Figure 2
Numerical simulation and experimental measurement of the superposition volume of two counter-propagating LG beams. (a) shows numerically simulated intensity pattern within one wavelength (\(\lambda = \)532 nm) of the counter-propagating superposition of the beams depicted in the left and right inset. The colormaps for intensity (green) and phase (jet colors) are depicted in (a). The insets show the intensity pattern at the top and the phase pattern below. (b) shows the intensity pattern in experiment. The insets show the intensity of each beam at the top and the corresponding measured phase below. Simulations and analyses are performed with MATLAB (MathWorks, R2018a), graphical design with Inkscape 0.92.
