Manipulating light flow with one-dimensional photonic crystals of an electromagnetically induced transparency medium

作者：Ye, Yu Qian; Shen, Jian Qi; Jin, Yi^*

来源：Applied Physics A, 2008, 93(2): 505-509.

DOI：10.1007/s00339-008-4850-2

• PROPAGATION

The band structures and equifrequency contours of one-dimensional photonic crystals (PCs), which consist of an electromagnetically induced transparency (EIT) medium and a common dielectric medium, can be dramatically changed by tuning the coupling field intensity (or coupling Rabi frequency, CRF) of the EIT medium. It is found that for a probe light at a fixed frequency, either positive or negative refraction in the EIT PC can be realized with a proper CRF. The behavior of a Gaussian beam (probe light) obliquely incident on such an EIT PC slab is simulated numerically. The probe light beam transmitted from the slab can be shifted transversely in a large range, and negative refraction enhances this effect. The present scenario can be applied in some areas such as quantum optical and photonic device designs.

• 出版日期2008-11
• 单位浙江大学