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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 29, Iss. 1 — Jan. 1, 2004
  • pp: 62–64

Highly efficient second-harmonic nanosource for near-field optics and microscopy

M. Labardi, M. Allegrini, M. Zavelani-Rossi, D. Polli, G. Cerullo, S. De Silvestri, and O. Svelto  »View Author Affiliations


Optics Letters, Vol. 29, Issue 1, pp. 62-64 (2004)
http://dx.doi.org/10.1364/OL.29.000062


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Abstract

A nanometric source of second-harmonic (SH) light with unprecedented efficiency is demonstrated; it exploits the grazing-incidence illumination of a metal tip, which is conventionally used for atomic force microscopy, by 25-fs laser pulses of a high-energy Ti:sapphire oscillator. Tip scanning around the beam focus shows that the SH generation is strongly localized at its apex. The polarization dependence of the SH light complies with the model of an on-axis nonlinear oscillating dipole.

© 2004 Optical Society of America

OCIS Codes
(180.5810) Microscopy : Scanning microscopy
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

Citation
M. Labardi, M. Allegrini, M. Zavelani-Rossi, D. Polli, G. Cerullo, S. De Silvestri, and O. Svelto, "Highly efficient second-harmonic nanosource for near-field optics and microscopy," Opt. Lett. 29, 62-64 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-1-62

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