We experimentally study the ac Stark splitting in D2 line of cold 87 Rb atoms. The frequency span between the Autler-Townes doublets is obviously larger than th
Strgight single-line defect optical waveguides in photonic crystal slabs are designed by the plane wave expansion method and fabricated into silicon-on-insulato
Arylpyrazoline microparticles dispersed in water are synthesized and their absorption spectra are compared with those in solution. It is found that the absorban
Nanocombs with a disc cap structure of ZnO have been synthesized on si substrates by using pure Zinc powders as the source materials based on a vapour-phase tra