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Title: Nonlinear transmission of CO{sub 2} laser radiation by graphene

Abstract

The nonlinear transmission of multilayer ({approx}12 layers) graphene at the wavelength {lambda} {approx} 10 {mu}m is measured for the first time. The absorption saturation intensity in graphene ({approx}330 kW cm{sup -2}) and the ablation threshold of its outer layers ({approx}1 MW cm{sup -2}, 0.11 J cm{sup -2}) under action of a CO{sub 2} laser pulse with a duration of 70 - 85 ns at {lambda} = 10.55 {mu}m are determined. The residual absorption of graphene at its partial saturation was 48 % of the initial value. This is significantly smaller than the value measured previously for samples with a close number of layers at {lambda} = 1.55 {mu}m (92.3 % - 93.8 %). It is shown that the ablation threshold of two graphene layers adjacent to the BaF{sub 2} substrate (after successive ablation of outer layers) exceeds 0.27 J cm{sup -2}. (nonlinear optical phenomena)

Authors:
; ; ;  [1]
  1. A M Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
22066634
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 42; Journal Issue: 10; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABLATION; ABSORPTION; BARIUM FLUORIDES; CARBON; CARBON DIOXIDE LASERS; LAYERS; NONLINEAR OPTICS; PULSES; WAVELENGTHS

Citation Formats

Sorochenko, V R, Obraztsova, Elena D, Rusakov, P S, and Rybin, M G. Nonlinear transmission of CO{sub 2} laser radiation by graphene. United States: N. p., 2012. Web. doi:10.1070/QE2012V042N10ABEH014924.
Sorochenko, V R, Obraztsova, Elena D, Rusakov, P S, & Rybin, M G. Nonlinear transmission of CO{sub 2} laser radiation by graphene. United States. doi:10.1070/QE2012V042N10ABEH014924.
Sorochenko, V R, Obraztsova, Elena D, Rusakov, P S, and Rybin, M G. Wed . "Nonlinear transmission of CO{sub 2} laser radiation by graphene". United States. doi:10.1070/QE2012V042N10ABEH014924.
@article{osti_22066634,
title = {Nonlinear transmission of CO{sub 2} laser radiation by graphene},
author = {Sorochenko, V R and Obraztsova, Elena D and Rusakov, P S and Rybin, M G},
abstractNote = {The nonlinear transmission of multilayer ({approx}12 layers) graphene at the wavelength {lambda} {approx} 10 {mu}m is measured for the first time. The absorption saturation intensity in graphene ({approx}330 kW cm{sup -2}) and the ablation threshold of its outer layers ({approx}1 MW cm{sup -2}, 0.11 J cm{sup -2}) under action of a CO{sub 2} laser pulse with a duration of 70 - 85 ns at {lambda} = 10.55 {mu}m are determined. The residual absorption of graphene at its partial saturation was 48 % of the initial value. This is significantly smaller than the value measured previously for samples with a close number of layers at {lambda} = 1.55 {mu}m (92.3 % - 93.8 %). It is shown that the ablation threshold of two graphene layers adjacent to the BaF{sub 2} substrate (after successive ablation of outer layers) exceeds 0.27 J cm{sup -2}. (nonlinear optical phenomena)},
doi = {10.1070/QE2012V042N10ABEH014924},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 10,
volume = 42,
place = {United States},
year = {2012},
month = {10}
}