2005/04/21 by Nicholas X. Fang, Hyesog Lee, Cheng Sun +2 · 22 citations
Business, Management and Accounting · Computer Science · Engineering · Materials Science · Physics and Astronomy · #Blockchain Technology in Education and Learning #Decision Support System Applications #Edcuational Technology Systems #Metamaterials and Metasurfaces Applications #Photonic Crystals and Applications #Plasmonic and Surface Plasmon Research
paper · doi:10.1126/science.1108759
openalex publication_date 2005/06/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/04/28
Recent theory has predicted a superlens that is capable of producing sub-diffraction-limited images. This superlens would allow the recovery of evanescent waves in an image via the excitation of surface plasmons. Using silver as a natural optical superlens, we demonstrated sub-diffraction-limited imaging with 60-nanometer half-pitch resolution, or one-sixth of the illumination wavelength. By proper design of the working wavelength and the thickness of silver that allows access to a broad spectrum of subwavelength features, we also showed that arbitrary nanostructures can be imaged with good fidelity. The optical superlens promises exciting avenues to nanoscale optical imaging and ultrasmall optoelectronic devices.