The transition from a flat solid-liquid interface to a skeletal shape during BaB2O4(BBO) single crystal growth in Li2B4O7 flux is observed in real time by an op
Some compound lattices in photonic crystals with large complete photonic band gaps, such as the diamond structure and the two-dimensional hexagonal compound str
Using a Tm3+-doped double-cladding silica fibre, we produce a maximum cw 2.2 W output at approximately 2μm. The highest achieved slope efficiency is 29.3% resp