|
|
|
|
|
Kevin J. Parker and Miguel A. Alonso
The free space solution to the wave equation in spherical coordinates is well known as a separable product of functions. Re-examination of these functions, particularly the sums of spherical Bessel and harmonic functions, reveals behaviors which can prod...
ver más
|
|
|
|
|
|
|
|
|
|
|
Nikita Stsepuro, Pavel Nosov, Maxim Galkin, George Krasin, Michael Kovalev and Sergey Kudryashov
This paper investigated the diffraction of a Gaussian laser beam on a binary mask and a refractive axicon. The principles of the formation of a zero-order Bessel beam with sharp drops of the axial field intensity edges were discussed. A laser optical sys...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shibao Deng, Yun Zhu and Yixin Zhang
By using the two-frequency coherence function model of a beam in a turbulent medium and the localized wave theory of the polychromatic beam, we develop the spectrum average mutual coherence function of the localized wave of Bessel?Gaussian amplitude enve...
ver más
|
|
|
|
|
|
|
|
|
|
|
Andrew J. Hull and Daniel Perez
This paper derives an analytical model of a circular beam with a T-shaped cross section for use in the high-frequency range, defined here as approximately 1 to 50 kHz. The T-shaped cross section is composed of an outer web and an inner flange. The web in...
ver más
|
|
|
|
|
|