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首页> 外文会议>Electro-Optical and Infrared Systems: Technology and Applications IV; Proceedings of SPIE-The International Society for Optical Engineering; vol.6737 >OPTICAL NONLINEAR SWITCHES BASED ON NANOCRYSTALLINE SILICON
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OPTICAL NONLINEAR SWITCHES BASED ON NANOCRYSTALLINE SILICON

机译：基于纳米晶硅的光学非线性开关

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摘要

Shg spectra from silicon films with different average size of nanocrystals was studied as possible material for active channel in nonlinear optical switches. It is seen the spectral peak with energy 3.26 eV is related to defects appeared in interface area silicon-silicon dioxide. For films with small silicon crystals (less than 20 nm) the nonlinear optical response contains two spectral peaks. The second peak is caused by optical response from nanocrystal grain boundary that contain oxygen atoms incorporated in silicon as dipoles inside film. The optical nonlinear switch device based on the nonlinear optical response of SiO_x media inside film was proposed. Also, the silicon film with quartz micro-clusters were investigated as material for making the nonlinear optical transmitter device. The PL spectra of films were, also, studied to observe the various silicon and silicon dioxide fractions. The efficiency of transmission of radiation is sufficient.
机译：研究了具有不同平均尺寸的纳米晶体的硅膜的Shg光谱，作为非线性光学开关中有源通道的可能材料。可以看出，能量为3.26 eV的光谱峰与在硅-二氧化硅界面区域中出现的缺陷有关。对于具有小硅晶体（小于20 nm）的薄膜，非线性光学响应包含两个光谱峰。第二个峰值是由纳米晶界产生的光学响应引起的，该晶界包含掺入硅中的氧原子作为薄膜内部的偶极子。提出了一种基于薄膜内部SiO_x介质非线性光学响应的​​光学非线性开关装置。此外，研究了具有石英微团簇的硅膜作为制造非线性光学发射器装置的材料。还研究了膜的PL光谱，以观察各种硅和二氧化硅部分。辐射的传输效率足够。

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