Journal
OPTICS EXPRESS
Volume 19, Issue 8, Pages 7750-7755Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.007750
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Funding
- 973 Program [2007CB613200, 2006CB921700]
- Shanghai Science and Technology Committee [09PJ1402000, 08dj1400302]
- Shanghai Normal University [RE920, 307-A-3501-11-005005, DXL 902]
- NSFC
- Shanghai Municipal Natural Science Foundation [11ZR1426000]
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We report that a three-dimensional quasiordered photonic structure, found in the cuticles of beetle H. sexmaculata, can diffract light in a wrong way and its angular dispersion is about one order of magnitude larger than that of a conventional diffraction grating. A new diffraction type of photonic bandgap (from an anticrossing of longitudinal and transverse modes) and additional disorder effect are found to play important roles in this phenomenon. Mimicking the structure could lead to novel optical devices with ultralarge angular dispersion. (C) 2011 Optical Society of America
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