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Optics Letters

Optics Letters


  • Vol. 21, Iss. 22 — Nov. 15, 1996
  • pp: 1848–1850

Two-photon-excited fluorescence enhanced by a surface plasmon

Hiroshi Kano and Satoshi Kawata  »View Author Affiliations

Optics Letters, Vol. 21, Issue 22, pp. 1848-1850 (1996)

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We demonstrate a technique that utilizes surface-plasmon resonance to intensify the fluorescence produced by multiphoton excitation. By enhancing the electric field initially generated by the excitation laser light, the presence of plasmon resonance introduces a gain 90 times higher in the experimentally observed fluorescence intensity than that produced from total internal reflection fluorescence. We also analyze the enhancement efficacy of surface-plasmon resonance as a function of the excitation wavelength.

© 1996 Optical Society of America

Original Manuscript: June 3, 1996
Published: November 15, 1996

Hiroshi Kano and Satoshi Kawata, "Two-photon-excited fluorescence enhanced by a surface plasmon," Opt. Lett. 21, 1848-1850 (1996)

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