the bandgap of the double heterostructure was only 0. 86μm, yet up to 1ma of photo-current was detected. 双异质结的带隙仅为086m,迄今探测到的光电达1mA。
6 . the effect of the dh on the hb - led is analyzed 全面分析双异质结结构( dh )在hb - led中的重要作用。
By thermal conducting method and the finite difference method , we also analyzed the heat diffusion in different material structures 我们分析了材料结构、脊波导高度、材料波导层及双异质结上限制层厚度和折射率。
In this dissertation , the design of the boa - rype waveguide optical switch mainly consists of two parts : 1 . the design of rib waveguide and structure 本文所设计的gaas gaalas双异质结材料boa光开关的设计包括两部分:脊波导和开关结构设计以及电极结构的设计。
In this dissertation , the boa device with high extinction - ration , low drive - voltage , high - speed switch and insensitive to wide range of light wavelength , has been developed on double - heterostructure gaas / gaaias 本研究就是在gaas gaalas双异质结材料上设计高消光比,低驱动电压,高速度,较宽范围工作波长不敏感的高性能boa光开关。