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Showing 1 to 2 of 2 for “"Photoinduced strain"”.
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Photoexcited hypersonic surface acoustic waves propagating under periodic metal grating
Photoinduced strain gradients in nanometer length scales using periodically patterned grating on a substrate is an attractive way of producing coherent surface acoustic waves (SAW). Ultrafast laser pulses incident on this structure produce constrasting thermal strain in the grating and the …
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Nanoscale Coherent-Acoustic-Phonon Dynamics in Molybdenum Disulfide Using Ultrafast Electron Microscopy
… electronic band structure) via layer number and strain, and thus attracts interests in a broad range of device applications. Defects have been demonstrated to impact local properties and dynamics in a spatial range from a single atom to hundreds of nanometers. The combined nanometer spatial …