Optical transmittance of standard and reduced graphene oxide films under erbium laser treatment with varying energy densities

The optical transmittance of thin films of standard and reduced graphene oxide was investigated. The IR spectra of two samples in the range of 1000…2400 nm were measured. The films were irradiated with an erbium laser at a wavelength of 1.54 μm with an impulse duration of 90 ns at energy densities from 30 to 350 mJ/cm². The levels of energy passing through the samples and the threshold energies causing material destruction were determined. The obtained results can be used to evaluate the possibility of using graphene-based thin films as an optical limiter in electronic devices to ensure the safety of radiation perception by the human eye and radiation-sensitive components of optoelectronic circuits.

Authors: M. E. Ilin, N. V. Kamanina

Direction: Physics

Keywords: graphene oxide, IR spectrum, optical limiting, erbium laser, surface properties

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