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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 9, Iss. 5 — May. 10, 2011
  • pp: 051901–

Efficient two-photon sensitized luminescence of europium (III) complex based on hypersensitive transitions

Meng Shi, Hua Li, Mei Pan, Fufang Su, Lili Ma, Peigao Han, and Hezhou Wang  »View Author Affiliations

Chinese Optics Letters, Vol. 9, Issue 5, pp. 051901- (2011)

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Red frequency-upconversion fluorescence emission is observed in europium (III) complex with encapsulating polybenzimidazole tripodal ligands, pumped with 930- and 1070-nm picosecond laser pulses. The luminescence of transition 5D0->7F2 (612 nm) is induced by two-photon absorption of hypersensitive transitions 7F0->5D2 (465 nm) and 7F1->5D1 (535 nm). Analysis results suggest that the two-photon excitation strength of these hypersensitive transitions is increased dramatically owing to the C3 symmetry of the coordination field.

© 2011 Chinese Optics Letters

OCIS Codes
(000.2190) General : Experimental physics
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(260.1560) Physical optics : Chemiluminescence
(350.5130) Other areas of optics : Photochemistry

Meng Shi, Hua Li, Mei Pan, Fufang Su, Lili Ma, Peigao Han, and Hezhou Wang, "Efficient two-photon sensitized luminescence of europium (III) complex based on hypersensitive transitions," Chin. Opt. Lett. 9, 051901- (2011)

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