Journal
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Volume 271, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jqsrt.2021.107745
Keywords
Generalized lorenz-Mie theories; Beam shape coefficients; Poynting vector; Non-dark axisymmetric beams; Dark axisymmetric beams; T-Matrix
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Funding
- National Council for Scientific and Technological Development (CNPq) [426990/2018-8, 307898/2018-0]
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This paper explores the symmetries of laser beam shape coefficients, extending known symmetries to new families. Examples and counter-examples are provided to illustrate these symmetries, and formal laboratories are proposed as a way to discover even more symmetries.
On the one hand, some electromagnetic symmetries of laser beams are reflected in symmetry properties of the Poynting vector. On the other hand, these symmetries are in turn embedded in symmetries relating the beam shape coefficients which encode the structure of laser beams. The present paper extends the beam shape coefficient symmetries of laser beams, already uncovered, to new families. Examples and counter-examples are furthermore provided to illustrate these symmetries and formal laboratories are proposed as a way to discover still more symmetries. (C) 2021 Elsevier Ltd. All rights reserved.
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