FIELD: physics.
SUBSTANCE: device contains an active element based on aluminium nitride. The active element is made of, at least, one pair of alternating layers: an intrinsic conductive aluminium nitride layer (1) having a thickness of 100-900 nm and a layer (2) of a material with a metal conductivity of 1-5 nm thick.
EFFECT: increasing the efficiency of generation of the second harmonic of optical radiation.
3 cl, 4 dwg
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