@article{fdi:010054315, title = {{I}n situ characterization of infrared femtosecond laser ablation in geological samples. {P}art {A} : the laser induced damage}, author = {{D}'{A}bzac, {F}. {X}. and {S}eydoux-{G}uillaume, {A}. {M}. and {C}hmeleff, {J}. and {D}atas, {L}. and {P}oitrasson, {F}ranck}, editor = {}, language = {{ENG}}, abstract = {{I}nfrared femtosecond laser induced damage has been studied in order to determine, with analytical protocols, the processes involved in laser ablation in this regime. {T}ransmission {E}lectron {M}icroscopy ({TEM}) coupled with {F}ocused {I}on {B}eam ({FIB}) milled cross-sections of natural ablated monazite were used. {C}raters were formed using {N} = 1 and 3 shots, {E}(0) = 0.1 and 0.8 m{J} per pulse and tau = 60 fs. {O}bservations revealed that laser settings induce little changes in the nature and size of damaged structures. {T}he crater bottom forms a similar to 0.5 mm layer composed of melted and recrystallized monazite grains, and spherical similar to 10 nm voids. {T}he underlying sample shows lattice distortions, progressively attenuated with depth, typical of mechanical shocks (thermoelastic relaxation and plasma recoil pressure). {N}o chemical difference appears between these two domains, excluding preferential vaporization and thus laser induced chemical fractionation. {C}orrelations with existing molecular dynamics ({MD}) simulations indicate that the deep distorted lattice probably undergoes spallation whereas the upper layer rather goes through homogeneous nucleation. {N}evertheless, these processes are not pushed forward enough to induce matter removal in the present conditions. {I}n consequence, photomechanical fragmentation and vaporization, requiring higher energy density states, would rather be the main ablation mechanisms. {T}his hypothesis was supported by an additional study focused on the laser produced aerosols. {F}urther links to {LA}-{ICP}-{MS} measurements can then be developed.}, keywords = {}, booktitle = {}, journal = {{J}ournal of {A}nalytical {A}tomic {S}pectrometry}, volume = {27}, numero = {1}, pages = {99--107}, ISSN = {0267-9477}, year = {2012}, DOI = {10.1039/c1ja10153f}, URL = {https://www.documentation.ird.fr/hor/fdi:010054315}, }