Tarhan I I, Zinkin M P, Watson G H
Opt Lett. 1995 Jul 15;20(14):1571-3. doi: 10.1364/ol.20.001571.
Under suitable conditions polystyrene microsphere colloids form photonic crystals capable of diffracting visible light, analogous to x-ray diffraction from atomic crystal planes. The lattice spacings of these crystals can be tailored to satisfy the Bragg condition along a certain direction for a particular desired wavelength. A modified Mach-Zehnder interferometer has been developed for accurately measuring relative phase shifts of light propagating in photonic crystals to determine the dispersion resulting from photonic band structure near the band edges.
在合适的条件下，聚苯乙烯微球胶体形成能够衍射可见光的光子晶体，类似于原子晶体平面的X射线衍射。这些晶体的晶格间距可以调整，以满足沿特定方向对特定所需波长的布拉格条件。已经开发出一种改进的马赫-曾德尔干涉仪，用于精确测量在光子晶体中传播的光的相对相移，以确定带边附近光子带结构产生的色散。
