A highly nonlocal optical response in space has been shown to heal several shortcomings of beam self-action in nonlinear optics. At the same time, nonlocality is often connected to limits and constraints in both temporal and spatial domains. We provide a brief and rather subjective review of what we consider the main benefits and some drawbacks of a highly nonlocal response in light localization through nonlinear optics, with several examples related to reorientational soft matter, specifically nematic liquid crystals.
Smyth, N., Piccardi, A., Alberucci, A., Assanto, G. (2016). highly nonlocal optical response: benefit or drawback?. JOURNAL OF NONLINEAR OPTICAL PHYSICS AND MATERIALS, 25(4), 1650043.