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Optics Letters

Optics Letters


  • Vol. 26, Iss. 21 — Nov. 1, 2001
  • pp: 1687–1689

Second-harmonic generation in a near-field optical-fiber probe

Tadashi Kawazoe, Takashi Shimizu, and Motoichi Ohtsu  »View Author Affiliations

Optics Letters, Vol. 26, Issue 21, pp. 1687-1689 (2001)

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Second-harmonic generation (SHG) in a near-field optical-fiber probe was observed. The tip of the probe consists of a triple-tapered fiber with an aluminum coating. For a fiber probe with an aperture size of 100 nm, the SHG conversion factor was 2.0 × 10-11cm2/W , which is as large as that of a 5-mm KDP crystal. In a probe-to-probe experiment, we demonstrated that SHG took place at the aluminum coating on the fiber probe.

© 2001 Optical Society of America

OCIS Codes
(190.4350) Nonlinear optics : Nonlinear optics at surfaces
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(350.3950) Other areas of optics : Micro-optics

Tadashi Kawazoe, Takashi Shimizu, and Motoichi Ohtsu, "Second-harmonic generation in a near-field optical-fiber probe," Opt. Lett. 26, 1687-1689 (2001)

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