FIELD: physics.
SUBSTANCE: photonic crystal waveguide with a hexagonal shape comprises cladding and a hollow core in which a multilayer of capillaries is inserted. The period and diameter of channels of the multilayer of capillaries is close or much smaller than the radiation wavelength of the required spectral range. The diameter of capillaries of the cladding is always greater than the diameter of channels of the multilayer.
EFFECT: enabling selection of spectral components with a width smaller than 200 nm from optical radiation flux of a wideband source within the entire visible wavelength range.
2 cl, 10 dwg
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