Determination of the beam centroid of an obstructed focused Gaussian laser beam
Diffraction of an obstructed focused Gaussian laser beam has been treated theoretically using the Huygens-Fresnel diffraction integral and was found to be in good agreement with experimental measurements. The obstruction is a vertically oriented opaque cylinder treated as a flat hard aperture. Measurements and calculations are compared for the diffracted irradiance profile and the beam centroid as a function of cylinder diameter and lateral and longitudinal placement along the optic axis. The cylinders used were gauge pins and/or wires with diameters from 0.5 to 100 mil.
- OSTI ID:
- 22036399
- Journal Information:
- Applied Optics, Vol. 48, Issue 22; Other Information: (c) 2009 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6935
- Country of Publication:
- United States
- Language:
- English
Similar Records
Huygens--Fresnel--Kirchhoff wave-front diffraction formulation: paraxial and exact Gaussian laser beams
Propagation characteristics of dark and antidark Gaussian beams in turbulent atmosphere
Transformation of a generalized Bessel–Laguerre–Gaussian beam by a paraxial ABCD optical system
Journal Article
·
Mon Jan 01 00:00:00 EST 1990
· Journal of the Optical Society of America, Part A: Optics and Image Science; (USA)
·
OSTI ID:22036399
Propagation characteristics of dark and antidark Gaussian beams in turbulent atmosphere
Journal Article
·
Thu Aug 15 00:00:00 EDT 2019
· Optical and Quantum Electronics
·
OSTI ID:22036399
Transformation of a generalized Bessel–Laguerre–Gaussian beam by a paraxial ABCD optical system
Journal Article
·
Thu Aug 15 00:00:00 EDT 2019
· Optical and Quantum Electronics
·
OSTI ID:22036399