Time-Resolved Measurements of Sum-Frequency Generation Strongly Enhanced in (113)B GaAs/AlAs Coupled Multilayer Cavity
Time-Resolved Measurements of Sum-Frequency Generation Strongly Enhanced in (113)B GaAs/AlAs Coupled Multilayer Cavity
复制标题
(113)B GaAs/AlAs 耦合多层腔中强烈增强的和频生成的时间分辨测量
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
T. Isu
中科院分区：
文献类型：
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作者：
Fumiya Tanaka;T. Takimoto;K. Morita;T. Kitada;T. Isu
对生长在（113）B取向GaAs衬底上的GaAs/AlAs耦合多层腔结构中两个腔模的和频产生（SFG）进行了时间分辨测量。强增强的SFG和二次谐波产生（SHG）信号已被证明是由两个腔模式使用100 fs的激光脉冲的同时激发。在时间分辨测量中，样品被两束100 fs的激光束以一定的时间延迟照射，并使用小狭缝检测通过组合两束激光产生的SFG和SHG信号。依赖于延迟时间的测量结果表明，SFG和SHG信号衰减的光子寿命（0.6 ps）的耦合多层腔，和周期（0.3 ps）对应于两个腔模式之间的光频差（3.3 THz）的振荡行为是显着的只有SFG。利用模拟得到的双高斯脉冲激励下耦合腔内的光电场很好地解释了实验结果。
Time-resolved measurements of sum-frequency generation (SFG) of two cavity modes, which were realized in a GaAs/AlAs coupled multilayer cavity structure grown on a (113)B-oriented GaAs substrate, were performed. Strongly enhanced SFG and second-harmonic generation (SHG) signals have been demonstrated by the simultaneous excitation of two cavity modes using 100 fs laser pulses. In the time-resolved measurements, the sample was irradiated by two 100 fs laser beams with a time delay and the SFG and SHG signals generated by combining two beams were detected using a small slit. The delay-time-dependent measurements have revealed that the SFG and SHG signals decay with the photon lifetime (0.6 ps) of the coupled multilayer cavity, and the oscillating behavior with the period (0.3 ps) corresponding to the optical frequency difference (3.3 THz) between two cavity modes is significant only for the SFG. The experimental results were well explained by the simulated light electric field inside the coupled cavity under two Gaussian pulse excitation.
影响因子：
3.8
作者：
Belkin, Mikhail A.;Fan, Jonathan A.;Linfield, Edmund H.
通讯作者：
Linfield, Edmund H.