Grey spatial solitons due to two-photon photorefractive effect
张宇, 侯春风, 孙秀冬
Grey spatial solitons due to two-photon photorefractive effect
Zhang Yu(张宇), Hou Chun-Feng(侯春风), and Sun Xiu-Dong(孙秀冬)
中国物理B . 2007, (1): 159 -164 .  DOI: 10.1088/1009-1963/16/1/028