TY - JOUR AU - Lu Deng AU - Chengjie Zhu AU - Edward Hagley C2 - Physical Review A DA - 2013-08-28 DO - https://doi.org/10.1103/PhysRevA.88.023854 LA - en M1 - 88 PB - Physical Review A PY - 2013 TI - Linear and nonlinear Faraday rotations of light polarization in a four-level active-Raman-gain medium ER -