1. National Renewable Energy Laboratory, MS 3216, 1617 Cole Boulevard, Golden, Colorado 80401-3393, b Department of Chemistry, 80 St. George Street, Institute for Optical Sciences, and Centre for Quantum Information and Quantum Control, University of Toronto, Toronto, Ontario M5S 3H6 Canada, c Theoretical Division, Center for Nonlinear Studies (CNLS) and Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, d Department of Applied Physics, Columbia...