Detail publikace
Analytic description of wave fields in focal regions of diffractive lenses
CHMELÍK, R.
Anglický název
Analytic description of wave fields in focal regions of diffractive lenses
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
On the assumption that the transmission function of a diffractive lens is periodical, the Kirchhoff diffraction integral is evaluated analytically in the paraxial region. The amplitude of the wave is expressed in terms of the infinite series which rapidly converges in the vicinity of the focal point. Hence, only a small number of terms provides an acceptable approximation of the amplitude in this region. The new formalism includes also axial locations outside the focal planes. By means of the derived analytical expressions, the image parameters (resolution, depth of field) may be related to the parameters of the diffractive lens.
Anglický abstrakt
On the assumption that the transmission function of a diffractive lens is periodical, the Kirchhoff diffraction integral is evaluated analytically in the paraxial region. The amplitude of the wave is expressed in terms of the infinite series which rapidly converges in the vicinity of the focal point. Hence, only a small number of terms provides an acceptable approximation of the amplitude in this region. The new formalism includes also axial locations outside the focal planes. By means of the derived analytical expressions, the image parameters (resolution, depth of field) may be related to the parameters of the diffractive lens.
Klíčová slova anglicky
wave optics, focal region, focusing, diffractive optics, holographic optical elements
Rok RIV
1996
Vydáno
01.01.1996
ISSN
0950-0340
Časopis
Journal of Modern Optics
Ročník
43
Číslo
7
Počet stran
8
BIBTEX
@article{BUT38191,
author="Radim {Chmelík},
title="Analytic description of wave fields in focal regions of diffractive lenses",
journal="Journal of Modern Optics",
year="1996",
volume="43",
number="7",
month="January",
issn="0950-0340"
}