Electromagnetically Induced Self-Imaging in Four-Level Doppler Broadening Medium

Michael S. Scherman, O. S. Mishina, Pietro Lombardi +2 more

Azeem B. Mirza, Suneel Pratap Singh

Tianhui Qiu, Hongyang Ma, Chunhong Zheng +2 more

Chin‐Chun Tsai, Ming‐Tsung Lee, Ray-Yuan Chang

Chunfang Wang, Feng Wang, Li-Ru Yang

We show the influences of temperature on the self-imaging in the coherent atomic system which consists of four-level 87 Rb atoms. The different-direction self-imaging, the corresponding imaging quality, and the imaging contrast ratio in this Doppler broadening medium are studied. As a result, the imaging-position linearly increases with the temperature, while the quality of the self-imaging does not show clear connection with the temperature. Due to the weaker mutual interference in the higher temperature, the contrast ratios in the two directions increase. The interesting results are important and may have potential applications in imaging storage and processing.

Chunfang Wang, Jing Cheng, Shensheng Han

Under the condition of electromagnetically induced transparency, self-imaging in three-level Lambda-type atoms at normal temperature is studied. The influences of the temperature on the position of the self-imaging and the corresponding imaging quality are discussed in detail. Numerical results show that, with the increase of the temperature, the location of the self-imaging linearly moves away from the original object, and the self-imaging quality decreases.