A decade ago, the anti-laser made waves as a new type of perfect absorber that functions as a one-way trap door for light. Experiments have now demonstrated the control of light without absorbing it.
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Stone, A.D. Anti-laser shows how to make waves behave. Nat. Phys. 20, 14–15 (2024). https://doi.org/10.1038/s41567-023-02252-8
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DOI: https://doi.org/10.1038/s41567-023-02252-8
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