Nonlinear absorption and upconversion pr
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Dong Wang; Guangyong Zhou; Xinguang Xu; Xiaomei Wang; Zhiqiang Liu; Yan Ren; Zon
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Article
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2002
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Elsevier Science
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English
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Two-photon absorption (TPA) cross sections of an organic dye, trans-4-[p-(N -hydroxyethyl-N -methylamino) tyryl]-N -methylpyridinium iodide (abbreviated as ASPI), from 720 to 1100 nm have been measured by using nonlinear transmittance method, which re ect the TPA degrees of the dye at di erent wavel