title: Directly measuring the total orbital angular momentum in astigmatic structured beams and the loss of several degrees of freedom
abstract: In this article, a model of the astigmatic structured beam obtained by the ABCD matrix method is shown to be simpler and more visual compared to the approach of integral transforms [Volyar AV, Abramochkin EG, Bretsko MV, Khalilov SI, Akimova YE. Control of giant orbital angular momentum bursts of structured Laguerre-Gaussian beams in a medium with general astigmatism. Computer Optics 2024; 48(1): 35-46. DOI: 10.18287/2412-6179-CO-1395]. We study in detail physical mechanisms of shaping super-hig
journal: Computer Optics