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Search for "absorption cross section" in Full Text gives 29 result(s) in Beilstein Journal of Nanotechnology.

Dye-doped spheres with plasmonic semi-shells: Lasing modes and scattering at realistic gain levels

  • Nikita Arnold,
  • Boyang Ding,
  • Calin Hrelescu and
  • Thomas A. Klar

Beilstein J. Nanotechnol. 2013, 4, 974–987, doi:10.3762/bjnano.4.110

Graphical Abstract
  • cross section becomes slightly negative in the vicinity of the absorption peak (discussed in more detail below). When approaching laser threshold, the full width at half maximum (FWHM) of the scattering and absorption peaks goes to zero [51], which is an artifact of the purely classical calculation
  • concentrations less than 3.7 times larger than available in commercial PS spheres. Hence, we conclude that lasing should be possible in custom made PS spheres with a moderately enhanced dye concentration. No lasing is observed yet at the commercially available gain strength of ΔεDye = 0.004, but the absorption
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Published 30 Dec 2013

Femtosecond time-resolved photodissociation dynamics of methyl halide molecules on ultrathin gold films

  • Mihai E. Vaida,
  • Robert Tchitnga and
  • Thorsten M. Bernhardt

Beilstein J. Nanotechnol. 2011, 2, 618–627, doi:10.3762/bjnano.2.65

Graphical Abstract
  • dependence renders this option again unlikely because rather three photons of 333 nm would be expected to be required to excite CH3Br− to CH3Br+. The A-band of the free methyl bromide molecule has its maximum absorption cross section at around 6.2 eV [3]. The observation that CH3Br adsorbed on Au can be
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Published 20 Sep 2011

Extended X-ray absorption fine structure of bimetallic nanoparticles

  • Carolin Antoniak

Beilstein J. Nanotechnol. 2011, 2, 237–251, doi:10.3762/bjnano.2.28

Graphical Abstract
  • (energy dependent) intensity of incident X-rays and μ is the absorption coefficient. Since for photon energies below 20 keV the photoeffect dominates over Raleigh and Compton scattering, μ can be approximated by the photoabsorption coefficient, which is proportional to the absorption cross-section. The
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Published 11 May 2011

Flash laser annealing for controlling size and shape of magnetic alloy nanoparticles

  • Damien Alloyeau,
  • Christian Ricolleau,
  • Cyril Langlois,
  • Yann Le Bouar and
  • Annick Loiseau

Beilstein J. Nanotechnol. 2010, 1, 55–59, doi:10.3762/bjnano.1.7

Graphical Abstract
  • substrate since both materials absorb at the laser wavelength. For the NPs, this absorption results in the increase of their temperature and induces desorption of Co and Pt atoms. The absorption cross section of the UV radiation varies as d3, where d is the diameter of the NPs [13][27]. Desorption phenomena
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Published 22 Nov 2010
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