“…So far, systems for which both sensing and actuation can be done optically represent the only exception. For instance, all-optical analog feedback loops have proved effective for control of pattern formation in nonlinear optical systems [43,53,55,64], while the applicability of thermalized optical perturbations for control of thin film flows has been demonstrated by Semwogerere and Schatz [74] and Garnier et al [22].…”