Dispersive Properties of Optical Constants of Some Metallic Oxide Thin Films in the Mid-Infrared Regions

We apply the Gaussian-oscillator model of the infrared dielectric function of ZnS materials prepared by hot pressing (HP) and chemical vapor deposition (CVD). Chemical factor analysis of the 700 to 1300 cm−1 spectral range shows 3 oscillators in the HP material and 4 in that prepared by CVD. The origin of these oscillators is identified. In both materials, high-order transverse-optical (TO) and longitudinal-acoustic (LA) vibration modes are excited. In HP-ZnS, the four oscillators are related to the 3TO, 1TO + 2LA, 3LA, and 4LA modes. Only the first three are found in the CVD material. These results clarify the physical mechanisms of lattice absorption of ZnS in this spectral range.

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Research Progress on Absorption Properties of Oxide Optical Films

孔

2023

AMC

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Dispersive Properties of Optical Constants of Some Metallic Oxide Thin Films in the Mid-Infrared Regions

Cited by 4 publications

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Study on characterization method of optical constants of germanium thin films from absorption to transparent region

Study on characterization method of optical constants of germanium thin films from absorption to transparent region

Physical model of the infrared dielectric function of zinc sulfide

Research Progress on Absorption Properties of Oxide Optical Films

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