Frequency-Resolved Reciprocal-Space Mapping of Visible Spontaneous Emission from 3D Photonic Crystals
- Author: A. Frölich, J. Fischer, C. Wolff, K. Busch, and M. Wegener
- Source: Adv. Optical Mater. 2, 849-853 (2014)
- Date: 25.06.2014
Information on propagating and evanescent Bloch modes as well as on remaining disorder is provided by experiments on titania woodpile photonic crystals with a complete three-dimensional photonic bandgap at visible wavelengths. Such frequency-resolved reciprocal-space mapping of visible spontaneous emission from 3D photonic crystals is analogous to angle-resolved photoemission spectroscopy (ARPES) on ordinary crystals.