Three-photon induced photobleaching in a three-dimensional memory material.
The photobleaching properties of a 3D memory material based on pyrylium salts are studied. It is shown that under ultrashort pulsed irradiation photobleaching occurs through two diverse mechanisms. One is major and causes fast bleaching, whereas the other is minor and causes slow bleaching. Furthermore, it is proved that both mechanisms are three- or more-photon processes. This fact gives the capability of significantly increasing data storage density.
Polyzos
I
I
Department of Physics, University of Patras, P.O. Box 1414, Patras 26500, Greece. ipolyzos@physics.upatras.gr
Tsigaridas
G
G
Fakis
M
M
Giannetas
V
V
Persephonis
P
P
D039301:Computers, Molecular; D036681:Fluorescence Recovery After Photobleaching / Q000379:methods*; D016247:Information Storage and Retrieval / Q000379:methods*; D008422:Materials Testing; D036641:Microscopy, Fluorescence, Multiphoton / Q000379:methods*; D038761:Photobleaching