电磁诱导负折射现象是光与物质相互作用中表现出来的一种奇特的非线性效应,对其形成机理及非线性特性的研究具有重要的理论意义和巨大的潜在应用价值.建立了微波驱动下的四能级系统模型,研究了系统的介电常数和磁导率随系统参数的变化规律.由于本能级系统中存在一个可调谐耦合场,它同时与2个光学跃迁发生作用,研究结果表明,固定耦合场的拉比频率,通过改变它的频率失谐量可以得到系统的负折射率区域.
[1] 郑军, 刘正东, 曾福华, 方慧娟. 倒Y形四能级原子系统电磁诱导的左手效应 [J]. 物理学报 2008.
[2] VESELAGO V G. The electrodynamics of substances with simultaneously negative values of and [J]. Soviet Physics Uspekhi 1968, 10(04).
[3] Smith DR., Vier DC., Nemat-Nasser SC., Schultz S., Padilla WJ.. Composite medium with simultaneously negative permeability and permittivity [J]. Physical review letters 2000, 18(18).
[4] SHELBY R A, SMITH D R, SCHULTZ S. Experimental verification of a negative index of refraction [J]. Science 2001, 292.
[5] Notomi M.. Theory of light propagation in strongly modulated photonic crystals: Refractionlike behavior in the vicinity of the photonic band gap [J]. Physical Review.B.Condensed Matter 2000, 16(16).
[6] PARIMI P V, LU W T, VODO P. Photonic crystals:Imaging by flat lens using negative refraction [J]. Nature 2003, 426.
[7] Oktel MO, Mustecaplioglu OE. Electromagnetically induced left-handedness in a dense gas of three-level atoms [J]. Physical Review, A 2004, 5(5).
[8] Thommen Q, Mandel P. Electromagnetically induced left handedness in optically excited four-level atomic media [J]. Physical review letters 2006, 5(5).
[9] Zhang HJ, Niu YP, Gong SQ. Electromagnetically induced negative refractive index in a V-type four-level atomic system [J]. Physics Letters, A 2007, 5/6(5/6).
[10] Nuo Ba, Jin-Wei Gao, Wei Fan, Da-Wei Wang, Qi-Rong Ma, Rong Wang, Jin-Hui Wu. Electromagnetically induced negative refraction in an atomic system with spontaneously generated coherence [J]. Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter 2008, 22(22).
