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一个国际合作组研制成了第一个可以用光线来控制其特性的超材料.这种材料,由一些金属谐振器做成,这些谐振器包含有与光二极管耦合的电子学线路.可用于雷达和通信技术.超材料是大约10年前首次制成的,是一种人造的次波长结构,含有以异常方式对光和其他电磁波响应的微小的单元.例如,可以将一种超材料设计成具有负的折射系数,使得这种材料将光线偏转的方向与普通材料相反.具有这种特性的材料已用于制造能够把光聚焦到小于其波长的超透镜,使光学显微镜能够观察更小物体.这种透镜还可以用于制作电磁波“看不到的外衣”.
An International Cooperation Group developed the first metamaterial that can control its properties with light, made of metal resonators that contain electronic circuits that are coupled to a photodiode and are used in radars And communication technology, the first of its kind made about 10 years ago, is a man-made subwavelength structure that contains tiny cells that respond abnormally to light and other electromagnetic waves.For example, a metamaterial can be designed as Has a negative refractive index such that the material deflects the light in the opposite direction to ordinary materials.Materials with this property have been used to fabricate hyper lenses that can focus light to less than its wavelength so that the optical microscope can view smaller objects This lens can also be used to make electromagnetic waves “can not see the coat ”.