APPLICATION OF NONLINEAR CRYSTAL OF LITHIUM TRIBORATH (LBO) FOR THE PHASE-CONSISTENT GENERATION OF RADIATION OF THE TEREGERZ RANGE Russian patent published in 2017 - IPC G02F1/35 

FIELD: physics.

SUBSTANCE: nonlinear anisotropic lithium triborate crystal LiB₃O₅ (LBO) are used as an active medium for generation of terahertz radiation of 0.3-10 THz (1000-30 mcm) by ensuring that phase-matching conditions are met when generating the difference frequency of laser radiation operating in the region of maximum transparency of 0.155-3.2 mcm when three-frequency interactions are realized In the main XZ plane, the selection of the corresponding emission wavelengths of the first and second pump sources, and the angular positioning of the crystal in accordance with the results of calculations for the dispersion equations

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EFFECT: providing the possibility of obtaining radiation generation in an important spectral range, from the point of view of practical applications.

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