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Photothermal energy conversion is of fundamental importance to applications ranging from drug delivery to microfluidics and from ablation to fabrication. It typically originates from absorptive processes in materials that—when coupled with non‐radiative dissipative processes—allow the conversion of radiative energy into heat. Microstructure design provides versatile strategies for controlling light–matter...
In article number 2004732, Michael R. Bockstaller, George Fytas, and co‐workers demonstrate an order‐of‐magnitude amplification of optical absorption in low‐contrast opals formed by the self‐assembly of polymer‐tethered nanoparticles. The amplification is shown to be caused by the “slow photons effect” and to induce rapid “melting” of the opal films even in the absence of visible absorption. This...
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