Optical Properties of Single-Crystal Be from 0.12 to 4.5 eV

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1973-04-01
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Weaver, J. H.
Rosei, R.
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Physics and Astronomy
Physics and astronomy are basic natural sciences which attempt to describe and provide an understanding of both our world and our universe. Physics serves as the underpinning of many different disciplines including the other natural sciences and technological areas.
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Measurements of the optical absorptivity of single crystals of Be have been carried out in the energy range 0.12-4.5 eV with polarized light. The infrared absorptivity is considerably lower than previously reported. Evidence is presented for the onset of interband transitions for both polarizations beginning near 0.4 eV. A shoulder is noted in the absorptivity for E⊥cat about 1.3 eV. The absorptivity data are Kramers-Kronig analyzed and the optical constants are determined. An interpretation based on the band structure of Tripp, Everett, Gordon, and Stark is presented.

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This article is from Physical Review B 7 (1973): 3537, doi:10.1103/PhysRevB.7.3537. Posted with permission.

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Mon Jan 01 00:00:00 UTC 1973
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