If light can bounce around inside an optical fiber, can a high-intensity light curtain act like a wall in the transverse direction?

Photons interact mostly electromagnetically. However, since photons carry energy and momentum, photons can also interact gravitationally (directly). At high energies, photons can also participate in the weak interaction and interact indirectly with quarks. But when using very high-energy photons, they eventually produce jets and particle showers. I then thought of the optical tweezer. However, that works primarily in the longitudinal direction, where the light travels. Classical light itself does not carry transverse momentum, unless we treat it quantum mechanically as a field and consider the uncertainty effect at second order and above. Suppose, for a laser cavity, we could somehow expose one direction of its flat surface (i.e., remove the top of the laser cavity) so that it could form a slightly scattered "light curtain" (say, we could make it sufficiently well-defined that it obeys the limit imposed by the uncertainty principle). Could that light curtain be used to hold things in the perpendicular direction, transverse to the direction in which the light was traveling? Technically, the EM field has a transverse gradient directly. However, I'm thinking about the quantum scale slightly beyond such a strong "laser tweezer region." The ( $p_z<0$ ) component becomes ( $p_z>0$ ) after scattering off the other side of the laser cavity that has not been removed. At a sufficiently large depth, it would mostly act like a tweezer. However, near the edge of the curtain, the mathematics should be different. The uncertainty principle should produce a weak but realistic transverse component, and do so very uniformly. With two or three of these together, we might be able to create a partial container for materials that would annihilate with charged massive particles and collect those materials in large quantities (perhaps under weak gravity). A conventional laser tweezer only holds things near its focal point. The light curtain could also act as a way to transport and interact with those materials. In theory, one might consider simply shining a flashlight in the transverse direction, but it would be highly non-uniform (both spatially and temporally) and perhaps too strong compared with the dense light curtain. Is such light curtain allowed? Can we increase its energy sufficiently high to hold or collect materials from cosmic ray in lower orbital? If light can bounce around inside an optical fiber, can a high-intensity light curtain act like a wall in the transverse direction?