Regular laser, 30 pC, x-x’ (left), y-y’ (right)

Hollow laser, 30 pC, x-x’ (left), y-y’ (right)

Regular laser, 180 pC, x-x’ (left), y-y’ (right)

hollow beam, 200 pC, x-x’ (left), y-y’ (right)

Regular, 380 pC, x-x’ (left) and y-y’ (right)

hollow, 380 pC, x-x’ and y-y’

Fig.2