Fig. 1: System concept.

a Schematics illustrating light-mediated interaction between two responsive polymers via a feedback loop. Inset is illustration of feedback, →, induce, –|, prohibit. The green line and red line indicate the propagation of two laser beams. b Photographs showing a baffle-actuator system in the relaxed state (top) and deformed state upon light illumination (bottom). The arrow indicates the bending direction of the LCE strip upon actuation. Schematics of baffle-actuator systems depicting the (−)operator (c) and (+)operator (d) that cut off or cut on the light beam when actuated. Relaxed/active (−)operator passes/blocks the light; Relaxed/active (+)operator blocks/passes the light.