title: Detecting the trapping of small metal nanoparticles in the gap of nanoantennas with optical second harmonic generation.
abstract: The second harmonic generation from gold nanoparticles trapped into realistic and idealized gold nanoantennas is numerically investigated using a surface integral equations technique. It is observed that the presence of a nanoparticle in the nanoantenna gap dramatically modifies the second harmonic intensity scattered into the far-field. These results clearly demonstrate that second harmonic generation is a promising alternative to the conventional linear optical methods for the detection of trapping events at the nanoscale.
authors: Jérémy
authors: J
authors: Butet
authors: Andrea
authors: A
authors: Lovera
authors: Olivier J F
authors: OJ
authors: Martin