⚡ 本页包含 AI 生成的分析内容，仅供参考
本文提出了一种200GHz、200像素的二维近场成像仪，利用毫米波谐振器阵列的近场特性实现亚波长高分辨率成像，适用于生物医学应用。解决了传统远场成像受衍射极限限制的问题，实现了高灵敏度的样品检测与表征。
Near fields, unencumbered by the restrictions imposed by diffraction limits, can be leveraged in high-resolution sub-wavelength imaging systems [1]. Utilizing the near-fields generated by arrays of mmWave and THz resonators can be a compelling candidate for realizing such systems. On the one hand, by increasing the frequency of operation, the resonators’ physical footprint shrinks, enhancing the imaging resolution. On the other hand, their highly localized and easily perturbable EM-fields and narrow-band nature can potentially bring about high SNR detection and characterization of samples as small as single cells [2]. These potentials, however, have never been simultaneously realized due to reasons such as: 1) The challenges in the generation and the detection of mmWave and THz signals have limited previous efforts to a single-source and/or single-detector per pixel architectures [1-4], wherein the imaging
Ali Ameri, Jun-Chau Chien, Ali Niknejad
University of California, Berkeley, CA