Applied Physics Letters · 1987 · 33 citations · 12 references
Natural SciencesMaterials EngineeringMaterials ScienceOptical MaterialsOpticsThin FilmsLaser PhysicsOptical Properties Of SolidsOptical Thin FilmsThin Film Optical PropertiesThin-film DepositionThin-film MaterialsAngular Distribution MeasurementAngular Distribution Of RadiationEvaporation TechnologyFilm Growth MechanismsGrowth RatesOptical Thin Film CharacterizationThin-film Growth MechanismsThin-film Optical Characterization
Selenium (Se) films were prepared by pulsed laser evaporation of the elemental powder in vacuum. Film growth rates as a function of average laser power (0.1–5 W/cm2) and wavelength (266–1064 nm) were measured. The angular distribution of evaporated material was found to be unusually narrow for wavelengths shorter than the Se absorption edge (∼600 nm). The photon efficiency for evaporation ranged from 0.4 to 0.1 atoms/photon for 266 to 1064 nm light, respectively.
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