“完美”透镜是Pendry教授等人在2000年通过理论分析与推导提出一种全新的成像概念。由于左手材料(人工媒质)具有负折射率和消逝波放大特性,电磁波源发出的消逝波傅里叶分量由传统媒质进入人工媒质后不仅相位会得到纠正而且其幅度也会得到有效放大。这使得物体的信息在像点处得到完美恢复,突破了衍射极限对传统透镜分辨率的限制,实现了超分 “Perfect ” lens is Professor Pendry and others in 2000 through theoretical analysis and deduction proposed a new concept of imaging. Since the left-handed material (artificial medium) has the properties of negative refractive index and evanescent wave amplification, the evanescent wave component of the evanescent wave emitted by the electromagnetic wave source can not only correct the phase but also amplify the amplitude effectively after the traditional medium enters the artificial medium. This allows the object’s information to be perfectly recovered at the image point, breaking through the diffraction limit’s limit on the resolution of conventional lenses and achieving super-resolution