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Amplified spontaneous emission in the cyano-substituted oligo(p-phenylenevinylene) organic crystals: Effect of excitation wavelength
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10.1063/1.3359848
/content/aip/journal/apl/96/10/10.1063/1.3359848
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/10/10.1063/1.3359848
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Figures

Image of FIG. 1.
FIG. 1.

(a) Excitation spectra of a CNDPASDB single crystal (monitored at different wavelength). Inset: the photograph of the crystal under fluorescence microscope and the chemical structure of CNDPASDB. (b) PL spectra acquired at variable excitation wavelength.

Image of FIG. 2.
FIG. 2.

(a) Normalized light emission spectra of CNDPASDB crystals above the ASE threshold at varied excitation wavelength. (b) Relationship between the ASE emission wavelength and excitation wavelength in CNDPASDB organic crystal.

Image of FIG. 3.
FIG. 3.

(a) ASE emission shift with varied excitation wavelength. Inset: off-resonant Raman spectrum of CNDPASDB crystals. (b) Proposed ASE and vibration relaxation competition model to explain the ASE line shift. VR: vibrational relaxation; IC: internal conversion; E: excitation; and SE: stimulated emission.

Image of FIG. 4.
FIG. 4.

PL peak intensity of light emission as a function of the incident laser energy intensity at different wavelengths.

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/content/aip/journal/apl/96/10/10.1063/1.3359848
2010-03-12
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Amplified spontaneous emission in the cyano-substituted oligo(p-phenylenevinylene) organic crystals: Effect of excitation wavelength
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/10/10.1063/1.3359848
10.1063/1.3359848
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