title: Super-thin Mikaelian's lens of small index as a beam compressor with an extremely high compression ratio.
abstract: Based on a focusing Mikaelian's lens with small refraction index (0<n<<1), an optical device is designed as a super-thin optical beam compressor (e.g., thickness = 3λ0) with an extremely high beam compression ratio (more than 19:1). This device can also be used as a beam collimator or a cylindrical-to-plane wave convertor with a much higher transmissivity than a zero-index metamaterial slab. The output beam shows good directionality in both near field and far field. A metamaterial structure is also designed to realize this device and verify its performance with finite element method (FEM).
authors.affiliation: Centre for Optical and Electromagnetic Research, Zhejiang Provincial Key Laboratory for Sensing Technologies, JORCEP, East Building #5, Zijingang Campus, Zhejiang University, Hangzhou 310058, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Sun
authors.forename: Yun
authors.initials: Y
authors.lastname: Gui Ma
authors.forename: Xiaochen
authors.initials: X
authors.lastname: Ge
authors.forename: Sailing
authors.initials: S
authors.lastname: He
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007909:Lenses; D008027:Light; D008904:Miniaturization; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation