Fig. 1: Concept of SAAL.

a Schematic diagram of SAAL in transparent dielectric crystals. b Basic implementation process of SAAL using isotropic and anisotropic energy sources. Red dotted curves indicate the laser spot profile in the XY plane

a Schematic diagram of SAAL in transparent dielectric crystals. b Basic implementation process of SAAL using isotropic and anisotropic energy sources. Red dotted curves indicate the laser spot profile in the XY plane