White-light photorefractive phase mask.
A volume photorefractive phase mask has been fabricated with incoherent white light from an incandescent source in LiNbO3:Fe self-defocusing photorefractive crystal for the first time, to our knowledge. It can guide and modulate a probe white light or a laser beam and can be used to transmit an incoherent dark image as the guided modes of the waveguides induced by white-light dark spatial solitons. This also proves the existence of photorefractive nonlinearity of white light.
Gao
Yuanmei
Y
The Key Lab of Advanced Technique and Fabrication for Weak-Light Nonlinear Photonics Materials, Ministry of Education, Department of Physics, Nankai University, Tianjin 300071, China.
Liu
Simin
S
Guo
Ru
R
Zhang
Xiaohua
X
Lu
Yi
Y