Experimental observation of light funneling in nonlinear systems highlights the role of thermodynamic principles.
We demonstrate the conservative funneling of light in a multimode nonlinear system, where light, irrespective of its initial distribution, converges into a localized channel. This thermodynamic-based phenomenon is experimentally observed in nonlinear time-synthetic mesh lattices.
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Dinani et al. (2025) studied this question.
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