Detail publikace

COMPARISON OF THE 2-DIMENSIONAL FRAUNHOFER AND THE 2-DIMENSIONAL FRESNEL APPROXIMATIONS IN THE ANALYSIS OF SURFACE-ROUGHNESS BY ANGLE SPECKLE CORRELATION .1. THEORY

OHLÍDAL, M.

Anglický název

COMPARISON OF THE 2-DIMENSIONAL FRAUNHOFER AND THE 2-DIMENSIONAL FRESNEL APPROXIMATIONS IN THE ANALYSIS OF SURFACE-ROUGHNESS BY ANGLE SPECKLE CORRELATION .1. THEORY

Typ

Článek recenzovaný mimo WoS a Scopus

Jazyk

en

Originální abstrakt

In this paper we discuss some new theoretical results which we reached in the analysis of a random surface roughness in the framework of the two-dimensional (2D) Fresnel approximation. A comparison with 2D Fraunhofer approximation results is made. It is shown for experimentally reasonable values of the geometrical arrangement parameters of the method that the surface roughness measurement can be interpreted in the 2D Fraunhofer approximation only for surfaces with high slopes of surface irregularities. Surfaces with small slopes of irregularities require interpretation of the surface roughness measurement in the 2D Fresnel approximation. In this case, not only the standard deviation of surface height fluctuations but also the correlation length of the surface can be determined.

Klíčová slova anglicky

Laser speckle, surface roughness

Vydáno

1991-11-01

Nakladatel

TAYLOR & FRANCIS LTD

Místo

London

ISSN

0950-0340

Ročník

42

Číslo

10

Strany od–do

2115–2135

Počet stran

20

BIBTEX


@article{BUT38426,
  author="Miloslav {Ohlídal}",
  title="COMPARISON OF THE 2-DIMENSIONAL FRAUNHOFER AND THE 2-DIMENSIONAL FRESNEL APPROXIMATIONS IN THE ANALYSIS OF SURFACE-ROUGHNESS BY ANGLE SPECKLE CORRELATION .1. THEORY",
  journal="JOURNAL OF MODERN OPTICS",
  year="1991",
  volume="42",
  number="10",
  pages="2115--2135",
  issn="0950-0340"
}