Scanning ultrafast Sagnac interferometry for imaging two-dimensional surface wave propagation
Scanning ultrafast Sagnac interferometry for imaging two-dimensional surface wave propagation
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DOI：
10.1063/1.2194518
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发表时间：
2006-04-01
影响因子：
1.6
通讯作者：
Wright, OB
中科院分区：
文献类型：
--
作者：
Tachizaki, T;Muroya, T;Wright, OB
我们描述了一种改进的二维光学扫描技术相结合的超快Sagnac干涉延迟探头成像表面波传播。我们演示了这个系统的操作，它涉及到使用一个单一的聚焦物镜，通过监测表面声波传播的不透明基板上的皮秒时间和微米横向分辨率。与以前的类似样品的设置相比，横向分辨率提高了3倍。(c)2006年，美国物理学会。
We describe an improved two-dimensional optical scanning technique combined with an ultrafast Sagnac interferometer for delayed-probe imaging of surface wave propagation. We demonstrate the operation of this system, which involves the use of a single focusing objective, by monitoring surface acoustic wave propagation on opaque substrates with picosecond temporal and micron lateral resolutions. An improvement in the lateral resolution by a factor of 3 is achieved in comparison with previous setups for similar samples. (c) 2006 American Institute of Physics.