Stimulated Raman amplification and lasing in silicon photonic band gap nanocavities

The concept and design of L5 photonic band gap nanocavities in two-dimensional (2D) photonic crystal (PhCs) slabs for enhancement of stimulated Raman amplification and lasing in monolithic silicon is suggested for the first time. Specific high quality factor (Q) and small modal volume nanocavities are designed which supports the required pump–Stokes modal spacing in silicon, with ultra-low lasing thresholds.