Focused Gaussian beam in the paraxial approximation

Year: 2020

Authors: Das A., Soltani N., Agio M.

Autors Affiliation: Univ Siegen, Lab Nanoopt & C, D-57072 Siegen, Germany; Natl Res Council CNR, Natl Inst Opt INO, I-50125 Florence, Italy.

Abstract: A focused Gaussian beam represents a case of highly practical importance in many areas of optics and photonics. We derive analytical expressions for a focused Gaussian beam in the paraxial approximation, considering an arbitrary lens filling factor. We discuss the role of higher-order Bessel functions of the first kind in defining the electric field in the focal region.

Journal/Review: OPTICS LETTERS

Volume: 45 (24)      Pages from: 6752  to: 6754

More Information: Universitat Siegen; Deutsche Forschungsgemeins chaft (INST 221/118-1 FUGG); Bundesministerium fur Bildung und Forschung (13N14746).
KeyWords: focused beams; paraxial approximation
DOI: 10.1364/OL.414302

Citations: 1
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