en Z -scan Measurement Of Nonlinear Refractive Index Of Graphene Based On Q-switched Nd:YAG Laser Ablation Of Graphite Target In Liquid Nitrogen تخصصی Special پژوهشي Research Under strong laser illumination, few-layer graphene exhibits a nonlinear phase shift. Here, we distinguish this nonlinear optical effect which used to be named nonlinear refractive index. We show that fabricated graphene based on Q-switched Nd:YAG laser ablation possesses a giant nonlinear refractive index in comparison with graphene powders fabricated by chemical method. Under strong laser illumination, few-layer graphene exhibits a nonlinear phase shift. Here, we distinguish this nonlinear optical effect which used to be named nonlinear refractive index. We show that fabricated graphene based on Q-switched Nd:YAG laser ablation possesses a giant nonlinear refractive index in comparison with graphene powders fabricated by chemical method. graphene, laser ablation, nonlinear refractive index graphene, laser ablation, nonlinear refractive index 921 924 http://opsi.ir/browse.php?a_code=A-10-1-353&slc_lang=en&sid=1 sara hesami afshar sara hesami afshar sarah.h.afshar@aut.ac.ir 10031947532846001573 10031947532846001573 Yes Energy Engineering department, Amirkabir University of Technology Energy Engineering department, Amirkabir University of Technology parviz parvin parviz parvin parvin@aut.ac.ir 10031947532846001574 10031947532846001574 No Energy Engineering department, Amirkabir University of Technology Energy Engineering department, Amirkabir University of Technology hamidreza habibiyan hamidreza habibiyan habibiyan@aut.ac.ir 10031947532846001575 10031947532846001575 No Energy Engineering department, Amirkabir University of Technology Energy Engineering department, Amirkabir University of Technology ali bavali ali bavali alibavali@aut.ac.ir 10031947532846001576 10031947532846001576 No Energy Engineering department, Amirkabir University of Technology Energy Engineering department, Amirkabir University of Technology tayebe mohammadi tayebe mohammadi tmohammadi@aut.ac.ir 10031947532846001577 10031947532846001577 No Energy Engineering department, Amirkabir University of Technology Energy Engineering department, Amirkabir University of Technology ali dideban ali dideban alidideban@aut.ac.ir 10031947532846001578 10031947532846001578 No Energy Engineering department, Amirkabir University of Technology Energy Engineering department, Amirkabir University of Technology maryam dezfuli maryam dezfuli maryam.dezfuli@aut.ac.ir 10031947532846001579 10031947532846001579 No Energy Engineering department, Amirkabir University of Technology Energy Engineering department, Amirkabir University of Technology kamran shayan kamran shayan kamransh@aut.ac.ir 10031947532846001580 10031947532846001580 No Energy Engineering department, Amirkabir University of Technology Energy Engineering department, Amirkabir University of Technology