TY - GEN
T1 - Ultrafast Negative Diffusion in gold films
AU - Block, A.
AU - Yu, R.
AU - Un, I. W.
AU - Varghese, S.
AU - Liebel, M.
AU - van Hulst, N. F.
AU - Fan, S.
AU - Tielrooij, K. J.
AU - Sivan, Y.
N1 - Publisher Copyright: © Optica Publishing Group 2024, © 2024 The Author(s)
PY - 2024/1/1
Y1 - 2024/1/1
N2 - Using ultrafast thermo-modulation microscopy,we show that the spatio-temporal heat diffusion in gold films has an initial ps-scale, electron-dominated diffusion, followed by an unexpected negative diffusion stage, and only then a much slower phonon-dominated diffusion.
AB - Using ultrafast thermo-modulation microscopy,we show that the spatio-temporal heat diffusion in gold films has an initial ps-scale, electron-dominated diffusion, followed by an unexpected negative diffusion stage, and only then a much slower phonon-dominated diffusion.
KW - Electro-optical waveguides
KW - Electron microscopy
KW - Films
KW - Gold
KW - Heating systems
KW - Lasers and electrooptics
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U2 - https://doi.org/10.1364/cleo_fs.2024.fm1n.4
DO - https://doi.org/10.1364/cleo_fs.2024.fm1n.4
M3 - Conference contribution
T3 - 2024 Conference on Lasers and Electro-Optics, CLEO 2024
BT - 2024 Conference on Lasers and Electro-Optics, CLEO 2024
T2 - 2024 Conference on Lasers and Electro-Optics, CLEO 2024
Y2 - 7 May 2024 through 10 May 2024
ER -