http://www.cnr.it/ontology/cnr/individuo/prodotto/ID721
Amplified spontaneous emission and waveguiding properties of the colored merocyanine form of (1 ',3 '-dihydro-1 ',3 ',3 '-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2 '-(2H)-indole] molecules (Articolo in rivista)
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- Amplified spontaneous emission and waveguiding properties of the colored merocyanine form of (1 ',3 '-dihydro-1 ',3 ',3 '-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2 '-(2H)-indole] molecules (Articolo in rivista) (literal)
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- 2006-01-01T00:00:00+01:00 (literal)
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Persano, L; Mele, E; Athanassiou, A; Cingolani, R; Pisignano, D (2006)
Amplified spontaneous emission and waveguiding properties of the colored merocyanine form of (1 ',3 '-dihydro-1 ',3 ',3 '-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2 '-(2H)-indole] molecules
in Chemistry of materials
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Persano, L; Mele, E; Athanassiou, A; Cingolani, R; Pisignano, D (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Univ Lecce, CNR, INFM, NNL, I-73100 Lecce, Italy; FORTH, Inst Elect Struct & Laser, Iraklion 71110, Crete, Greece (literal)
- Titolo
- Amplified spontaneous emission and waveguiding properties of the colored merocyanine form of (1 ',3 '-dihydro-1 ',3 ',3 '-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2 '-(2H)-indole] molecules (literal)
- Abstract
- We report a complete study of the properties of amplified spontaneous emission (ASE) of the merocyanine form of the photochromic system, 1', 3'-dihydro-1', 3', 3'-trimethyl-6-nitrospiro[2H-1-benzopyran- 2,2'-(2H)- indole], under nanosecond excitation conditions. ASE line narrowing is clearly observed for excitation densities larger than 400 mu J cm(-2) with a threshold pumping length in the range 0.5-1.2 mm. Remarkable waveguiding properties were observed, with losses throughout the organic slab of about 5.7 cm(-1). The observation of ASE is discussed in terms of a possible S-1-dominated photoconversion and excitation/de-excitation dynamics of the photochromic system. These results are important in view of the application of merocyanine-based films as active layers for potentially gateable laser devices. (literal)
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