Optical constants of graphene layers in the visible range

Bruna, M.; Borini, S.
January 2009
Applied Physics Letters;1/19/2009, Vol. 94 Issue 3, pN.PAG
Academic Journal
We show that the optical constants of graphene in the visible range can be estimated by means of a very simple procedure involving their consistence with universal optical conductivity and experimentally measured optical spectra, within the framework of Fresnel coefficients calculation. The obtained complex refractive index allows for accurate prediction of the optical behavior of graphene in the visible range, from the two-dimensional limit (single atomically thick graphene layer) to the bulk limit (graphite). Therefore, it may result very useful for quantitative optical analysis of graphene layers and graphitic structures in general.


Related Articles

  • Structural, electronic and optical properties of SrCl2 under hydrostatic stress. Benmimoun, Y.; Bouhemadou, A.; Khenata, R.; Reshak, A. H.; Amrani, B.; Ameri, M.; Baltache, H. // European Physical Journal B -- Condensed Matter;Jan2008, Vol. 61 Issue 2, p165 

    The results of first-principles theoretical study of the structural, electronic and optical properties of SrCl2 in its cubic structure, have been performed using the full-potential linear augmented plane-wave method plus local orbitals (FP-APW+lo) as implemented in the WIEN2k code. In this...

  • Optical constants of silicon in near infrared region. Mendeleyev, V. Ya.; Skovorodko, S. N.; Lubnin, E. N.; Prosvirikov, V. M. // Applied Physics Letters;9/29/2008, Vol. 93 Issue 13, p131916 

    Refractive index (n) and extinction coefficient (χ) spectra for n-type silicon with impurity concentrations Ni=2.3×1012 cm-3 and Ni=4.5×1018 cm-3 are determined from measured reflectance and transmittance of silicon samples in the 0.7–1.8 μm range. In the 0.81–0.92...

  • Fitting of transmission data for determining the optical constants and thicknesses of optical films. Ying, Xuantong; Feldman, Albert; Farabaugh, E. N. // Journal of Applied Physics;2/15/1990, Vol. 67 Issue 4, p2056 

    Discusses a study that used a multiparameter, nonlinear-curve fitting method to determine the refractive indices, absorption coefficients and thickness of mixed yttria-silica films from transmittance spectra. Use of homogeneous and inhomogeneous models of refractive index in the films for data...

  • Optical constants of ZnSxSe1-x ternary alloys. Ozaki, Shunji; Adachi, Sadao // Journal of Applied Physics;6/1/1994, Vol. 75 Issue 11, p7470 

    Presents methods for calculation of the various optical constants in ZnS[subx]Se[sub1-x] ternary alloys. Description of the theoretical model used; Refractive indices in the transparent region for a variety of waveguiding device applications; Effects of alloy composition.

  • Calculation model for the optical constants of amorphous semiconductors. Adachi, Sadao // Journal of Applied Physics;8/15/1991, Vol. 70 Issue 4, p2304 

    Deals with a study which presented a phenomenological expression for the calculation of the optical constants, the refractive index, the extinction coefficient, and the absorption coefficients, of amorphous semiconductors. Description of the model; Results of the study; Conclusions.

  • A method of precise determination of the optical constants of uniaxial crystals from the compensator parameters. Khasanov, T. // Optics & Spectroscopy;Jan2007, Vol. 102 Issue 1, p128 

    A method of determination of the refractive indices of uniaxial crystals from the compensator parameters is proposed. In this case, the accuracy is limited by the temperature fluctuations inside a crystal. The orientation of the optical axis with respect to the surface and the thickness and the...

  • CORRELATION OF MoO2 FILM MORPHOLOGY AND REFRACTIVE INDEX. Sinkevičiūtė, Dovilė; Dukštienė, Nijolė; Guobienė, Asta // International Conference: Radiation Interaction with Material & ;2012, p539 

    The amorphous MoO2 films of about 460 ± 20 nm thickness were electrodeposited on selenium pre-deposited SnO2∣glass plate. Films morphology changed from continuous to compact with needles embedded in the film matrix and then to hill-like blocks of a random orientation. The refractive...

  • Modified Luneburg Lens Based on Metamaterials. Chen, Haibing; Cheng, Qiang; Huang, Aihua; Dai, Junyan; Lu, Huiying; Zhao, Jie; Ma, Huifeng; Jiang, Weixiang; Cui, Tiejun // International Journal of Antennas & Propagation;5/18/2015, Vol. 2015, p1 

    We present the design, fabrication, and experimental characterization of a modified two-dimensional Luneburg lens based on bulk metamaterials. The lens is composed by a number of concentric layers. By varying the geometric dimensions of unit cells in each layer, the gradient refractive index...

  • Optical Transmission and Morphology of Ge-Te-In Glass System. George, Achamma; Sushama, D. // AIP Conference Proceedings;10/20/2011, Vol. 1391 Issue 1, p306 

    Optical studies are performed to calculate the refractive index (n), extinction coefficient (k) and dielectric constant (real and imaginary) of Ge20Te80 and Ge20Te74In6 chalcogenide glasses using transmission spectrum in the wave length range 350nm-1050nm. The surface morphology of the glasses...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics