3 papers
physics.optics2026
Low-Divergence Quasi-Gaussian Emission at Watt-Level Power from a Large-Diameter Ring-Aperture VCSEL
Marta WiÄckowska, Luke Graham, James Guenter +8
The far-field emission of large-area vertical-cavity surface-emitting lasers (VCSELs) is commonly associated with multimode, high-divergence beam profiles, limiting applicability i…
math-ph2025
An example of algebraically general para-Kähler Einstein space
Adam Chudecki, MichaÅ Dobrski
Algebraically general para-Kähler Einstein spaces equipped with 3D algebras of infinitesimal symmetries are considered. It is shown that if the algebra contains 2D trivial subalge…
quant-ph2024
Note on rotational properties of position operators of massless particles
Michal Dobrski
Nonlinear action of the group of spatial rotations on commuting components of a position operator of a massless particle of arbitrary helicity is studied. It is shown that lineariz…