LBO crystal

 LBO crystal (Lithium triborate) is a non-linear optical material of choice for high power lasers with the following main features:

• High bulk damage threshold
• Small walk-off angle
• Possibility of a non-critically phase-matched SHG crystals
• High transparency in the UV, making it the best option for THG 355nm or THG 343nm
• SFM possibility for FHG 266nm