Project supported by the National Key Research and Development Program of China (Grant No. 2020YFA0710100);the National Natural Science Foundation of China (Grant Nos. 92050102 and 11874311);the Fundamental Research Funds for the Central Universities (Grant Nos. 20720220033 and 20720200074)。
Super-resolution imaging with superlens has been one of the fundamental research topics. Unfortunately, the resolution of superlens is inevitably restrained by material loss. To address the problem, we introduce the s...
the financial support from the National Key R&D Program of China(2022YFA1404300);National Natural Science Foundation of China(91850204,92250304,62288101).
The refractive-lens technique has been well developed over a long period of evolution,offering powerful imaging functionalities,such as microscopes,telescopes,and spectroscopes.Nevertheless,the ever-growing requiremen...
support by the National Natural Science Foundation of China(52075410,51975483,51622509);the Fundamental Research Funds for the Central Universities(31020190504001);the 111 Project(B13044),the Dean Fund(2019GDYJY05);the Collaborative Innov-ation Center Project of Shaanxi Provincial Department of Education(20JY031);the Natural Science Basic Research Plan in Shaanxi Province of China(2018JQ6012);the Hong Kong Polytechnic University through the“Life Science Research”project(1-ZVH9),and the City University of Hong Kong(9610456).
The imaging capability of conventional lenses is mainly limited by the diffraction of light,and the so-called superlens has been developed allowing the recovery of evanescent waves in the focal plane.However,the remar...
In this Letter,a Gabor superlens with variable focus is presen ted.This configuration uses tunable liquid lenses in the third microlens array of the Gabor superlens.By applying voltage,the radius of curvature of the m...
supported by National Key Basic Research Special Foundation of China(Grant No.2011CB922002);National Natural Science Foundation of China;National Center for Nanoscience and Technology of China
Photonic crystal (PC) offers a powerful means to mold the flow of light and manipulate light- matter interaction at subwavelength scale. In this paper, we review some recent theoretical and experimental work in our ...
Project supported by the National Basic Research Program of China(Grant No.2011CB301801);the National Natural Science Foundation of China(Grant Nos.10904099 and 11174211)
A new phase-correction method in a realistic loss superlens imaging system is theoretically predicted. The image resolution is enhanced using the near-field active phase-correction method. Resolvable separation betwee...
We theoretically demonstrate the imaging properties of a complex two-dimensional(2D) face-centered square lattice photonic crystal(PC) made from germanium cylinders in air background. The finitedifference time-domain(...
Project supported by the Shanghai Committee of Science and Technology of China (Grant No. 0852nm06600);the National Natural Science Foundation of China(Grant No. 60808014)
A far-field optical lithography is developed in this paper. By designing the structure of a far-field optical superlens, lithographical resolution can be improved by using a conventional UV light source. The finite di...
the National Basic Research Program under Grant No.2004CB719801
This work has demonstrated that with silver superlens, the resolution of conventional optical lithography can be improved significantly. Experimental and simulative results are given to verify the facts that the resol...
Supported by National Natural Science Foundation of China (Grant No. 10404036) the Major State Basic Research Development Program of China (Grant Nos. 2001CB610405, 2001CB610402 and 2004CB719804)
Recent progress made in research on negative refraction in two-dimensional photonic crystals is reviewed. Special attentions are paid to the research results of our group. We explore the underlying mechanism governing...