Fundamentals of picosecond laser ultrasonics.

@article{Matsuda2015FundamentalsOP,
  title={Fundamentals of picosecond laser ultrasonics.},
  author={Osamu Matsuda and M. C. Larciprete and Roberto Li Voti and Oliver B Wright},
  journal={Ultrasonics},
  year={2015},
  volume={56},
  pages={3-20}
}
The aim of this article is to provide an introduction to picosecond laser ultrasonics, a means by which gigahertz-terahertz ultrasonic waves can be generated and detected by ultrashort light pulses. This method can be used to characterize materials with nanometer spatial resolution. With reference to key experiments, we first review the theoretical background for normal-incidence optical detection of longitudinal acoustic waves in opaque single-layer isotropic thin films. The theory is extended… CONTINUE READING

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