Lithium Tetraborate (Li2B4O7 or LTB) has attracted much attention as a newly developed single crystal which has potential application to surface acoustic wave (SAW) devices. It is characterized by a low-temperature coefficient of the delay time, high electro-mechanical coupling constant and large piezoelectric constant.

APPLICATIONS:
    • Harmonic generation (SHG, THG, 4HG, 5HG) of YAG lasers
    • High power ultraviolet light source based on SHG and SFH of the visible laser radiation
    • In BAW and SAW devices

Literature:
    • V. Petrov, R. Komatsu and T. Sugawara. Temperature tuned noncritical phase-matching in Li2B4O7 for generation of cw laser radiation at 244 nm. Electron. Lett. 35 (1999) 721-2
    • R. Komatsu, T. Sugawara, N. Watanabe, S. Uda and V. Petrov. Growth and UV nonlinear properties of optical-grade lithium tetraborate (Li2B4O7) crystals. The Review of Laser Engineering 27 (1999) 541-6
    • V. Petrov, F. Rotermund, F. Noack, R. Komatsu, T. Sugawara and S. Uda. Vacuum ultraviolet application of Li2B4O7 crystals: generation of 100 fs- pulses down to 170 nm. J. Appl. Phys. 84 (1998) 5887-92

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