UV Laser Photo-Reduction of Graphene Oxide and Graphene Fluoride for the Efficient Tuning of their Nonlinear Optical Response

Papadakis, Ioannis; Stathis, Aristeidis; Καραμπίτσος, Νικόλαος; Stavrou, Michalis; Kyrginas, Dimitrios; Couris, Stelios

doi:10.1109/icton51198.2020.9203278

Cited by 2 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following the standard procedures used for the analysis of the Z-scan recordings, , the values of the NLO parameters, that is, the nonlinear absorption coefficient β, the nonlinear refractive index parameter γ′, and the effective third-order susceptibility χ (3) , have been determined, and they are listed in Table along with the values of the NLO parameters of some recently investigated GOs exhibiting an O/C ratio of 0.25 . Again, to make easier the comparisons, all the values are referring to the same concentration of 1 mg mL –1 .…”

Section: Resultsmentioning

confidence: 99%

Giant Broadband (450–2300 nm) Optical Limiting and Enhancement of the Nonlinear Optical Response of Some Graphenes by Defect Engineering

et al. 2021

Self Cite

View full text Add to dashboard Cite

The nonlinear optical response (NLO) of some boron (B-GO), nitrogen (N-GO) doped, B,N individually doped (B,N-GO), and B and N domain doped (BN-GO) reduced graphene oxides (GO) is investigated under 4 ns, visible and infrared laser excitation. Besides their very large NLO response, it is shown that the B and/or N doping results in enhancement of the NLO response of undoped GO, the latter exhibiting weak response under visible excitation and negligible response under infrared excitation. In addition, the optical limiting (OL) action of B,N-GO and BN-GO was studied from 450 to 2300 nm and is compared to that of B-GO and N-GO, previously studied. Both B and N codoped graphenes exhibit very efficient broadband OL performance from visible to NIR, more efficient than that of B-GO and N-GO. Actually, the optical limiting onset of B,N-GO and BN-GO was found to attain record low values of 0.00096 and 0.00081 J cm–2 toward NIR wavelengths, lower than any known graphene-based derivative. The current work demonstrates unambiguously the effectiveness of defect engineering of graphene to tailor and enhance the NLO response and optical power limiting action for several photonic and (opto)electronic applications.

show abstract

Section: Resultsmentioning

confidence: 99%