Eclipsing Z-scan measurement of lambda/10(4) wave-front distortion.
We introduce a simple modification to the Z-scan technique that results in a sensitivity enhancement that permits measurement of nonlinearly induced wave-front distortion of =lambda/10(4). This sensitivity was achieved with 10-Hz repetition-rate pulsed laser sources. Sensitivity to nonlinear absorption is also enhanced by a factor of =3. This method permits characterization of nonlinear thin films without the need for waveguiding.
Xia
T
T
Hagan
D J
DJ
Sheik-Bahae
M
M
Van Stryland
E W
EW