The scattering of light and other electromagnetic radiation djvu

Authors: Advanced Search Include Citations. The scattering of light and other Electromagnetic Radiation by M Kerker. Add To MetaCart. Surface bidirectional reflection distribution function and the texture of bricks and tiles by Marigo Stavridi , Bram Van Ginneken, et al. Citation Context Some interesting properties of metals confined in time and nanometer space of different shapes by Mostafa A.

El-sayed - Acc. Res , The properties of a material depend on the type of motion its electrons can execute, which depends on the space available for them i. Thus, the properties of each material are characterized by a specific length scale, usually on the nanometer dimensio Abstract - Cited by 47 1 self - Add to MetaCart The properties of a material depend on the type of motion its electrons can execute, which depends on the space available for them i.

Thus, the properties of each material are characterized by a specific length scale, usually on the nanometer dimension.

If the physical size of the material is reduced below this length scale, its properties change and become sensitive to its size and shape. In this Account we describe some of the observed new chemical, optical, and thermal properties of metallic nanocrystals when their size is confined to the nanometer length scale and their dynamical processes are observed on the femto- to picosecond time scale. El-sayed - J. B , The plasmon bandwidth is found to follow the predicted behavior as it increases with decreasing size in the intrinsic size region mean diameter smaller than 25 nm , and also increases with increasing size in the extrinsic size region mean diameter larger than Abstract - Cited by 34 0 self - Add to MetaCart nanoparticles in aqueous solution.

The plasmon bandwidth is found to follow the predicted behavior as it increases with decreasing size in the intrinsic size region mean diameter smaller than 25 nm , and also increases with increasing size in the extrinsic size region mean diameter larger than 25 nm.

Because of this pronounced size effect a homogeneous size distribution and therefore a homogeneous broadening of the plasmon band is concluded for all the prepared gold nanoparticle samples.

By applying a simple two-level model the dephasing time of the coherent plasmon oscillation is calculated and found to be less than 5 fs. Furthermore, the temperature dependence of the plasmon absorption is examined. A small temperature effect is observed. This is consistent with the fact that the dominant electronic dephasing mechanism involves electron-electron interactions rather than electron-phonon coupling.

Simulation of the optical absorption spectra of gold nanorods as a function of their aspect ratio and the effect of the medium dielectric constant by S.

Link, M. Mohamed, M. B Would you also like to submit a review for this item? You already recently rated this item. Your rating has been recorded. Write a review Rate this item: 1 2 3 4 5. Preview this item Preview this item.

Series: Physical chemistry , volume The book reviews electromagnetic waves, optics, the interrelationships of main physical quantities and the physical concepts of optics, including Maxwell's equations, polarization, geometrical optics, interference, and diffraction.

The text explains the Rayleigh2 theory of scattering by small dielectric spheres, the Bessel functions, and the Legendre functions. The author also explains how the scattering functions for a homogenous sphere chan. Read more Show all links. Allow this favorite library to be seen by others Keep this favorite library private. Save Cancel. Find a copy in the library Finding libraries that hold this item Scattering of light, and other electromagnetic radiation.

The Scattering of Light and Other Electromagnetic Radiation discusses the theory of electromagnetic scattering and describes some practical applications. Reviews User-contributed reviews Add a review and share your thoughts with other readers. Be the first. Add a review and share your thoughts with other readers. Tags Add tags for "The scattering of light : and other electromagnetic radiation". Similar Items Related Subjects: 9 Electromagnetic theory.

Light -- Scattering. Scattering Physics Electromagnetic waves -- Scattering. Magneto optische verschijnselen. Elektromagnetische straling. All rights reserved. Please sign in to WorldCat Don't have an account? Remember me on this computer. When a sound wave propagates through a medium, it produces alternate regions of high compression high density and low compression or rarefaction. A picture of the density distribution in such a medium is shown in Fig.

Brillouin scattering of light to higher or lower frequencies occurs because the medium is moving toward or away from the light source. This is an optical Doppler effect, in which the frequency of sound from a moving object is shifted up in frequency as the object moves toward the observer. See also: Doppler effect. The second kind of inelastic scattering studied in fluids is due to entropy and temperature fluctuations.

In contrast to the pressure fluctuations due to sound waves, these entropy fluctuations do not generate scattering at sharp, well-defined wavelength shifts from the exciting wavelength; rather, they produce a broadening in the scattered radiation centered about the exciting wavelength. This is because entropy fluctuations in a normal fluid are not propagating and do not, therefore, have a characteristic frequency; unlike sound they do not move like waves through a liquid—instead, they diffuse.

Under rather special circumstances, however, these entropy or temperature fluctuations can propagate; this has been observed in super-fluid helium and in crystalline sodium fluoride at low temperatures, and is called second sound.

See also: Entropy ; Second sound. Scattering from entropy or temperature fluctuations is called Rayleigh scattering. In solids this process is obscured by scattering from defects and impurities. Under the assumption that the scattering in fluids is from particles much smaller than the wavelength of the exciting light, Lord Rayleigh derived in an equation, shown below ,.

Measurement of the ratio in Rayleigh's equation allows the determination of either Avogadro's number N or the molecular weight M of the fluid, if the other is known. The dependence of scattering intensity upon the inverse fourth power of the wavelength given in Rayleigh's equation is responsible for the fact that daytime sky looks blue and sunsets red: blue light is scattered out of the sunlight by the air molecules more strongly than red; at sunset, more red light passes directly to the eyes without being scattered.

Rayleigh's derivation of his scattering equation relies on the assumption of small, independent particles. Under some circumstances of interest, both of these assumptions fail. Colloidal suspensions provide systems in which the scattering particles are comparable to or larger than the exciting wavelengths. Such scattering is called the Tyndall effect and results in a nearly wavelength-independent that is, white scattering spectrum.

The Tyndall effect is the reason clouds are white the water droplets become larger than the wavelengths of visible light. See also: Tyndall effect. The breakdown of Rayleigh's second assumption—that of independent particles—occurs in all liquids.

There is strong correlation between the motion of neighboring particles. This leads to fixed phase relations and destructive interference for most of the scattered light. The remaining scattering arises from fluctuations in particle density discussed above and was first analyzed theoretically by A. Einstein in and by M. Smoluchowski in Rayleigh's basic theory has been extended by several authors. Rayleigh in and R. Gans in derived scattering formulas appropriate for spheres of finite size, and in P.

Debye extended the theory to include random coil polymers. The combined results of these three workers, generally called the Rayleigh-Gans-Debye theory, is valid for any size of particle, provided the refractive index n is near unity; whereas the Rayleigh theory is valid for any index, provided the particles are very small.

The index n of any medium would be unity if there were no scattering. A more complete theory than Rayleigh-Gans-Debye was actually developed earlier by G. Mie in ; however, Mie's theory generally requires numerical solution.