Title :
Giant enhancement of second-harmonic generation from sub-wavelength resonant waveguide grating
Author :
Saari, A. ; Genty, G. ; Siltanen, M. ; Karvinen, P. ; Vahimaa, P. ; Kuittinen, M. ; Kauranen, M.
Author_Institution :
Dept. of Phys., Tampere Univ. of Technol., Tampere, Finland
Abstract :
We demonstrate a resonant waveguide structure that enhances second-harmonic generation by a factor of at least 5500 compared to a flat reference surface in the same geometry. We further show that the structure diffracts second-harmonic radiation in four different directions.
Keywords :
arrayed waveguide gratings; integrated optics; optical films; optical harmonic generation; optical materials; silicon compounds; titanium compounds; SiO2-TiO2; optical coating; second-harmonic generation; second-harmonic radiation diffraction; subwavelength resonant waveguide grating; Diffraction; Diffraction gratings; Frequency conversion; Gratings; Optical surface waves; Surface treatment; Surface waves;
Conference_Titel :
Optical Communication (ECOC), 2010 36th European Conference and Exhibition on
Conference_Location :
Torino
Print_ISBN :
978-1-4244-8536-9
Electronic_ISBN :
978-1-4244-8534-5
DOI :
10.1109/ECOC.2010.5621480
