A 2-D photonic crystal based source of polarization entangled photon pairs with high nonlinear conversion efficiency and without walk-off compensation

作者：Xiao, Li^*; Wang, Yin; Zhang, Wei; Huang, Yidong; Peng, Jiangde

来源：Optics Communications, 2007, 272(2): 525-528.

DOI：10.1016/j.optcom.2006.12.002

• DOWN-CONVERSION

Spontaneous parametric down-conversion in 2-dimensional photonic crystal made of semiconductor material with large nonlinear susceptibility is proposed to generate entangled photon pairs with high nonlinear conversion efficiency. In particular, the walk-off between the down-converted photons with orthogonal polarization states can be minimized through appropriate structure parameter design, leading to elimination of compensation measures to mitigate labeling effect on polarization entangled photon pairs.

• 出版日期2007-4-15
• 单位清华大学