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. 1983 Dec;80(23):7197-9.
doi: 10.1073/pnas.80.23.7197.

Laser-induced multiphoton processes in living cells

P P Calmettes, M W Berns

Laser-induced multiphoton processes in living cells

P P Calmettes et al. Proc Natl Acad Sci U S A. 1983 Dec.

Abstract

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).

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