232 resultados para 773-10


Relevância:

20.00% 20.00%

Publicador:

Resumo:

阐述了电子回旋共振等离子体化学气相沉积法淀积半导体器件端面光学膜的优良特性。介绍了淀积反射率小于10~(-4)的1310nm半导体激光器端面增透膜技术,并对这种技术的优点和两端淀积增透膜后的激光器特性进行了讨论。

Relevância:

20.00% 20.00%

Publicador:

Resumo:

于2010-11-23批量导入

Relevância:

20.00% 20.00%

Publicador:

Relevância:

20.00% 20.00%

Publicador:

Resumo:

We propose a simple approach to generate a high quality 10 GHz 1.9 ps optical pulse train using a semiconductor optical amplifier and silica-based highly nonlinear fiber. An optical pulse generator based on our proposed scheme is easy to set up with commercially available optical components. A 10 GHz, 1.9 ps optical pulse train is obtained with timing jitter as low as 60 fs over the frequency range 10 Hz-1 MHz. With a wavelength tunable CW laser, a wide wavelength tunable span can be achieved over the entire C band. The proposed optical pulse generator also can operate at different repetition rates from 3 to 10 GHz.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

报道了用ECR离子源的高电荷态离子~(40)Ar~(10+)入射到p型Si表面的实验研究,通过实验测量到的Si原子和Si~(2+)离子的200nm-1000nm光谱,研究了谱线产生的机理。实验结果表明:低速高电荷态离子与固体表面相互作用中,可有效地激发原子和离子的特征谱线,分析了这一现象和相互作用过程的发光机理。

Relevância:

20.00% 20.00%

Publicador:

Resumo:

IEECAS SKLLQG

Relevância:

20.00% 20.00%

Publicador:

Resumo:

介绍了采用两级分子泵串联系统获得 10 - 9Pa真空度的实验研究。实验证明 ,通过串联一台分子泵 ,可以有效地提高系统对氢气的压缩比 ,显著提高系统的极限压强。

Relevância:

20.00% 20.00%

Publicador:

Resumo:

报道了利用兰州重离子加速器国家实验室ECR离子源提供的高电荷态离子~(40)Ar~(10+)入射到Al和p型Si表面所产生的Al,Si,Ar原子的200~1000nm特征光谱的实验测量结果。结果表明,低速高电荷态离子与团体表面原子相互作用可有效地激发靶原子和靶离子的特征谱线,而且由于发射二次电子的无辐射退激与辐射光子退激过程的竞争,使得在p型Si表面上Ar原子的光谱强度总体大于在Al表面上的光谱强度。