Two-photon fluorescence excitation and optoacoustic spectra of polyDCHD-HS

被引:0
|
作者
Moroni, L [1 ]
Salvi, PR [1 ]
Gellini, C [1 ]
Dellepiane, G [1 ]
Comoretto, D [1 ]
Cuniberti, C [1 ]
机构
[1] Univ Florence, Dipartimento Chim, Lab Spettroscopia Mol, I-50121 Florence, Italy
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中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The two-photon absorption spectrum of red polyDCHD-HS in benzene solution has been measured by means of fluorescence excitation and optoacoustic detection in the 1600-750 run exciting wavelength region. Two band systems have been observed and assigned to two-photon allowed A(g) --> A(g) transitions, both at energies higher than that of the one-photon allowed 1B(u) state. An estimate of the two-photon absorptivity is given at 406 nm using optoacoustic detection.
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页码:264 / 270
页数:7
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