Measurement of the Third-Order Nonlinear Optical Coefficientof ZnO Crystals by Using ICCD-Z-Scan

Abstract

We present an image-intensified charge-coupled-device (ICCD) version ofZ-scan by employing an ICCD detector and fixing thesample at the beam waist, and a measurement of the third-ordernonlinear optical coefficient of single crystal zinc oxide (ZnO). Theχ(3) value of −9.1×10−15 cm2/W measured is inagreement with the published result. Our Z-scan configuration of placingsample at beam waist and collecting the whole wavefront by an ICCDdetector is simple and can be deployed in cryogenic research where thesample cannot be Z-scanned.