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首页> 外文期刊>Applied physics express >A Gaas/aias Multilayer Cavity With Self-assembled Inas Quantum Dots Embedded In Strain-relaxed Barriers For Ultrafast All-optical Switching Applications
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A Gaas/aias Multilayer Cavity With Self-assembled Inas Quantum Dots Embedded In Strain-relaxed Barriers For Ultrafast All-optical Switching Applications

机译:具有自组装Inas量子点的Gaas / aias多层腔体,其嵌入在应变松弛栅中,用于超快全光开关应用

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摘要

An optical Kerr signal has been simulated for GaAs/AIAs multilayer cavity structures by using the self-consistent transfer matrix method. Enhancement of the Kerr signal intensity was clearly demonstrated for the cavity mode (λ ~ 1504 nm) owing to the strong optical field in the multilayer cavity. The Kerr signal intensity can be further enhanced with the use of a higher nonlinear refractive index only for the half-wavelength (λ/2) cavity layer. We propose a GaAs/AIAs multilayer structure with the λ/2 cavity layer containing InAs quantum dots embedded in strain-relaxed barriers for an ultrafast optical Kerr gate switch with extremely low switching energy.
机译:通过使用自洽转移矩阵方法,对GaAs / AIAs多层腔结构的光学Kerr信号进行了仿真。由于多层腔中有很强的光场,在腔模(λ〜1504 nm)中,Kerr信号强度明显增强。仅对于半波长(λ/ 2)腔层使用较高的非线性折射率,即可进一步提高Kerr信号强度。我们提出了一种GaAs / AIAs多层结构,其中的λ/ 2腔层包含嵌入应变松弛势垒中的InAs量子点,用于开关能量极低的超快光学Kerr栅极开关。

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