PHASE FLUCTUATIONS ON RAMAN-ENHANCED NONDEGENERATE FOUR-WAVE MIXING
Zhang Yan-peng (张彦鹏)a, Wu Hong-cai (吴洪才)a, Wang Peng-fei (王鹏飞)a, Li Chuang-she (李创社)a, Fu Pan-ming (傅盘铭)b
a Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China; b Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
Abstract We have employed phase-diffusion model to study the effects of laser field correlation on the Raman-enhanced nondegenerate four-wave mixing (RENFWM). The different roles of the field fluctuations have been pointed out. A time-delayed method has been proposed to suppress the thermal background. An enhancement of the ratio between the resonant and nonresonant RENFWM signal intensities was found as the time delay is increased when the laser has broadband linewidth. When the lasers have Gaussian line shape, we also present a second-order coherence function theory to elucidate the temporal asymmetry behavior of the RENFWM.
Received: 21 December 1999
Revised: 21 February 2000
Accepted manuscript online:
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
