Pl. Ramazza et al., ONE-DIMENSIONAL TRANSPORT-INDUCED INSTABILITIES IN AN OPTICAL-SYSTEM WITH NONLOCAL FEEDBACK, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 52(5), 1995, pp. 5524-5531
We present theoretical and experimental evidence of pattern forming in
stabilities induced by the nonlocal interaction of the light signal wi
th itself, in an optical system formed by a liquid-crystal light valve
with feedback. For a defocusing medium, the model predicts a reduced
instability threshold for pattern formation as a result of nonlocality
. The conditions for the onset of drifting mode instability are analyt
ically derived. The experimental results quantitatively confirm the pr
edictions of the model.