Title

Laser-initiated microchemistry in thin films: Development of new types of periodic structure

Document Type

Article

Publication Date

12-1-1985

Abstract

Decomposition of Au metallopolymer thin films induced by a scanning cw Ar+ laser leads to metallic features that, under a broad range of experimental conditions, exhibit marked periodic structure. Preliminary mechanistic studies point to a thermal decomposition pathway in which the heat released in the exothermic reaction drives the reaction front ahead of the laser-irradiated area. The spatial period is determined by laser power, scan speed, and film thickness. We argue that this mechanism is analogous to laser-initiated explosive phenomena observed in the recrystallization of amorphous semiconductors.

Publication Source (Journal or Book title)

Journal of Applied Physics

First Page

1139

Last Page

1142

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