Giant third-order nonlinearity from low-loss electrochemical graphene oxide film with a high power stability

Jun Ren, Xiaorui Zheng, Zhiming Tian, Dan Li, Pan Wang, Baohua Jia

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Giant third-order nonlinear absorption and refraction of electrochemical graphene oxide (EGO) film were investigated in the femtosecond regime using the single beam Z-scan technique. The excellent chemical stability of the EGO film under high-power illumination up to 400 mJ/cm2 is demonstrated, which can be attributed to the low oxidation degree revealed by the optical and Raman spectroscopies. High and broadband linear transmission over 70% has been observed from the visible to the infrared range. The low-loss EGO film with giant third-order nonlinearity, excellent chemical stability, large-scale preparation and flexible integration has a great potential for high-power nonlinear optical applications.

Original languageEnglish
Article number221105
Number of pages5
JournalApplied Physics Letters
Issue number22
Publication statusPublished - 28 Nov 2016

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