The band gap, linear refractive indices and absorption coefficients fundamental optical constants of the film were obtained through optical transmittance measurements.
用光学透射测量方法得到了该薄膜材料的基本光学常数（带隙、线性折射率、线性吸收系数）。
2
Transmission conversion and absorption (dissipation) of earthquake energy are the fundamental characteristics of the structural seismic response.
能量的传递、转化与吸收(消耗)是结构地震反应的基本特征。
3
The basic structure and the fundamental principle of semiconductor saturable absorption mirrors (SESAM) that are used for passive mode-locking solid-state lasers are introduced.