Fast measurement of photonic stop bands by back focal plane imaging
Fast measurement of photonic stop bands by back focal plane imaging
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DOI：
10.1103/physrevb.87.165438
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发表时间：
2013-04
影响因子：
3.7
通讯作者：
Rebecca Wagner;F. Cichos
中科院分区：
文献类型：
--
作者：
Rebecca Wagner;F. Cichos
Back focal plane imaging microscopy of the autofluorescence of a colloidal photonic crystal at fixed wavelength is used to visualize photonic stop bands. Emission angles of up to ${74}^{\ensuremath{\circ}}$ against the crystals surface normal are detected. Structure and orientation of the crystal lattice, quality of the ordering, and the influence of defects on the optical properties can be probed at high spatial resolution. Exemplary results reveal domains with four-, six- and threefold symmetry, where the latter dominates, as expected for fcc lattices.
