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）。
The ultraviolet absorption peak narrows, absorption intensity increases, the absorption margin becomes steep and moves to longer wavelength, the optical band gap decreases as well.
紫外吸收峰变窄，强度增加，吸收边变得陡峭并向长波方向移动，光学带隙降低。
It also showed that the optical absorption edge of the annealed film appeared shifted towards the longer wavelength side and the band gap decreased by 0.
光学性质显示退火处理的薄膜吸收边缘明显的向长波的方向移动，发生红移现象，而且禁带宽度减少了0。
This paper reviews the research progress in both theoretical and experimental aspects of band-to-band optical absorption transition effect in narrow gap semiconductor HgCdTe.
本文主要论述窄禁带半导体碲镉汞的带间光吸收跃迁的理论和实验。
This paper reviews the research progress in both theoretical and experimental aspects of band-to-band optical absorption transition effect in narrow gap semiconductor HgCdTe.
本文主要论述窄禁带半导体碲镉汞的带间光吸收跃迁的理论和实验。
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