Multicolor manipulation of negative refraction in a three-level Λ atomic system is theoretically investigated. Based on multicolor coherence, the negative refractive index can be obtained with reduced absorption. The refractive index can also be controlled by changing the sum of the phases of the sidebands in the trichromatic driving fields. By adjusting the sum phase, the refractive index can be varied between negative and positive in two different frequency bands. Furthermore, the frequency band corresponding to the negative refractive index is widened by increasing the intensity and the frequency difference of the trichromatic field.
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机译:Possible Negative Regulatory Effects of Antibiotic Production in a Hetrologous System by Sare_4854, a Novel Member of Streptomyces Antibiotic Regulatory Protein Family (SARP) from a Marine Microorganism Salinispora arenicola CNH643 DSM 44819AU Shu, Xiao Zhang, Wei Yu, Jinlong Wu, Shaowen Ma, Yanling Zhu, Minzhe Xia, Sisi Xia, Shichao Zhang, Hao Li, Aiying (aiyli@126.com) Qi, Chao (qichao@mail.ccnu.edu.cn)