Abstract
Ultrashort-pulsed laser direct writing can be useful for a 3D material processing. Especially the localized form-birefringence originated from self-assembled nanostructure in isotropic material (i.e. SiO2 and GeO2 glass) was demonstrated.
Highlights
Material processing with ultrafast lasers has recently attracted considerable interest [1] due to a wide range of applications including laser surgery [2], 3D micro- and nano-structuring [3]
At first we have confirmed that the direction of slow axis of form birefringence by using SiO2 glass, which is always perpendicular to the writing light polarization (E), can be controlled by rotating half-wave plate
To discuss the effect of temporal pulse shape on the phase retardance induced by the form birefringence, amplified pulses were shaped with an acousto-optic programmable dispersive filter (AOPDF: Dazzler, Fastlite)
Summary
Material processing with ultrafast lasers has recently attracted considerable interest [1] due to a wide range of applications including laser surgery [2], 3D micro- and nano-structuring [3]. Abstract: Ultrashort-pulsed laser direct writing can be useful for a 3D material processing. The localized form-birefringence originated from self-assembled nanostructure in isotropic material (i.e. SiO2 and GeO2 glass) was demonstrated.
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