Electromagnetic wave lenses and reflectors designed with transformation electromagnetics

Feng, Yijun; Lin, Yu-Wei; Xiong, Shuai; Xu, Xiaofei

doi:10.1109/ursigass.2014.6929145

Cited by 1 publication

(1 citation statement)

References 15 publications

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“…However, to overcome this problem, some scientists proposed to use metamaterials to alter in a controlled way the morphological distribution of lens materials with the aim to manipulate the electromagnetic field of the propagating light. These are known as super GRIN lenses, in which the electromagnetic beam is compressed in order to propagate within the lens, achieving fine focus better than conventional GRIN lenses [ 75 ].…”

Section: Iols Materials Marketmentioning

confidence: 99%

Current State of the Art and Next Generation of Materials for a Customized IntraOcular Lens according to a Patient-Specific Eye Power

et al. 2023

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Intraocular lenses (IOLs) are commonly implanted after surgical removal of a cataractous lens. A variety of IOL materials are currently available, including collamer, hydrophobic acrylic, hydrophilic acrylic, PHEMA copolymer, polymethylmethacrylate (PMMA), and silicone. High-quality polymers with distinct physical and optical properties for IOL manufacturing and in line with the highest quality standards on the market have evolved to encompass medical needs. Each of them and their packaging show unique advantages and disadvantages. Here, we highlight the evolution of polymeric materials and mainly the current state of the art of the unique properties of some polymeric systems used for IOL design, identifying current limitations for future improvements. We investigate the characteristics of the next generation of IOL materials, which must satisfy biocompatibility requirements and have tuneable refractive index to create patient-specific eye power, preventing formation of posterior capsular opacification.

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Section: Iols Materials Marketmentioning

confidence: 99%