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Linear Optical Properties (linear + optical_property)

Distribution by Scientific Domains
Physics and Astronomy75%

Selected Abstracts

Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants

LASER PHYSICS LETTERS, Issue 4 2008
A.A. Kaminskii
Abstract Micro-hardness and fracture toughness, as well as linear optical properties (full transmission spectrum and refractive index dispersion) of fine-grained Lu2O3 ceramics fabricated by VSN method are presented. (© 2008 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA) [source]

Simulation of electronic density of states and optical properties of PbB4O7 by first-principles DFT method

PHYSICA STATUS SOLIDI (B) BASIC SOLID STATE PHYSICS, Issue 2 2009
Hui Wang
Abstract First-principles calculations based on the density functional theory and the generalized gradient approximation were carried out to systematically investigate the electronic structure and linear optical properties of lead tetraborate (PbB4O7; PTB) single crystals. An indirect band gap of 4.34 eV is obtained. The valence band top is at the X-point and the conduction band is at the ,-point. The calculated total and partial densities of states indicate that the top valence band is constructed from O 2p states and the low conduction band mainly consists of Pb 6p states. The optical absorption spectra show several prominent structures but with very small directional anisotropy. PTB crystals have a higher refractive index but a small birefringence. The calculated frequency-dependent refractive index is in good agreement with experimental data. (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source]

Band structure and optical properties of SbSeI: density-functional calculation

PHYSICA STATUS SOLIDI (B) BASIC SOLID STATE PHYSICS, Issue 10 2007
Harun Akkus
Abstract The electronic structure and linear optical properties of the ferroelectric semiconductor SbSeI are calculated in the nonpolar phase using the density functional methods in the generalized gradient approximation. The obtained electronic band structure shows that SbSeI has an indirect forbidden gap of 1.65 eV. The linear photon-energy-dependent dielectric functions and some optical functions such as absorption and extinction coefficients, refractive index, energy-loss function, reflectivity and optical conductivity are calculated. Moreover, some important optical parameters such as the effective number of valence electrons and the effective optical dielectric constant are calculated. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source]

Synthesis and Electronic Structures and Linear Optics of Solid State Compound SrB2O4

CHINESE JOURNAL OF CHEMISTRY, Issue 7 2001
Hao Zhang
Abstract The cluster (SrB2O4)2 existing in crystalline states is employed to model the electronic structure and linear optical properties of solid state compound SrB2O4. This compound is synthesized by high temperature solution reaction, and it crystallizes in the orthorhombic space group Pbcn with cell dimensions a = 1.1995(3), b = 0.4337(1), c = 0.6575(1) nm, V = 0.34202 nm3, and Z = 4, , = 15.14 cm,1, Dcaled = 3.36 g/cm3. The dynamic refractive indices are obtained in terms of INDO/SCI following combination with the Sum-Over-States method. A width of the calculated gap is 4.424 eV between the valence band and conduction band, and the calculated average refractive index is 1.980 at a wavelength of 1.065 ,m. The charge transfers from O2- anion orbitals to Sr2+cation orbitals make the significant contributions to linear polarizability in terms of analyses of atomic state density contributing to the valence and conduction bands. [source]