Low threshold amplified spontaneous emission based on coumarin 151 encapsulated in mesoporous SBA-15
Data(s) |
2006
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Resumo |
Amplified spontaneous emission (ASE) characteristics of a blue dye coumarin 151 encapsulated in a highly ordered mesoporous SBA-15 were studied. The spectra narrowing was observed and found that the threshold and loss were greatly reduced, and the gain is significantly increased compared with spin-coated coumarin 151 doped poly(4-vinylphenol) film. The ASE threshold, gain, and loss, respectively, reached 0.55 mJ pulse(-1) cm(-2), 44.78 cm(-1), and 8.9 cm(-1) for the coumarin 151 encapsulated in mesoporous SBA-15 film. The optimized lasing action owes much to the effects of the better spatial confinement of the molecules in the ordered mesoporous structure of the host SBA-15. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Zhang DK;Zhang SM;Ma DG;Gulimina;Li XT.Low threshold amplified spontaneous emission based on coumarin 151 encapsulated in mesoporous SBA-15,APPLIED PHYSICS LETTERS ,2006,89(23):文献编号:231112 |
Palavras-Chave | #SEMICONDUCTING POLYMER #FILMS #GAIN |
Tipo |
期刊论文 |