<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Christopher M. Dodson</style></author><author><style face="normal" font="default" size="100%">Jonathan A. Kurvits</style></author><author><style face="normal" font="default" size="100%">Dongfang Li</style></author><author><style face="normal" font="default" size="100%">Rashid Zia</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Wide-Angle Energy-Momentum Spectroscopy</style></title><secondary-title><style face="normal" font="default" size="100%">Opt. Lett.</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Emission</style></keyword><keyword><style  face="normal" font="default" size="100%">Materials and process characterization</style></keyword><keyword><style  face="normal" font="default" size="100%">Rare-earth-doped materials</style></keyword><keyword><style  face="normal" font="default" size="100%">Transition-metal-doped materials</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2014/07/01</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://ol.osa.org/abstract.cfm?URI=ol-39-13-3927</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">39</style></volume><pages><style face="normal" font="default" size="100%">3927–3930</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Light emission is defined by its distribution in energy, momentum, and polarization. Here, we demonstrate a method that resolves these distributions by means of wide-angle energy-momentum spectroscopy. Specifically, we image the back focal plane of a microscope objective through a Wollaston prism to obtain polarized Fourier-space momentum distributions, and disperse these two-dimensional radiation patterns through an imaging spectrograph without an entrance slit. The resulting measurements represent a convolution of individual radiation patterns at adjacent wavelengths, which can be readily deconvolved using any well-defined basis for light emission. As an illustrative example, we use this technique with the multipole basis to quantify the intrinsic emission rates for electric and magnetic dipole transitions in europium-doped yttrium oxide (Eu3$+$:Y2O3) and chromium-doped magnesium oxide (Cr3$+$:MgO). Once extracted, these rates allow us to reconstruct the full, polarized, two-dimensional radiation patterns at each wavelength.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Christopher M. Dodson</style></author><author><style face="normal" font="default" size="100%">Rashid Zia</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Magnetic dipole and electric quadrupole transitions in the trivalent lanthanide series: Calculated emission rates and oscillator strengths</style></title><secondary-title><style face="normal" font="default" size="100%">Physical Review B</style></secondary-title><short-title><style face="normal" font="default" size="100%">Phys. Rev. B</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2013/09/05</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://link.aps.org/doi/10.1103/PhysRevB.86.125102</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">86</style></volume><pages><style face="normal" font="default" size="100%">125102</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Given growing interest in optical-frequency magnetic dipole transitions, we use intermediate coupling calculations to identify strong magnetic dipole emission lines that are well suited for experimental study. The energy levels for all trivalent lanthanide ions in the $4f^n$ configuration are calculated using a detailed free ion Hamiltonian, including electrostatic and spin-orbit terms as well as two-body, three-body, spin-spin, spin-other-orbit, and electrostatically correlated spin-orbit interactions. These free ion energy levels and eigenstates are then used to calculate the oscillator strengths for all ground-state magnetic dipole absorption lines and the spontaneous emission rates for all magnetic dipole emission lines including transitions between excited states. A large number of strong magnetic dipole transitions are predicted throughout the visible and near-infrared spectrum, including many at longer wavelengths that would be ideal for experimental investigation of magnetic light-matter interactions with optical metamaterials and plasmonic antennas.</style></abstract><issue><style face="normal" font="default" size="100%">12</style></issue><section><style face="normal" font="default" size="100%">125102</style></section></record></records></xml>