By Vilensija (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
Photo TUD/Eckold
Photo TUD/Eckold
Langer/Klimahaus Bremerhaven 8° Ost.
Belval_2015-07-23-24
(a) Time-domain and (b) frequency-domain maps of the time-resolved Faraday signal obtained on SiO2(10nm)/Ni(40nm)/SiO2 for a Transient Grating pitch of Λ = 2.54 μm. The magnetic field is swept from positive to negative values. In panel (b) the horizontal dashed lines highlight the frequency of the TG-pumped Rayleigh Surface Acoustic Wave (RSAW) and Surface Skimming Longitudinal Wave (SSLW).