搜索结果: 1-15 共查到“光学 Theory”相关记录22条 . 查询时间(0.273 秒)
Simulation of the microwave emission of multi-layered snowpacks using the Dense Media Radiative transfer theory: the DMRT-ML model
microwave emission multi-layered snowpacks
2014/12/12
DMRT-ML is a physically based numerical model
designed to compute the thermal microwave emission of
a given snowpack
Partial Differential Phase Shift Keying - Theory and Motivation
Partial Differential Phase Shift Keying Theory and Motivation Optics
2012/5/29
Recently, many evidences demonstrate that partial Differential Phase Shift Keying (i.e., when the delay inside the Delay Interferometer is shorter than the symbol period) can partially compensate the ...
Reconciliation of generalized refraction with diffraction theory
Reconciliation of generalized refraction diffraction theory Optics
2012/4/20
When an electromagnetic wave is obliquely incident on the interface between two homogeneous media with different refractive indices, the requirement of phase continuity across the interface generally ...
Dipole-Quadrupole Theory of Surface Enhanced Infrared Absorption and Appearance of Forbidden Lines in the SEIRA Spectra of Symmetrical Molecules
Dipole-Quadrupole Theory Surface Enhanced Infrared Absorption and Appearance Forbidden Lines the SEIRA Spectra Symmetrical Molecules Optics
2012/4/20
The paper presents main aspects of the Dipole-Quadrupole theory of Surface Enhanced Infrared Absorption (SEIRA). It is pointed out the possibility of appearance of the lines, caused by totally symmetr...
IR color separation in transmission through gratings on (110) silicon: FTIR experiment versus theory
IR color separation transmission through gratings (110) silicon FTIR experiment versus theory Optics
2012/4/19
The phenomenon of filtering in zero-diffraction order is studied for transmission through 1D-periodic structures on a silicon wafer. Our study combines FTIR spectrometry in the range from 2.5 to 25 mi...
Theory for absorption of ultrashort laser pulses by spheroidal metallic nanoparticles
absorption ultrashort laser pulses spheroidal metallic
2011/8/18
Abstract: The theory for the electric and magnetic fields energy absorption by small metallic particles subjected to the irradiation by ultrashort laser pulses of different duration in the region of s...
Theory of quantum frequency translation of light in optical fiber: application to interference of two photons of different color
quantum frequency translation light optical fiber photons Quantum Physics
2011/8/17
Abstract: We study quantum frequency translation and two-color photon interference enabled by the Bragg scattering four-wave mixing process in optical fiber. Using realistic model parameters, we compu...
Perturbation Theory for PT-Symmetric Sinusoidal Optical Lattices at the Symmetry-Breaking Threshold
PT-Symmetric Sinusoidal Optical the Symmetry-Breaking Threshold
2011/8/31
The PT symmetric potential V0[cos(2x/a)+i sin(2x/a)] has a completely real spectrum for ≤ 1, and begins to develop complex eigenvalues for > 1. At the
symmetry-breaking threshold = 1 some of...
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...
Semianalytic theory of self-similar optical propagation and mode locking using a shape-adaptive model pulse
Semianalytic shape-adaptive model pulse
2011/9/1
A semi-analytic theory for the pulse dynamics in similariton amplifiers and lasers is presented,based on a model pulse with adaptive shape. By changing a single parameter, this test function can be co...
Classical GR as a topological theory with linear constraints
Classical GR topological theory linear constraints
2010/12/20
We investigate a formulation of continuum 4d gravity in terms of a constrained topological (BF) theory, in the spirit of the Plebanski formulation, but involving only linear constraints,
Despite weak spin-orbit coupling and an indirect band gap, significant optical spin orientation
is possible in silicon. We show this by performing full band-structure calculations of the phonon-assis...
Regular hyperbolicity, dominant energy condition and causality for Lagrangian theory of maps
Regular hyperbolicity dominant energy condition causality for Lagrangian theory of maps
2010/12/21
The goal of the present paper is three-fold. First is to clarify the connection between the dominant energy condition and hyperbolicity properties of Lagrangian field theories.
Theory of the asymmetric ripple phase in achiral lipid membranes
Theory asymmetric ripple phase achiral lipid membranes
2010/11/23
We present a phenomenological theory of phase transitions in achiral lipid membranes in terms of two coupled order parameters – a scalar order parameter describing lipid chain melting, and a vector or...
Optically Levitating Dielectrics in the Quantum Regime: Theory and Protocols
Optically Levitating Dielectrics Quantum Regime Theory Protocols
2010/11/5
We provide a general quantum theory to describe the coupling of light with the motion of a dielectric object inside a high finesse optical cavity. In particular, we derive the total Hamiltonian of the...