Surface-Crystallized Glass Microsphere Cavity

80× Enhanced Nonlinearity

A surface-crystallized Ba2TiSi2O8 layer on the microsphere cavity boosts second harmonic generation by 80 times over non-resonant samples and enables broadband and cascaded frequency conversion.

Chen, Jianhao · Xiongjian, Huang · Yang, Dandan · Yantong, Li · Jiachang, Wu · Yu, Huakang · Liu, Xiaofeng · Qiu, Jianrong · Yang, Zhongmin · Dong, Guoping

Advanced Materials 2024

Specifications

Ultra-wideband SHG response

{'zh': '1600', 'en': '1600'} nm

Advantages

SHG enhancement 80× (vs non-resonant sample)

Cascaded sum frequency generation enhanced by two orders of magnitude