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"
}