Efficient second-harmonic generation in silicon nitride resonant waveguide gratings
Ning, Tingyin; Pietarinen, Henna; Hyvärinen, Outi; Kumar, Ravi; Kaplas, Tommi; Kauranen, Martti; Genty, Goery (2012)
Ning, Tingyin
Pietarinen, Henna
Hyvärinen, Outi
Kumar, Ravi
Kaplas, Tommi
Kauranen, Martti
Genty, Goery
2012
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tty-201212121368
https://urn.fi/URN:NBN:fi:tty-201212121368
Kuvaus
Peer reviewed
Tiivistelmä
We demonstrate a thousand-fold enhancement of second-harmonic generation in an all-dielectric silicon nitride (SiN) resonant waveguide grating compared to a flat SiN film. The strong second-harmonic output measured at 532 nm results from the combination of the enhanced local fields in the nanostructure and the large second-order susceptibility of SiN. The second-harmonic conversion efficiency in the resonant structure is found to be of the order of 10−8, which is significantly larger than that typically observed from plasmonic metal nanostructures.
Kokoelmat
- TUNICRIS-julkaisut [16977]