L. Sudrie et al., Writing of permanent birefringent microlayers in bulk fused silica with femtosecond laser pulses, OPT COMMUN, 171(4-6), 1999, pp. 279-284
Permanent birefringent structures with controllable microscopic dimensions
are inscribed in pure fused silica platelets. The birefringence properties
of transmission gratings and of a quasi-uniform layer have been established
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