منابع مشابه
Coherence effects in Mie scattering.
The scattering of a partially coherent beam by a deterministic, spherical scatterer is studied. In particular, the Mie scattering by a Gaussian Schell-model beam is analyzed. Expressions are derived for (a) the extinguished power, (b) the radiant intensity of the scattered field, and (c) the encircled energy in the far field. It is found that the radiant intensity and the encircled energy in th...
متن کاملTunable, anomalous Mie scattering using spatial coherence.
We demonstrate that a J0-Bessel-correlated beam that is incident on a homogeneous sphere produces a highly unusual distribution of the scattered field, with the maximum no longer occurring in the forward direction. Such a beam can be easily generated using a spatially incoherent, annular source. Moreover, the direction of maximal scattering can be shifted by changing the spatial coherence lengt...
متن کاملLorenz-Mie light scattering in cellular biology.
The Lorenz-Mie light scattering is discussed as a tool allowing living cell characterization. The scattered light carries information about the size, shape, internal structure and refractive index of the cell. The advantages of light scattering methods consist in high speed, nondestructive, sensitive and relatively easy measurements. Light scattering methods are compatible with other methods. I...
متن کاملMore on patterns in Mie scattering
The powerlaw patterns in Mie scattering (the normalized light intensity IðhÞ=Ið0Þ vs. the dimensionless qR where q 1⁄4 4pk 1 sin h 2 is the magnitude of the wave vector transfer at the scattering angle h for wavelength k, and R is the radius of the nonabsorbing sphere with a relative refractive index m > 1) are analyzed using the geometrical optics approximation for particles of a large size pa...
متن کاملImaging Flow Velocimetry with Laser Mie Scattering
Imaging flow velocity measurements are essential for the investigation of unsteady complex flow phenomena, e.g., in turbomachines, injectors and combustors. The direct optical measurement on fluid molecules is possible with laser Rayleigh scattering and the Doppler effect. However, the small scattering cross-section results in a low signal to noise ratio, which hinders time-resolved measurement...
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ژورنال
عنوان ژورنال: Journal of the Optical Society of America A
سال: 2011
ISSN: 1084-7529,1520-8532
DOI: 10.1364/josaa.29.000078