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  Non-linear crystal Lithium Triborate (LiB3O5 or LBO)
        Non-linear optical crystal Lithium Triborate (LiB3O5 or LBO) is attractive by a set of unique features: wide transparency range from VUV to IR, high optical damage threshold, high effective non-linear coefficients and non-critical phase matching availability, very small walk-off. LBO boules are grown with an improved high temperature flux method.
      LBO has band edges at 0.16 and 3.3 µm. Its useful transmission range (<5%/cm)is 0.21 to 2.3 µm. However, if higher absorption is acceptable, LBO compliments BBO by allowing deeper UV mixing. It also allows temperature-controllable non-critical phase matching (NCPM) for nominal 1.0-1.3 µm, Type I SHG. LBO also provides room temperature, quasi-NCPM (angle tune while maintaining =90°) for Type II SHG(0.8-1.1 µm) and THG(0.95-1.2 µm), a unique capability attributable , in part, to its biaxiality.
      LBO's lower birefringence limits its UV phase matching to certain combinations of longer wavelength radiation, but it possesses significantly larger angular acceptance bandwidths, reducing the beam quality requirements for source lasers.

APPLICATIONS:
    • SHG from high power lasers: Nd:YAG, Ti:Sapphire (650 - 1100 nm), Alexandrite (700 - 800 nm) and Copper-vapor (580 nm)
    • THG of YAG, Ti:Sapphire, Alexandrite lasers
    • Tunable solid-state lasers using UV (308, 355 nm), visible or IR (1064 nm) as the pump in OPO process
    • Phase atching cut off: at fundamental 554 nm for SHG, at 794 nm for THG, down to 160 nm for SFM
    • Autocorrelation measurements of ultrashort optical pulses

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