Solvent effect on two-photon absorption and fluorescence of rhodamine dyes.
Solvent effect on two-photon absorption and fluorescence of rhodamine dyes.
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DOI：
10.1016/j.jphotochem.2009.06.007
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发表时间：
2009-08-15
影响因子：
4.3
通讯作者：
Goswami, Debabrata
中科院分区：
文献类型：
--
作者：
Nag, Amit;Goswami, Debabrata
对一系列罗丹明染料在不同溶剂中的双光子吸收（TPA）和双光子荧光（TPF）进行了研究。这些染料的溶剂依赖的TPA光谱测量与开放式孔径Z-扫描方法，并比较它们各自的单光子光谱在相同的能量。在TPA光谱中，相对峰强度和位置是高度依赖于溶剂的，这可能是依赖于溶剂环境的电子振动耦合的结果。测得的TPA横截面的罗丹明染料在非极性溶剂中始终较高。并阐明了TPA与TPF之间的某些互补性和相似性。最后，一个双光子图的优点，这些染料在不同的溶剂作为波长的函数。
For a series of rhodamine dyes, two-photon absorption (TPA) and two-photon fluorescence (TPF) have been performed in different solvents. Solvent-dependent TPA spectra of these dyes were measured with open aperture z-scan method and compared to their respective single-photon spectra at equivalent energies. In the TPA spectra, relative peak intensities and positions are highly solvent dependent, which could be a result of vibronic couplings that depend on solvent environment. Measured TPA cross-sections of rhodamine dyes are consistently higher in nonpolar solvents. Certain complementary and similarity between TPA and TPF are also elucidated. Finally, a two-photon figure-of-merit is presented for these dyes in different solvents as a function of wavelength.
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影响因子：
2.8
作者：
Nag, Amit;Singh, Sherdeep;Goswami, Debabrata
通讯作者：
Goswami, Debabrata
影响因子：
6.1
作者：
Fontaine, M;Elmquist, WF;Miller, DW
通讯作者：
Miller, DW
影响因子：
2.8
作者：
Fitilis, I.;Fakis, M.;Mikroyannidis, J.
通讯作者：
Mikroyannidis, J.
影响因子：
1.9
作者：
Chen, QY;Sargent, EH;Attias, AJ
通讯作者：
Attias, AJ
DOI：
10.1088/0953-4075/42/6/065103
发表时间：
2009-03-28
影响因子：
1.6
作者：
Nag, Amit;De, Arijit Kumar;Goswami, Debabrata
通讯作者：
Goswami, Debabrata