Colloidal random lasers are hard to design and control. Combining optically controlled micro-heaters with thermophilic particles attracted by them leads to microlasers with programmable and reversible patterns.
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Ghofraniha, N. Thermally reconfigurable random lasers. Nat. Phys. 18, 860–861 (2022). https://doi.org/10.1038/s41567-022-01665-1
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DOI: https://doi.org/10.1038/s41567-022-01665-1
