(Color online) BLIIRA measurement setup.
(Color online) Dynamics of induced absorption normalized to the absorption coefficient before blue light illumination. Rise of BLIIRA (a); relaxation of BLIIRA (b). The peak intensity of blue light is for all materials except for , where the peak intensity is .
(Color online) Comparison of BLIIRA relaxation for different blue light excitation intensities in MgO:PPSLT and MgO:PPSLN (a) and PPKTP (b).
(Color online) Dependence of the absorption coefficient at on the peak power of the blue light in single-domain (solid symbols and solid lines) and periodically poled (open symbols and dashed lines) crystals: KTP (stars), MgO:SLT (circles), MgO:SLN (down triangles), MgO:CLN (squares), and KN (up triangles).
BLIIRA normalized to the initial infrared absorption in periodically poled crystals: PPKTP (solid stars), MgO:PPSLT (solid squares), MgO:PPSLN (solid down triangles), MgO:PPCLN (open circles), and PPKN (open triangles). The solid line is a linear fit to the MgO:PPSLT data; the dashed line is the polynomial fit to the PPKN data.
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