
Volume	55
DOIs	https://doi.org/10.1063/1.333334
State	Published - Apr 1 1984

Keywords

Diffusion - Mathematical Models
Laser Beams - Effects
Surfaces

Disciplines

Electrical and Computer Engineering

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Cite this

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title = "Laser-Induced Surface Diffusion",

abstract = " A Brownian motion model for laser-induced surface diffusion is proposed to account for the kinetics of surface transport of the evaporated molecules from a thin discontinuous film under a focused laser beam. The model is solved exactly where the evaporation rate of the molecules is assumed to be proportional to the temperature rise above the ambient of the absorber layer. The surface diffusion constant and molecular velocity are obtained by comparing the results of calculations with transmission electron micrographs of recorded pits in Te trilayer opticial discs. These values are in good agreement with Einstein's relation.",

keywords = "Diffusion - Mathematical Models, Laser Beams - Effects, Surfaces",

author = "Cheng-Hsiao Wu and Gittleman, \{Jonathan I.\}",

year = "1984",

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T1 - Laser-Induced Surface Diffusion

AU - Wu, Cheng-Hsiao

AU - Gittleman, Jonathan I.

PY - 1984/4/1

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N2 - A Brownian motion model for laser-induced surface diffusion is proposed to account for the kinetics of surface transport of the evaporated molecules from a thin discontinuous film under a focused laser beam. The model is solved exactly where the evaporation rate of the molecules is assumed to be proportional to the temperature rise above the ambient of the absorber layer. The surface diffusion constant and molecular velocity are obtained by comparing the results of calculations with transmission electron micrographs of recorded pits in Te trilayer opticial discs. These values are in good agreement with Einstein's relation.

AB - A Brownian motion model for laser-induced surface diffusion is proposed to account for the kinetics of surface transport of the evaporated molecules from a thin discontinuous film under a focused laser beam. The model is solved exactly where the evaporation rate of the molecules is assumed to be proportional to the temperature rise above the ambient of the absorber layer. The surface diffusion constant and molecular velocity are obtained by comparing the results of calculations with transmission electron micrographs of recorded pits in Te trilayer opticial discs. These values are in good agreement with Einstein's relation.

KW - Diffusion - Mathematical Models

KW - Laser Beams - Effects

KW - Surfaces

UR - https://scholarsmine.mst.edu/ele_comeng_facwork/3330

U2 - 10.1063/1.333334

DO - 10.1063/1.333334

M3 - Article

SN - 1089-7550

VL - 55

JO - Journal of Applied Physics

JF - Journal of Applied Physics

ER -

Laser-Induced Surface Diffusion

Abstract

Keywords

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