搜索结果: 1-15 共查到“物理学 absorption”相关记录62条 . 查询时间(0.484 秒)
Sensitivity Analysis of Spectral Indices to Ozone Absorption Using Physical Simulations in a Forest Environment: Comparative Study between MODIS, SPOT VéGéTATION & AVHRR
Spectral Indices Ozone Absorption Using Physical Simulations
2015/7/29
Considering a forest cover (Balsam Fir with various densities) we analyze the sensitivity of several vegetation indices to
ozone absorption using physical simulations in the spectral bands of MODIS,...
VUV Fourier-transform absorption study of the Lyman and Werner bands in D2
VUV Fourier-transform absorption Lyman and Werner bands D2 Atomic Physics
2012/4/24
An extensive survey of the D2 absorption spectrum has been performed with the high-resolution VUV Fourier-transform spectrometer of the DESIRS beamline at the SOLEIL synchrotron. The frequency range o...
A Resolved-Super-Transition-Arrays method for calculation of the spectral absorption coefficient in hot plasmas
Resolved-Super-Transition-Arrays method calculation of the spectral absorption coefficient hot plasmas Atomic Physics
2012/4/24
A new method, 'Resolved-Super-Transition-Arrays', for calculation of the spectral absorption coefficient in hot plasmas is presented. The formulae of the traditional Super-Transition-Arrays method [A....
Nonlinear sigma model for optical media with linear absorption or gain
Nonlinear sigma model optical media linear absorption gain Optics
2012/4/24
In the framework of the Keldysh technique, we formulate the nonlinear sigma model for disordered optical media with linear absorption or gain. The effective action for fluctuations of the matrix field...
Controlled absorption and all-optical diode action due to collisions of self-induced transparency solitons
Controlled absorption all-optical diode action collisions of self-induced transparency solitons Optics
2012/4/20
We study inelastic collisions of counter-propagating self-induced transparency solitons in a homogeneously broadened two-level medium. The energy of the pulse can be almost totally absorbed in the med...
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...
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...
Time domain radiation and absorption by subwavelength sources
Time domain radiation absorption subwavelength sources elementary sources
2011/8/5
Abstract: Radiation by elementary sources is a basic problem in wave physics. Although computations of radiated fields in the time domain are textbook examples, the emitted energy flux is usually comp...
Absolute absorption on rubidium D1 line: including resonant dipole-dipole interactions
Absolute absorption rubidium D1 line resonant dipole-dipole interactions
2011/8/4
Abstract: Here we report on measurements of the absolute absorption spectra of dense rubidium vapour on the D1 line in the weak-probe regime for temperatures up to 170 C and number densities up to 3 \...
Coherent single-photon absorption by single emitters coupled to 1D nanophotonic waveguides
Coherent single-photon absorption single emitters 1D nanophotonic waveguides Optics
2011/8/1
Abstract: We study the dynamics of single-photon absorption by a single emitter coupled to a one-dimensional waveguide that simultaneously provides channels for spontaneous emission decay and a channe...
We demonstrate that 100% light absorption can take place in a single patterned sheet of doped graphene. General analysis shows that a planar array of small lossy particles exhibits full absorption und...
Enhancement of absorption bistability by trapping light planar metamaterial
bistability light planar metamaterial
2011/9/5
We study the peculiarities of the absorption bistability which appears in a planar metamaterial composed of a 4-fold periodic array of two concentric metal rings placed on a substrate of saturate abso...
Optically controllable photonic structures with zero absorption
Optically photonic structures zero absorption
2011/9/9
We show the possibility to periodically modulate refractive index in atomic medium in space or/and time while simultaneously keeping vanishing absorption/gain. Such modulation is based on periodic res...
Nuclear absorption effects on Lambda-bar/p-bar ratio in heavy ion collisions
Nuclear absorption effects Lambda-bar/p-bar ratio heavy ion collisions
2011/1/6
An enhanced ¯ /¯p ratio in heavy-ion relative to p + p collisions has been proposed as one of the signatures for the Quark-Gluon Plasma (QGP) formation. A significantly large (¯ +0 +...
Possible Origin of the Anomalous Far-infrared Absorption by Small Metal Particles
Origin of the Anomalous Far-infrared Absorption Small Metal Particles
2010/11/18
We have carried out far-infrared (far-IR) transmission measurements on the ligand stabilized
Au55 particles dispersed in CsI at volume fraction f = 0.002. We have found that while the
absorption coe...