Enhancement of second-harmonic generation from silicon nitride with gold gratings
Research output: Contribution to journal › Article › Scientific › peer-review
|Number of pages||6|
|Publication status||Published - 1 Nov 2015|
|Publication type||A1 Journal article-refereed|
We report strong enhancement of second-harmonic generation in a hybrid nanostructure with gold gratings embedded in a silicon nitride film. Compared to a flat silicon nitride film, the enhancement factor can be as large as 102 to 103 for transverse magnetic and electric polarizations, respectively in good agreement with numerical results calculated using finite element method. For both polarizations, the enhancement arises from a resonance between the waveguide modes and grating.
- Diffraction gratings, Harmonic generation and mixing, Subwavelength structures