摘要
Resolutions of degenerate four-wave mixing with forward and phase-conjugate configurations (FDFWM and PCDFWM) are investigated and compared theoretically and experimentally in hot rubidium (Rb) atomic vapor.The theoretical simulations indicate that PCDFWM is of much higher resolution than FDFWM.The resolution of PCDFWM is less dependent on Doppler broadening.The experimental results are in good agreement with the theoretical expectation.PCDFWM can resolve the hyperfine transitions and crossover resonances of 87 Rb which cannot be achieved by FDFWM.Additionally,with sample temperature increasing,the linewidth of FDFWM spectrum obviously broadens.In comparison,no obvious broadening can be observed in the PCDFWM spectrum.
作者
程雪梅
陈浩伟
王健
苗一珠
尹逊莉
任兆玉
白晋涛
CHENG Xue-Mei;CHEN Hao-Wei;WANG Jian;MIAO Yi-Zhu;YIN Xun-Li;REN Zhao-Yu;BAI Jin-Tao(National Key Laboratory of Photoelectric Technology and Functional Materials,National Photoelectric Technology and Functional Materials and Application of Science and Technology International Cooperation Center,Institute of Photonics&Photon-Technology,Northwest University,Xi’an 710069)
基金
Supported by the National Basic Research Program of China under Grant No 2010CB434811
the National Natural Science Foundation of China under Grant No 10874139
the Ph.D.Program Foundation of Ministry of Education of China under Grant No 200806970002
the Northwest University Innovation Fund for Postgraduate Students under Grant No 09YJC26.