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Observation of the time evolution of persistent holes in an organic amorphous system using a diode laser

✍ Scribed by Hiroki Nakatsuka; Kazuki Inouye; Sadao Uemura; Ryuzi Yano

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 311 KB
Volume: 171
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(90)85234-4

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✦ Synopsis

By rapid current sweep of the wavelength of a diode laser, we have observed the time evolution of the persistent hole in 1,3,3,1',3',3'-hexamethyl-2,2'-indotricarbocyanine iodide embedded in poly(viny1 alcohol) in the range from 10 ms to 5000 s after burning. Following a rapid decay until about 0.1 s, the hole depth decreased logarithmically as a function of time. By using this method, we could probe a single hole more than a thousand times with a good signal to noise ratio. The time evolution of the hole-erasing process by the irradiation with a light-emitting diode has also been observed.

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