Femtosecond non-diffracting Bessel beams and controlled nanoscale ablation

We review our recent results applying the stable nonlinear propagation of nondiffracting Bessel beams to femtosecond laser ablation in dielectric materials. We describe our spatial light modulator setup that allows for flexible and reconfigurable beam profile synthesis, we interpret the physics in t...

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Bibliographic Details
Main Authors: Bhuyan, M. K., Courvoisier, F., Jacquot, M., Lacourt, P.-A, Froehly, L., Salut, R., Furfaro, L., Dudley, J. M.
Format: Conference Proceeding
Language:English
Subjects:
Laser ablation
Laser beams
Laser theory
Machining
Materials
Surface cleaning
Ultrafast optics
Online Access:Request full text
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Summary:We review our recent results applying the stable nonlinear propagation of nondiffracting Bessel beams to femtosecond laser ablation in dielectric materials. We describe our spatial light modulator setup that allows for flexible and reconfigurable beam profile synthesis, we interpret the physics in terms of the formation of a steady plasma channel, and we present results of both multishot and single shot machining.
DOI:10.1109/URSIGASS.2011.6050591