Title

Two-Photon Fret-Based 3-D Optical Data Storage In A Composite Polymer Containing A Photochromic Diarylethene And A Fluorene Dye

Keywords

Diarylethene; High density data storage; Photochromic materials; Resonance energy transfer; Two-photon optical data storage

Abstract

In this proceeding we report the principles for a novel 3-D RET-based two-photon optical storage device based on a photochromic diarylethene (1,2-bis(2-methylbenzo[b]thiophen-3-yl) hexafluorocyclopentene (1) and a fluorene derivative (2,7-bis[4-(9,9-didecylfluoren-2-yl)vinyl] phenylbenzothiazole (2)), suitable for recording data in thick storage media. Data was recorded by linear (single-photon) and non-linear (two-photon) excitation of the closed form of diarylethene 1. The read-out mechanism is based on resonance energy transfer (RET) from fluorene derivative 2 to the closed form of diarylethene 1. Bright fluorescent data patterns were recorded onto the photosensitive film, providing excellent contrast and resolution. Two-photon characterization with a tunable mode-locked femtosecond Ti:sapphire laser gave evidence of the cycloreversion reaction from the closed to the open photoisomer by excitation at 800 nm. We demonstrated non-destructive readout of 3D data stored in multiple layers by using two-photon induced fluorescence modulation. Readout of the stored information can be done for >10,000 cycles without significantly compromising the stored data.

Publication Date

12-1-2006

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

6330

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.684535

Socpus ID

33751439706 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33751439706

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