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Optical control of recovery speed of photoinduced third-harmonic generation in azo-copolymer thin films
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10.1063/1.2185078
/content/aip/journal/apl/88/13/10.1063/1.2185078
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/13/10.1063/1.2185078
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Figures

Image of FIG. 1.
FIG. 1.

Photoinduced time evolution of TH signal in DR1-PMMA copolymer thin films. The polarization of probe beam is parallel (a) and perpendicular (b) with that of the pump beam. The probe intensity was fixed at while the pump intensity was varied. On and off indicate the moments at which the pump was turned on and off, respectively.

Image of FIG. 2.
FIG. 2.

(a) Comparison of time evolutions of the TH signal for samples irradiated by a cw and a nanosecond lasers at . The average intensities of both irradiation sources are . The inset of (a) is an atomic force microscope picture showing the modulation of surface morphology of thin films induced by high irradiation intensity of the nanosecond laser. (b) Time evolution of the TH signal during the formation of periodic grating obtained by means of two-beam interference technique at . The inset of (b) is an atomic force microscope picture of the sample after being irradiated by the two-beam interference technique.

Image of FIG. 3.
FIG. 3.

Demonstration of the possibility of using DR1-PMMA copolymer thin films for multiple write/erase optical data storage application. The data could be recorded by using low intensity and erased by high intensity of a pulsed laser. Dotted lines and solid lines indicate the moments at which the pump with low intensity and with high intensity was turned on (-on) and off (-off), respectively.

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/content/aip/journal/apl/88/13/10.1063/1.2185078
2006-03-31
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Optical control of recovery speed of photoinduced third-harmonic generation in azo-copolymer thin films
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/13/10.1063/1.2185078
10.1063/1.2185078
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