搜索结果: 1-15 共查到“知识库 物理学 crystals”相关记录59条 . 查询时间(0.078 秒)
Two-component solitons under a spatially modulated linear coupling: Inverted photonic crystals and fused couplers
Two-component solitons spatially modulated linear Inverted photonic crystals fused couplers Optics
2012/5/29
We study two-component solitons and their symmetry-breaking bifurcations (SBBs) in linearly coupled photonic systems with a spatially inhomogeneous strength of the coupling. One system models an inver...
Transmission Character of General Function Photonic Crystals
General Photonic crystals Dispersion relation Transmissivity
2012/5/29
In the paper, we present a new general function photonic crystals (GFPCs), which refractive index of medium is a arbitrary function of space position. Unlike conventional photonic crystals (PCs), whic...
Terahertz generation by optical rectification in uniaxial birefringent crystals
Terahertz generation optical rectification uniaxial birefringent crystals Optics
2012/5/28
The angular dependence of terahertz (THz) emission from birefringent crystals can differ significantly from that of cubic crystals. Here we consider optical rectification in uniaxial birefringent mate...
The helical phase of chiral nematic liquid crystals as the Bianchi VII(0) group manifold
The helical phase chiral nematic liquid crystals the Bianchi VII(0) group manifold
2011/9/13
We show that the optical structure of the helical phase of a chiral nematic is naturally associated with the Bianchi V II0 group manifold, of which we give a full account. The Joets-Ribotta metric gov...
We have developed a novel scheme to measure the secular motion of trapped ions. Employing pulsed excitation and analysis of the uorescence of laser cooled ions, the COM-mode frequency of single as we...
Effective speed of sound in phononic crystals.
Spin-to-orbital momentum conversion via electrooptic Pockels effect in crystals
Spin-to-orbital momentum conversion electrooptic Pockels effect crystals
2011/8/3
Abstract: In the present work we have demonstrated a possibility for real-time operation by orbital an-gular momentum (OAM) of optical beams via Pockels effect in solid crystalline materials. Basing o...
On the effective shear speed in 2D phononic crystals
2D phononic crystals antiplane shear-wave speed Mathematical Physics
2011/7/26
On the effective shear speed in 2D phononic crystals.
Paraxial theory of sum-frequency generation by side-walk alignment and phase-matching in uniaxial crystals
non-linear optics, birefringence, sum-frequency generation
2011/9/5
A formalism in terms of Hertz potentials is presented describing sum-frequency generation in a uniaxial non-linear crystal. A scheme is proposed consisting in aligning the side-walk propagation of ext...
The helical phase of chiral nematic liquid crystals as the Bianchi VII(0) group manifold
chiral nematic liquid crystals the Bianchi VII(0) group manifold Soft Condensed Matter
2011/7/27
Abstract: We show that the optical structure of the helical phase of a chiral nematic is naturally associated with the Bianchi VII(0) group manifold. The Joets-Ribotta metric governing propagation of ...
Anisotropic elasticity in confocal studies of colloidal crystals
vibrational states colloidal crystals
2011/9/9
We consider the theory of uctuations of a colloidal solid observed in a confocal slice. For a cubic crystal we study the evolution of the projected elastic properties as a function of the anisotropy ...
Neutron-gamma discrimination of CsI(Na) crystals for dark matter searches
Neutron-gamma discrimination CsI(Na) crystals dark matter
2011/4/7
Neutron-gamma discrimination of CsI(Na) crystals for dark matter searches 。
Interplay of antiferromagnetism, ferromagnetism and superconductivity in EuFe_2(As_1-xP_x)_2 single crystals
Interplay of antiferromagnetism ferromagnetism superconductivity
2010/11/24
We report a systematic study on the influence of antiferromagnetic and ferromagnetic phases of
Eu2+ moments on the superconducting phase upon doping the As site by isovalent P, which acts as
chemica...
Simulation studies and spectroscopic measurements of a position sensitive detector based on pixelated CdTe crystals
Simulation studies spectroscopic measurements position sensitive detector pixelated CdTe crystals
2010/12/29
Simulation studies and spectroscopic measurements are presented regarding the development of a pixel multilayer CdTe detector under development in the context of the COCAE project. The instrument will...
Evaluation of Compton scattering sequence reconstruction algorithms for a portable position sensitive radioactivity detector based on pixelated Cd(Zn)Te crystals
Evaluation of Compton scattering sequence reconstruction algorithms a portable position sensitive radioactivity detector based on pixelated Cd(Zn)Te crystals
2011/1/4
We present extensive simulation studies on the performance of algorithms for the Compton sequence reconstruction used for the development of a portable spectroscopic instrument (COCAE), with the capab...