We present the direct laser fabrication of planar defect layers in three-dimensional chalcogenide glass basedchiral composites derived from the gyroid photonic crystal. We show that via the incorporation of a twist defect, an a-chiral defect mode resonance peak can be inserted within the highly circularly dichroic photonic band-gap of the 4-srs chiral composite.

© 2013 Optical Society of America

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