Dipole limit in second-harmonic generation from arrays of gold nanoparticles
Czaplicki, Robert; Zdanowicz, Mariusz; Koskinen, Kalle; Lakkanen, Janne; Kuittinen, Markku; Kauranen, Martti (2011)
Czaplicki, Robert
Zdanowicz, Mariusz
Koskinen, Kalle
Lakkanen, Janne
Kuittinen, Markku
Kauranen, Martti
2011
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tty-201210191320
https://urn.fi/URN:NBN:fi:tty-201210191320
Kuvaus
Peer reviewed
Tiivistelmä
We present a multipolar tensor analysis of second-harmonic generation from arrays of noncentrosymmetric gold nanoparticles. In contrast to earlier results, where higher multipoles and symmetry-forbidden signals arising from sample defects play a significant role, the present results are completely dominated by symmetry-allowed electric-dipole tensor components. The result arises from significant improvement in sample quality, which suppresses the higher-multipole effects and enhances the overall response by an order of magnitude. The results are a prerequisite for metamaterials with controllable nonlinear properties.
Kokoelmat
- TUNICRIS-julkaisut [16977]