TY - JOUR AU - Chengjie Zhu AU - Lu Deng AU - Edward Hagley C2 - Optics Letters DA - 2013-05-14 00:05:00 DO - https://doi.org/10.1364/OL.38.001718 LA - en M1 - 38 PB - Optics Letters PY - 2013 TI - Highly efficient counter-propagation-beams narrow-band ultraviolet frequency conversion in a quantum gas ER -