Figure 4
From: Controllable light capsules employing modified Bessel-Gauss beams
Experimental implements and measurement results for various modified Bessel-Gauss modes.
(a) Normalized amplitude and (b) phase of a modified Bessel-Gauss mode (m = 1, l = 1) and the corres-ponding binary DMD pattern (c) to generate such mode encoding the desired field with super-pixel method. (d) Experimental setup. (e–h) Images of the generated Bessel-Gauss beams with various orders [(m = 1, l = 0), (m = 2, l = 0), (m = 0, l = 1), (m = 1, l = 1)] and the 1D intensity profiles reconstructed at y = 0. (i–l) The calculated intensity distributions corresponding to those in Fig. (e–h). The other parameters are the same for all the generated beams, which are ω0 = 250 μm and σ = 2.5.
