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Beam transformation by defocused imaging lens
Author(s) -
Chu T. S.,
Gans M. J.
Publication year - 1988
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650011002
Subject(s) - optics , lens (geology) , spherical aberration , beam (structure) , diffraction , interference (communication) , radiation , physics , truncation (statistics) , amplitude , materials science , engineering , computer science , telecommunications , channel (broadcasting) , machine learning
The effects of spherical aberration and beam truncation have been clarified in the beam transformation of laser radiation by a defocused imaging lens. Excellent agreement was obtained between calculated and measured patterns. Amplitude ripples of about 1 dB are primarily caused by interference between geometrical optic rays and edge diffraction rays.