光泳(英語:Photophoresis)是指懸浮在氣體氣溶膠)或液體氣溶膠)中的小粒子,當被足夠強度的照射時,會開始往遠離光源的方式移動的現象。光泳的原因是因為在流體中的小粒子,受光照射後出現不均勻溫度分佈所造成[1]

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