Laser-light and interactions with particles (LIP), 2020

Abstract

Previous JQSRT special issues devoted to the "Laser-light and Interactions with Particles (LIP)" conferences were accompanied by prefaces written for issues published in a single volume, followed by peer-reviewer papers based on the topics discussed, but not necessarily presented, during the conferences, see [1] in [2], [3] in [4], and [5] in [6]. Papers associated to the LIP-conference in 2018 however, have been published as a virtual topical issue, the word "virtual" meaning that the papers have been published once they have been accepted, rather than collected in a single issue of JQSRT. In other words, the authors of accepted manuscripts have seen their papers o¢ cially published without having to wait for the rest of the manuscripts to get accepted. The corresponding preface/afterword was published in 2019 [7]. The 2020 conference was scheduled to be held in Warsaw, Poland, but has been postponed to 2022 due to the Covid pandemic. It has been decided, nevertheless, to publish another virtual issue of JQSRT to limit the e¤ects of the impact of the pandemic and stick to a tradition as much as possible.LIP conferences were in the …liation of a series of conferences which started under the name of "Optical Particle Sizing, OPS, theory and practice" in Rouen,