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1)  grating efficiency
光栅效率
2)  gate efficiency
栅效率
1.
Many important factors,such as "trans-conductance per unit channel width" θ,"gate efficiency"η,"sensitivity factor" D,and "intrinsic static gain" μ0,that may be used to describe different aspects of the electrical performance of an SIT are first defined.
首次定义了从不同角度表征SIT电特性的重要因子,如单位沟道宽度跨导、栅效率、灵敏度因子和本征静电增益。
3)  cascade efficiency
叶栅效率
1.
As a whole,by heat steam blowing,the cascade efficiency has a decrease up to 4%.
数值分析表明:压力面和吸力面吹扫缝隙后出现严重的流动分离;扩压区增大,使压力损失增大;尾缘吹扫需对叶片尾缘加厚,但这却导致了严重的尾迹损失;热气吹扫造成叶栅效率降低高达4%。
4)  grating effect
光栅效应
5)  grating frequency
光栅频率
1.
Through theoretic analysis and numerical simulations, it is proved that the optimum thickness of PTR Bragg grating exists, and its diffraction efficiency increases with the decrease of grating frequency and wavelength bandwidth.
通过理论分析和数值仿真,结果表明PTR布拉格光栅存在最佳厚度,并且光栅衍射效率随着光栅频率和组束波长带宽的减小而增大。
2.
In order to increase the number of available fiber lasers,meanwhile guarantee the diffraction efficiency to be at some high level,the grating frequency f should be chosen betwe.
为了增加可参与组束的光纤激光器数目,同时确保较高的光栅衍射效率,应将光栅频率f控制在200~400mm-1,光栅厚度t在1~2mm,理论上可以获得10kW量级的组束激光。
6)  refractive index grating
折射率光栅
1.
When irradiated by two-beams, the sample can set up refractive index grating with the diffraction efficiency ove.
样品在两相干光束作用下,可建立光折射率光栅,其衍射效率可超过30%,实现了光全息存储。
2.
When irradiated by two-beams, the sample can set up refractive index grating, and the optical holographic storage was achieved.
而且样品在双相干光束作用下,可建立光折射率光栅,并实现了光全息存储。
补充资料:光栅效率
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性质:在光栅衍射的任一级光谱中,某一波长的衍射光强度,与能够被镀铝(或银)反射镜所反射到该波长位置,而未经色散的光的强度之比,称为光栅效率。质量好的闪耀光栅,其光栅效率可高达90%。

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