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Discriminating thermal effect in nonlinear-ellipse-rotation-modified Z-scan measurements
- Source :
- Optics Letters. 36:2086
- Publication Year :
- 2011
- Publisher :
- The Optical Society, 2011.
-
Abstract
- We report that a modified Z-scan method by nonlinear ellipse rotation (NER) can be used to discriminate true nonlinear refraction from thermal effect in the transient regime and steady state. The combination of Z-scan and NER allows us to measure the third-order nonlinear susceptibility component without the influence of thermal-optical nonlinearity. The experimental results of pure CS(2) and CS(2) solutions of nigrosine verify that the transient thermal effect can be successfully eliminated from the NER-modified Z-scan measurements. This method is also extended to the case in which thermal-optical nonlinearities depend on a high repetition rate of femtosecond laser pulses for the N,N-dimethylmethanamide solutions of graphene oxide.
Details
- ISSN :
- 15394794 and 01469592
- Volume :
- 36
- Database :
- OpenAIRE
- Journal :
- Optics Letters
- Accession number :
- edsair.doi.dedup.....82feec335e3bdb68173018a27e8a4118
- Full Text :
- https://doi.org/10.1364/ol.36.002086