Tunable nonlinear effects through focused spatially phase-shaped beams

L. Turquet, G. Bautista, L. Karvonen, V. Dhaka, Y. Chen, H. Jiang, T. Huhtio, H. Lipsanen, M. Kauranen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

The optical properties of anisotropic material systems depend on the polarization of light. In order to fully utilize this for arbitrarily oriented individual nano-objects, such as anisotropic molecules, nanowires, or metal nanoparticles, it is necessary to be able to control the three-dimensional (3D) vectorial fields under strong focusing. This will allow the coupling of incident light to the nano-object to be controlled, opening new perspectives in, e.g., the characterization of molecular orientations and tunable nonlinear effects. The 3D focal fields depend on proper balance between the transverse and longitudinal field components, which depend on the polarization distribution of the incident beam before focusing. In the context of nonlinear effects, such opportunities have been demonstrated for radially and azimuthally polarized incident beams [1] and Hermite Gaussian HG10 beams [2]. Here, we take a significant step further by experimentally demonstrating that spatially phase-shaped incident beams can drive second-harmonic generation (SHG) from a single nanostructure in a controlled way.
Original languageEnglish
Title of host publicationEuropean Quantum Electronics Conference, EQEC 2015
Publication statusPublished - 21 Jul 2014
MoE publication typeA4 Article in a conference publication
EventEuropean Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference - Munich, Germany
Duration: 21 Jun 201525 Jun 2015

Publication series

NameOptics InfoBase Conference Papers

Conference

ConferenceEuropean Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference
Abbreviated titleCLEO/Europe-EQEC
CountryGermany
CityMunich
Period21/06/201525/06/2015

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  • Cite this

    Turquet, L., Bautista, G., Karvonen, L., Dhaka, V., Chen, Y., Jiang, H., ... Kauranen, M. (2014). Tunable nonlinear effects through focused spatially phase-shaped beams. In European Quantum Electronics Conference, EQEC 2015 [EG_P_11] (Optics InfoBase Conference Papers).