Optical Properties of Ge_(23.5)Pb_(20)S_(56.5) Glassy System

机译：GE_（23.5）PB_（20）S_（56.5）玻璃系统的光学性质

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The spectra of refractive index and absorption coefficient in thin films of Ge_(23.5)Pb_(20)S_(56.5) glassy system were calculated on the base of analysis of transmission spectra. The refractive index has values between 2.0 and 2.6 in the spectral range between 500 nm and 1200 nm. The existence of indirect allowed transitions with energy E_g = 1.70 ± 0.01 eV and phonon energy of h w_(ph)= 0.11 eV at room temperature was found. For values of the absorption coefficient a < 10~3 sm~(-1) the fundamental absorption edge is described by exponential function known as Urbach-rule. The static structure disorder parameter w_0, is equal to 0.06 eV.

机译：基于透射光谱分析的基准计算Ge_（23.5）Pb_（20）S_（20）S_（56.5）玻璃系统的薄膜折射率和吸收系数的光谱。折射率在500nm和1200nm之间的光谱范围内的2.0和2.6之间的值。发现间接允许的间接转变为e_g = 1.70±0.01eV和室温下的Hw_（pH）= 0.11eV的敏感能量。对于吸收系数的值A <10〜3 SM〜（-1），通过称为URBACH规则的指数函数来描述基本吸收边缘。静态结构障碍参数W_0，等于0.06eV。

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《International Conference on Material Science and Engineering》|2017年|xvi868p|共5页
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Anisimova Nadezhda Ivanovna; Bordovsky Gennady Alekseevich; Castro Rene Alejandro;
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中图分类 TB3-532;
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Optical properties; Transmission spectra; Refractive index; Absorption coefficient; Urbach-rule; Absorption edge.;

机译：光学性质;透射光谱;折射率;吸收系数;urbach规则;吸收边缘。;

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Optical Properties of Ge_(23.5)Pb_(20)S_(56.5) Glassy System

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