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Amplified spontaneous emission in the spiropyran-biopolymer based system
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10.1063/1.3155203
/content/aip/journal/apl/94/24/10.1063/1.3155203
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/24/10.1063/1.3155203
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Emission and excitation spectra of fluorescent SP dye in DNA:CTMA matrix (a). Fluorescence spectrum has been collected using 360 nm wavelength excitation. Excitation spectrum has been collected observing fluorescence at 600 nm. UV irradiation (inset) enhances number of MR forms in the film and results in stronger luminescence observed upon 530 nm excitation.

Image of FIG. 2.
FIG. 2.

Integrated fluorescence of ASE intensity in function of ns pulsed laser excitation energy density. As an inset of the normalized spontaneous fluorescence emission and ASE for two excitation energy intensities: below and just above the ASE threshold is shown. The linewidth of the depicted emission converges from to .

Image of FIG. 3.
FIG. 3.

The ASE peak intensity changes in function of time while pumped by the picosecond pulsed laser with 10 Hz repetition rate-irradiation only with picosecond pulses of UV light (355 nm). Inset shows photoisomerization of the SP “off” form upon UV irradiation to its metastable, highly polar, and colored MR “on” form.

Image of FIG. 4.
FIG. 4.

The ASE peak intensity in function of time, while pumped by the picosecond laser with 10 Hz repetition rate under simultaneous irradiation with 355 and 532 nm pulses. Inset shows the difference of ASE for two pulse (355 and 532 nm) and single (355 nm) pulse illumination.

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/content/aip/journal/apl/94/24/10.1063/1.3155203
2009-06-16
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Amplified spontaneous emission in the spiropyran-biopolymer based system
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/24/10.1063/1.3155203
10.1063/1.3155203
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