Authors: R Sowade I Breunig C Tulea K Buse
Publish Date: 2010/02/06
Volume: 99, Issue: 1-2, Pages: 63-66
Abstract
The effective nonlinear coefficient d eff of lithium niobate is determined to be 94 pm/V for a process that converts infrared light to 135 THz radiation This value is inferred from the performance of a continuouswave singlyresonant optical parametric oscillator in which the cavityenhanced signal wave of a primary parametric process acts as a pump wave for a cascaded process generating terahertz waves To quantify the nonlinear coefficient the coupled wave equations including absorption are evaluated Furthermore from our measurements we also determine the temperature dependence of the refractive index to be dn THz/dT=00013/K around 14 THz
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