|Thesis & Accreditation|
|Friday, March 07th, 2014 at 11:00|
|Room: D102 - Institut Galilée|
|Department of Physics, Chuo University |
Higher order interactions such as electric and magnetic quadrupole moments can be of interest in optical near-field because these transitions are sensitive to field inhomogeneity. Especially, the interaction between a light field and an atomic system with multipole transitions depends explicitly on the polarization vector and the wave vector of the light.
We experimentally demonstrated an attenuated total reflection spectroscopy in an electric quadrupole transition of cesium atoms. The experimental results are in good agreement with the calculations using the wave-vector dependent oscillator strength. Recently, we calculated excitation efficiencies of mutipole transitions in the effective field enhancement of optically near fields. The enhancement excitations can enlarge possilibities of novel applications using higher-order multipole transitions.
Higher-order interactions of atoms with optical near field