Fig. 2
From: Single-shot measurement of the orbital-angular-momentum spectrum of light
Experimental results obtained with the lab-synthesized fields. a, b Measured output interferograms and the corresponding azimuthal intensities for input \(LG_{p = 0}^l\left( {\rho ,\phi } \right)\) modes with l = 1, 4, and 16 for δ c ≈ 2mπ and δ d ≈ (2m + 1)π, respectively, where m is an integer. c Measured output interferograms, the azimuthal intensities, and the measured spectrum for the synthesized input field with a Gaussian OAM-spectrum. d Measured output interferograms, the azimuthal intensities, and the measured spectrum for the synthesized input field with a Rectangular OAM-spectrum. In all the above azimuthal intensity plots, the red lines are the experimental plots and the black lines are the theoretical fits
