Abstract
We demonstrate nonlinear microscopy of oriented nanowires using excitation beams with binary phase modulation. A simple and intuitive optical scheme comprising a spatial light modulator gives us the possibility to control the phase across an incident Hermite-Gaussian beam of order (1,0) (HG10 mode). This technique allows us to gradually vary the spatial distribution of the longitudinal electric fields in the focal volume, as demonstrated by second-harmonic generation from vertically-aligned GaAs nanowires. These results open new opportunities for the full control of polarization in the focal volume to enhance light interaction with nanostructured materials.
Original language | English |
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Pages (from-to) | 10441-10448 |
Number of pages | 8 |
Journal | Optics Express |
Volume | 25 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1 May 2017 |
Publication type | A1 Journal article-refereed |
Publication forum classification
- Publication forum level 2
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics