FIELD: physics.
SUBSTANCE: device contains an active element based on aluminium nitride. The active element is made in the form of a waveguide with air clads, the waveguiding layer of which is made of at least one pair of alternating layers: an intrinsic conductance aluminium nitride layer (1) (100-1400 nm in thickness) and a layer (2) of material with a metallic conductivity of 1- 5 nm.
EFFECT: increasing the efficiency of generation of the second harmonic of optical radiation.
3 cl, 4 dwg
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