In:
Applied Physics Letters, AIP Publishing, Vol. 96, No. 10 ( 2010-03-08)
Abstract:
We report an unusual phenomenon in amplified spontaneous emission (ASE) from cyano-substituted oligo(p-pheny lenevinylene) (CNDPASDB) single crystals, i.e., the ASE peak wavelength, exhibits varied dependence on the pumping wavelength λex. The former is basically kept a constant when λex & lt;505 nm, while a rapid redshift from 560 to 572 nm occurs when λex & gt;505 nm. The observation is different from stimulated Raman resonant scattering (SRRS) in two following aspects: the nonconstant Stokes shift and a much broader emission linewidth. A model describing competition between the stimulated emission and vibration relaxations has been proposed to interpret the underlying mechanism.
Type of Medium:
Online Resource
ISSN:
0003-6951
,
1077-3118
Language:
English
Publisher:
AIP Publishing
Publication Date:
2010
detail.hit.zdb_id:
211245-0
detail.hit.zdb_id:
1469436-0
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