Nonlinear imaging of nanostructures using beams with binary phase modulation
Turquet, Léo; Kakko, Joona Pekko; Jiang, Hua; Isotalo, Tero J.; Huhtio, Teppo; Niemi, Tapio; Kauppinen, Esko; Lipsanen, Harri; Kauranen, Martti; Bautista, Godofredo (2017-05-01)
Turquet, Léo
Kakko, Joona Pekko
Jiang, Hua
Isotalo, Tero J.
Huhtio, Teppo
Niemi, Tapio
Kauppinen, Esko
Lipsanen, Harri
Kauranen, Martti
Bautista, Godofredo
01.05.2017
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tty-201712152389
https://urn.fi/URN:NBN:fi:tty-201712152389
Kuvaus
Peer reviewed
Tiivistelmä
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.
Kokoelmat
- TUNICRIS-julkaisut [16726]