DEPENDENT ABSORPTION AND SCATTERING BY INTERACTING NANOPARTICLES

2010-06-19
Donmezer, Fatma Nazli
Menguc, M. Pinar
Okutucu Özyurt, Hanife Tuba
Dependent light scattering and absorption patterns of metallic nano-sized particles in interaction with other spherical and cone-like structures were investigated. The numerical solution of the light scattering problem was obtained using DDSCAT7.0 code. The surface integration of the Poynting vector is performed to estimate the spectral absorption by individual particles. Parametric studies were conducted to examine the effects of different parameters, including the geometry, size, shape and the position of the particles, the wavelength, polarization and the direction of the incident light. It was observed that the proximity of particles contribute most to the intricate scattering and absorption patterns. The formulation provided on dependent light absorption and scattering may be used for diagnosis purposes and to improve the AFM based nano-manufacturing.

Suggestions

DEPENDENT ABSORPTION AND SCATTERING BY INTERACTING NANOPARTICLES
Donmezer, Fatma Nazli; MENGÜÇ, MUSTAFA PINAR; Okutucu Özyurt, Hanife Tuba (2010-01-01)
Dependent light scattering and absorption patterns of metallic nano-sized particles in interaction with other spherical and cone-like structures were investigated. The numerical solution of the light scattering problem was obtained using DDSCAT7.0 code. The surface integration of the Poynting vector is performed to estimate the spectral absorption by individual particles. Parametric studies were conducted to examine the effects of different parameters, including the geometry, size, shape and the position of...
Nonlinear optical properties of low temperature annealed silicon-rich oxide and silicon-rich nitride materials for silicon photonics
Minissale, S.; Yerci, Selçuk; Dal Negro, L. (2012-01-09)
We investigate the nonlinear optical properties of Si-rich silicon oxide (SRO) and Si-rich silicon nitride (SRN) samples as a function of silicon content, annealing temperature, and excitation wavelength. Using the Z-scan technique, we measure the non-linear refractive index n(2) and the nonlinear absorption coefficient beta for a large number of samples fabricated by reactive co-sputtering. Moreover, we characterize the nonlinear optical parameters of SRN in the broad spectral region 1100-1500 nm and show ...
Effective mass and peculiarity of optical properties of Cadmium Sulfide nanoparticles
Muradov, M. B.; Eyvazova, G. M.; Turan, Raşit; Maharramov, A. M. (2008-12-01)
X-ray diffraction data, electron microscope and optical properties of cadmium sulfide nanoparticles were analyzed. It is shown that the value of the reduced effective mass of charge carriers in nanoparticles differs from bulk crystals. Changes of effective mass and "red shift" in values of band gap are explained by the occurrence of additional electronic potential in nanoparticles.
Dispersive optical constants of Tl2InGaSe4 single crystals
Qasrawi, A. F.; Hasanlı, Nızamı (IOP Publishing, 2007-09-01)
The structural and optical properties of Bridgman method grown Tl2InGaSe4 crystals have been investigated by means of room temperature x-ray diffraction, and transmittance and reflectance spectral analysis, respectively. The x-ray diffraction technique has shown that Tl2InGaSe4 is a single phase crystal of a monoclinic unit cell that exhibits the lattice parameters of a = 0.77244 nm, b = 0.64945 nm, c = 0.92205 nm and beta = 95.03 degrees . The optical data have revealed an indirect allowed transition band ...
Thermal Characterization of Sepiolite Samples
Kök, Mustafa Verşan (2013-01-15)
In this research, two sepiolite samples of different origins were studied by X-ray diffraction, Fourier transform infrared spectroscopy, differential scanning calorimeter, and thermogravimetry. It was observed that both sepiolite samples are nearly pure and well crystallized sepiolite. Thermal studies (thermogravimetry) showed that four distinct weight loss regions are observed in both sepiolite samples studied. It was noticed that these structural changes play an important role to the properties and uses o...
Citation Formats
F. N. Donmezer, M. P. Menguc, and H. T. Okutucu Özyurt, “DEPENDENT ABSORPTION AND SCATTERING BY INTERACTING NANOPARTICLES,” 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54245.