Trans-4-(Dimethylamino)-4′-(diethylamino) stilbene(DMAEAS) has been synthesized and characterized by 1H NMR, IR and elemental analysis. The UV spectrum of the compound has been recorded. The single photon fluorescenc...Trans-4-(Dimethylamino)-4′-(diethylamino) stilbene(DMAEAS) has been synthesized and characterized by 1H NMR, IR and elemental analysis. The UV spectrum of the compound has been recorded. The single photon fluorescence spectrum of the compound under 370 nm excitation shows the presence of two bands at 420 nm and 438 nm, respectively.展开更多
Trans 4 (N,N ′ dimethyl amino) 4′ ( N,N′ diethyl amino) stilbene (DMAEAS) has been synthesized and characterized by 1H NMR spectra, IR spectra, and elemental analyses. Its linear absorption, single ...Trans 4 (N,N ′ dimethyl amino) 4′ ( N,N′ diethyl amino) stilbene (DMAEAS) has been synthesized and characterized by 1H NMR spectra, IR spectra, and elemental analyses. Its linear absorption, single photon induced fluorescence and two photon induced fluorescence are experimentally studied. This new dye has a great two photon absorption (TPA) cross section of σ 2=1 16×10 -46 cm 4·s/photon at 532 nm by using an open aperture Z scan system. When pumped with 800 nm laser irradiation, DMAEAS shows a strong two photon induced blue fluorescence of 440 nm.展开更多
文摘Trans-4-(Dimethylamino)-4′-(diethylamino) stilbene(DMAEAS) has been synthesized and characterized by 1H NMR, IR and elemental analysis. The UV spectrum of the compound has been recorded. The single photon fluorescence spectrum of the compound under 370 nm excitation shows the presence of two bands at 420 nm and 438 nm, respectively.
基金ProjectsupportedbytheMajorStateBasicResearchDevelopmentProgram (No .G19980 614 0 2 )andtheNationalNaturalScienceFoundationofChina (No .5 0 173 0 15 ) .
文摘Trans 4 (N,N ′ dimethyl amino) 4′ ( N,N′ diethyl amino) stilbene (DMAEAS) has been synthesized and characterized by 1H NMR spectra, IR spectra, and elemental analyses. Its linear absorption, single photon induced fluorescence and two photon induced fluorescence are experimentally studied. This new dye has a great two photon absorption (TPA) cross section of σ 2=1 16×10 -46 cm 4·s/photon at 532 nm by using an open aperture Z scan system. When pumped with 800 nm laser irradiation, DMAEAS shows a strong two photon induced blue fluorescence of 440 nm.
