Optical data storage was performed with various thin polymer films containing coumarin-based derivatives and by using femtosecond laser pulses as well as two-photon absorption processes. Exploring the photodimerization attribute of coumarin derivatives and using appropriate irradiation wavelengths, recording/erasing processes could be carried out in the same area. Second harmonic generation microscopy was used to read the stored information.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6273180 | PMC |
http://dx.doi.org/10.3390/molecules21020147 | DOI Listing |
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