RT Journal Article
T1 Nanoscale confinement of energy deposition in glass by double ultrafast Bessel pulses
A1 Del Hoyo Muñoz, Jesús
A1 Meyer, Remi
A1 Furfaro, Luca
A1 Courvoisier, François
AB Ultrafast laser pulses spatially shaped as Bessel beams in dielectrics create high aspect ratio plasma channels whose relaxation can lead to the formation of nanochannels. We report a strong enhancement of the nanochannel drilling efficiency with illumination by double pulses separated by a delay between 10 and 500 ps. This enables the formation of nanochannels with diameters down to 100 nm. Experimental absorption measurements demonstrate that the increase of drilling efficiency is due to an increase of the confinement of the energy deposition. Nanochannel formation corresponds to a drastic change in absorption of the second pulse, demonstrating the occurrence of a phase change produced by the first pulse. This creates a highly absorbing, long-living state. Our measurements show that it is compatible with the semi-metallization of warm dense glass which takes place within a timescale of <10 ps after the first laser pulse illumination.
PB De Gruyter
SN 2192-8614
YR 2021
FD 2021
LK https://hdl.handle.net/20.500.14352/115429
UL https://hdl.handle.net/20.500.14352/115429
LA eng
NO del Hoyo, Jesus, Meyer, Remi, Furfaro, Luca and Courvoisier, Francois. "Nanoscale confinement of energy deposition in glass by double ultrafast Bessel pulses" Nanophotonics, vol. 10, no. 3, 2021, pp. 1089-1097. https://doi.org/10.1515/nanoph-2020-0457
NO European Commission
NO Region Franche-Comté (France)
NO Université Bourgogne-Franche_Comté (France)
NO Renatech Network
DS Docta Complutense
RD 7 jun 2025