Effective generation of red-green-blue laser in a two-dimensional decagonal photonic superlattice

Collinear second harmonic generation of

Collinear second harmonic generation of 20 wavelengths in a single two-dimensional decagonal nonlinear photonic quasi-crystal

✍ Yan Sheng; Kaloian Koynov; Daozhong Zhang 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 489 KB

We report on the observation of quasi-phase matched collinear second harmonic generation (SHG) at 20 wavelengths in a two-dimensional nonlinear photonic quasi-crystal with decagonal lattice. We show that at some wavelengths the second harmonics are generated via standard quasi-phase matching, namely