Results 151 to 160 of about 358,541 (195)
Some of the next articles are maybe not open access.
2019
Neither geometrical optics nor wave optics can accurately describe the characteristics of a laser beam. The propagation characteristics of a laser beam must be described by a set of three Gaussian equations.
openaire +1 more source
Neither geometrical optics nor wave optics can accurately describe the characteristics of a laser beam. The propagation characteristics of a laser beam must be described by a set of three Gaussian equations.
openaire +1 more source
Optics Communications, 1994
Abstract New light beams of various orders are introduced. Their field distribution across the waist plane is similar to that produced by an ordinary gaussian beam except that the central region is flattened. The flat zone occupies a larger fraction of the cross section as the order of the beam increases. A simple propagation law is found.
openaire +1 more source
Abstract New light beams of various orders are introduced. Their field distribution across the waist plane is similar to that produced by an ordinary gaussian beam except that the central region is flattened. The flat zone occupies a larger fraction of the cross section as the order of the beam increases. A simple propagation law is found.
openaire +1 more source
GEOPHYSICS, 1990
Just as synthetic seismic data can be created by expressing the wave field radiating from a seismic source as a set of Gaussian beams, recorded data can be downward continued by expressing the recorded wave field as a set of Gaussian beams emerging at the earth’s surface. In both cases, the Gaussian beam description of the seismic‐wave propagation can
openaire +1 more source
Just as synthetic seismic data can be created by expressing the wave field radiating from a seismic source as a set of Gaussian beams, recorded data can be downward continued by expressing the recorded wave field as a set of Gaussian beams emerging at the earth’s surface. In both cases, the Gaussian beam description of the seismic‐wave propagation can
openaire +1 more source
2009
This chapter contains sections titled: Derivation of Basic Gaussian Beam Propagation Description of Gaussian Beam Propagation Geometrical Optics Limits of Gaussian Beam Propagation Higher Order Gaussian Beam Mode Solutions of the Paraxial Wave Equation The Size of Gaussian Beam Modes Gaussian Beam Measurement ...
openaire +1 more source
This chapter contains sections titled: Derivation of Basic Gaussian Beam Propagation Description of Gaussian Beam Propagation Geometrical Optics Limits of Gaussian Beam Propagation Higher Order Gaussian Beam Mode Solutions of the Paraxial Wave Equation The Size of Gaussian Beam Modes Gaussian Beam Measurement ...
openaire +1 more source
2013
A plane wave has a unique propagation direction and is not physically realizable since infinite energy is required for its launching. Nearly plane waves or beams are formed by a group of plane waves having a narrow range of propagation directions about a specified direction.
openaire +1 more source
A plane wave has a unique propagation direction and is not physically realizable since infinite energy is required for its launching. Nearly plane waves or beams are formed by a group of plane waves having a narrow range of propagation directions about a specified direction.
openaire +1 more source
2009
This chapter contains sections titled: Introduction Ray Matrices and the Complex Beam Parameter Gaussian Beam Transformation by Focusing Elements Mode Matching Complex Beam Parameter and Smith Chart Representation Transformation of Higher Order Gaussian Beam Modes Bibliographic ...
openaire +1 more source
This chapter contains sections titled: Introduction Ray Matrices and the Complex Beam Parameter Gaussian Beam Transformation by Focusing Elements Mode Matching Complex Beam Parameter and Smith Chart Representation Transformation of Higher Order Gaussian Beam Modes Bibliographic ...
openaire +1 more source
2009
This chapter contains sections titled: Introduction Axially Aligned Beams Tilted Beams Offset Beams Bibliographic ...
openaire +1 more source
This chapter contains sections titled: Introduction Axially Aligned Beams Tilted Beams Offset Beams Bibliographic ...
openaire +1 more source
Tunable elastic metasurface based on adjustable impedances for Gaussian beam manipulation
International Journal of Mechanical Sciences, 2023Feng Liu
exaly
A review of the numerical investigation on the scattering of Gaussian beam by complex particles
Physics Reports, 2014Zhiwei Cui
exaly
Light scattering from a sphere arbitrarily located in a Gaussian beam, using a Bromwich formulation
Journal of the Optical Society of America A: Optics and Image Science, and Vision, 1988Gérard gouesbet
exaly