This article is cited in 8 papers

Brief Communications

Influence of an increase in the transparency on the intense evaporation of metals by optical radiation

R. V. Karapetyan, A. A. Samokhin


Abstract: It is shown that the presence of a temperature maximum inside a superheated liquid metal layer imposes restrictions on the position and size of a possible region of enhanced transparency ("bleached region"), where the absorption coefficient a of the incident radiation is assumed to be small. The maximum steady-state thickness of a bleached layer is much less than the value of α^–1 in this layer. On the other hand, the optical thickness of the surface layer which retains its metallic properties is not small, i.e., the appearance of a bleached region cannot generally explain the change in the reflection coefficient of an illuminated target under steady-state intense evaporation conditions.

PACS: 78.20.Ci, 61.80.Ba, 61.82.Bg, 64.70.Hz

Received: 22.02.1973

 English version: Soviet Journal of Quantum Electronics, 1975, 4:9, 1141–1142