Outputs (2)

Temporal superoscillation of sub-terahertz coherent acoustic phonons (2020)
Journal Article
Brehm, S., Akimov, A. .., Campion, R. P., & Kent, A. J. (2020). Temporal superoscillation of sub-terahertz coherent acoustic phonons. Physical Review Research, 2(2), https://doi.org/10.1103/PhysRevResearch.2.023009

We observe coherent acoustic phonon superoscillations at sub-terahertz frequencies. The superoscillations result from the interference of optically excited coherent longitudinal acoustic phonon modes in a GaAs/AlGaAs superlattice. The superoscillatio... Read More about Temporal superoscillation of sub-terahertz coherent acoustic phonons.

Large non-thermal contribution to picosecond strain pulse generation using the photo-induced phase transition in VO2 (2020)
Journal Article
Mogunov, I. A., Lysenko, S., Fedianin, A. E., Fernández, F. E., Rúa, A., Kent, A. J., …Kalashnikova, A. M. (2020). Large non-thermal contribution to picosecond strain pulse generation using the photo-induced phase transition in VO2. Nature Communications, 11(1), Article 1690. https://doi.org/10.1038/s41467-020-15372-z

Picosecond strain pulses are a versatile tool for investigation of mechanical properties of meso-and nano-scale objects with high temporal and spatial resolutions. Generation of such pulses is traditionally realized via ultrafast laser excitation of... Read More about Large non-thermal contribution to picosecond strain pulse generation using the photo-induced phase transition in VO2.