Surface Morphology and Optical Properties of Glassy Selenium Films after Laser Modification

The results of studies of the effect of low-power He–Ne laser radiation at a wavelength of 632.8 nm on the surface morphology of ~1-μm-thick glassy (amorphous) Se films synthesized by vacuum thermal evaporation are reported. It is shown that, depending on the radiation intensity and the exposure tim...

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Bibliographic Details
Published inSemiconductors (Woodbury, N.Y.) Vol. 55; no. Suppl 1; pp. S1 - S7
Main Authors Aleksandrovich, E. V., Aleksandrovich, A. N., Bystrov, S. G., Mikheev, G. M.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.12.2021
Springer
Springer Nature B.V
Subjects
Lasers
Magnetic Materials
Magnetism
Morphology
Optical properties
Optical thickness
Phase composition
Physics
Physics and Astronomy
Radiant flux density
Radiation
Refractivity
Selenium
Thick films
Vacuum thermal evaporation
films
atomic-force microscopy
surface
nanostructures
glassy selenium
laser modification
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Summary:The results of studies of the effect of low-power He–Ne laser radiation at a wavelength of 632.8 nm on the surface morphology of ~1-μm-thick glassy (amorphous) Se films synthesized by vacuum thermal evaporation are reported. It is shown that, depending on the radiation intensity and the exposure time, the laser-induced modification of films is accompanied by different changes in their roughness and by the appearance of structures different in size and the phase composition on the film surface. The formation of submicron-ridge chains on the surface of the laser-modified films yields an increase in their reflectance and refractive index and a decrease in their optical thickness.
ISSN:1063-7826
1090-6479
DOI:10.1134/S1063782621050031