Unlike fictional laser swords, real laser beams do not interact with each other when they cross--unless the beams meet within a suitable material allowing for nonlinear light-matter interaction. In such a case, wave mixing can give rise to beams with changed colors and directions.
Unlike fictional laser swords, real laser beams do not interact with each other when they cross--unless the beams meet within a suitable material allowing for nonlinear light-matter interaction. In such a case, wave mixing can give rise to beams with changed colors and directions.
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