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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 24, Iss. 16 — Aug. 15, 1999
  • pp: 1151–1153

Near-field probing of nanoscale nonlinear optical processes

D. Jakubczyk, Y. Shen, M. Lal, C. Friend, K. S. Kim, J. Świa̧tkiewicz, and P. N. Prasad  »View Author Affiliations


Optics Letters, Vol. 24, Issue 16, pp. 1151-1153 (1999)
http://dx.doi.org/10.1364/OL.24.001151


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Abstract

We report a study of two nonlinear optical processes at the nanoscale level, using a near-field probe: (i) two-photon-pumped upconversion from ZnS:Mn nanoparticles encapsulated with 2-[{(∈) -2-[4 -(ethylsulfonyl) phenyl]- 1-ethenyl} (methyl)anilino]- 1-ethanethiol and (ii) second-harmonic generation (SHG) from N -(4-nitrophenyl)- (L) -prolinol crystallites. The use of highly efficient nonlinear organic chromophores together with special processing on the nanometer scale made it possible to observe and characterize what are believed to be the smallest topographically distinguishable objects reported so far, using nonlinear optical techniques. Issues pertaining to the study of two-photon-excited emission and SHG by use of a near-field probe are discussed.

© 1999 Optical Society of America

OCIS Codes
(180.2520) Microscopy : Fluorescence microscopy
(180.5810) Microscopy : Scanning microscopy
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.3970) Nonlinear optics : Microparticle nonlinear optics
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter
(190.7220) Nonlinear optics : Upconversion

Citation
D. Jakubczyk, Y. Shen, M. Lal, C. Friend, K. S. Kim, J. Świa̧tkiewicz, and P. N. Prasad, "Near-field probing of nanoscale nonlinear optical processes," Opt. Lett. 24, 1151-1153 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-16-1151

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