Size effects in the optical properties ofAunAgnembedded clusters

2000 ◽  
Vol 62 (8) ◽  
pp. 5179-5185 ◽  
Author(s):  
E. Cottancin ◽  
J. Lermé ◽  
M. Gaudry ◽  
M. Pellarin ◽  
J.-L. Vialle ◽  
...  
Keyword(s):  
Optical Properties ◽  
Size Effects

QUANTUM-SIZE EFFECTS ON THE OPTICAL PROPERTIES OF SMALL PARTICLES

1983 ◽  
Vol 44 (C10) ◽  
pp. C10-375-C10-378 ◽  
Author(s):  
P. Ahlqvist ◽  
P. de Andrés ◽  
R. Monreal ◽  
F. Flores
Keyword(s):  
Optical Properties ◽  
Size Effects ◽  
Quantum Size Effects ◽  
Small Particles ◽  
Quantum Size

scholarly journals Ligand shell size effects on one- and two-photon excitation fluorescence of zwitterion functionalized gold nanoclusters

2019 ◽  
Vol 21 (43) ◽  
pp. 23916-23921 ◽  
Author(s):  
Martina Perić ◽  
Željka Sanader Maršić ◽  
Isabelle Russier-Antoine ◽  
Hussein Fakhouri ◽  
Franck Bertorelle ◽  
...  
Keyword(s):  
Optical Properties ◽  
Size Effects ◽  
Gold Nanoclusters ◽  
Shell Size ◽  
Two Photon ◽  
Photon Excitation ◽  
Ligand Shell ◽  
Aqueous Solvent ◽  
The One ◽  
Two Photon Excitation

The effects of explicit ligands and of aqueous solvent on optical properties and in particular on the one- and two-photon excitation fluorescence of zwitterion functionalized gold nanoclusters have been studied.

Interband Optical Properties of the Microcrystalline Component within the Damage Layer of Be+ - Implanted GaAs

1988 ◽  
Vol 128 ◽  
Author(s):  
G. F. Feng ◽  
R. Zallen
Keyword(s):  
Optical Properties ◽  
Size Effects ◽  
Finite Size ◽  
Bulk Crystal ◽  
Interband Absorption ◽  
Finite Size Effects ◽  
Damage Layer ◽  
Lorentz Oscillator ◽  
Fine Grain ◽  
Short Time

ABSTRACTThe damage layer in unannealed Be+-implanted GaAs samples (45-keV Be+ ions, 1013 to 5 × 1014 ions/cm2) consists of a fine-grain mixture of amorphous GaAs and GaAs microcrystals, with the characteristic microcrystal size L of the microcrystalline component decreasing with increasing fluence. We have carried out reflectivity measurements on these samples for photon energies from 2.0 to 5.6 eV, in the electronic interband regime. Using Lorentz oscillator analysis and the effective medium approximation, we have extracted the dielectric function of the microcrystalline component (μ-GaAs) within the damage layer. The optical properties of μ-GaAs deviate appreciably from those of the bulk crystal near the interband absorption peaks. The linevidths of these peaks are found to increase over the bulk-crystal value by an amount proportional to (l/L), the increase being about 0.2 eV when L =100 Å. These finite-size effects can be understood in terms of a lifetime reduction caused by the short time it takes for electrons to reach the microcrystal boundaries.

Composition and Size Effects on the Optical Properties of Isolated Silicon-Germanium Nanowires

2012 ◽  
Vol 1408 ◽  
Author(s):  
Houssem Kallel ◽  
Abdallah Chehaidar ◽  
Arnaud Arbouet ◽  
Thierry Baron ◽  
Alexis Potié ◽  
...  
Keyword(s):  
Optical Properties ◽  
Silicon Germanium ◽  
Size Effects ◽  
Numerical Study ◽  
Mie Theory ◽  
Light Polarization ◽  
Angle Of Incidence ◽  
Nanowire Diameter ◽  
Germanium Nanowires ◽  
Silicon And Germanium

ABSTRACTSilicon and Germanium nanowires (NWs) have shown a strong ability to enhance both the absorption and scattering of light. Tailoring the optical properties of Si or Ge NWs can be obtained by adjusting the nanowire diameter. Another parameter that can be used is the chemical composition of silicon-germanium (Si1-xGex-NWs) alloys. In this work, we perform a numerical study on the optical properties of single Si1-xGex-NWs based on the Lorenz-Mie theory. The effects of Ge composition, light polarization and angle of incidence on the nanowire optical properties are investigated.

Finite Size Effects in Magnetic and Optical Properties of Antiferromagnetic NiO Nanoparticles

2014 ◽  
Vol 50 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Bhagaban Kisan ◽  
P. C. Shyni ◽  
Samar Layek ◽  
H. C. Verma ◽  
David Hesp ◽  
...  
Keyword(s):  
Optical Properties ◽  
Size Effects ◽  
Finite Size ◽  
Nio Nanoparticles ◽  
Finite Size Effects

Evaluation of shape and size effects on optical properties of ZnO pigment

2013 ◽  
Vol 270 ◽  
pp. 33-38 ◽  
Author(s):  
Narges Kiomarsipour ◽  
Reza Shoja Razavi ◽  
Kamal Ghani ◽  
Marjan Kioumarsipour
Keyword(s):  
Optical Properties ◽  
Size Effects ◽  
Shape And Size
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