n.反射比；反射系數(shù)

The spectr al reflectance of each test specimen is measured in situ before and after exp osures. 在輻照前后對(duì)每一個(gè)試樣的光譜反射系數(shù)進(jìn)行了原位測(cè)量。

Self-similarity of the frequency spectra of fractal photonic crystals is studied.The optical transmission matrix method is used to calculate transmittance and reflectance. 摘要研究了分形康托結(jié)構(gòu)光子晶體頻譜的自相似特性，用光傳輸矩陣方法計(jì)算光的傳輸和反射系數(shù)。