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Laser-induced multiphoton processes in living cells.

1983; National Academy of Sciences; Volume: 80; Issue: 23 Linguagem: Inglês

10.1073/pnas.80.23.7197

1091-6490

P. Calmettes, Michael W. Berns,

Photoreceptor and optogenetics research

It is shown that specific light-induced subcellular alterations, usually referred to as phase "paling," result from multiphoton absorption processes. For green light (532 nm), four photons are required to induce paling in chromosomes and nucleoli; a two-photon process is observed for UV light (266 nm).