Demonstration of nanoimprinted hyperlens array for high-throughput sub-diffraction imaging

Minsueop Byun, Dasol Lee, Minkyung Kim, Yangdoo Kim, Kwan Kim, Jong G. Ok, Junsuk Rho, Heon Lee

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Overcoming the resolution limit of conventional optics is regarded as the most important issue in optical imaging science and technology. Although hyperlenses, super-resolution imaging devices based on highly anisotropic dispersion relations that allow the access of high-wavevector components, have recently achieved far-field sub-diffraction imaging in real-time, the previously demonstrated devices have suffered from the extreme difficulties of both the fabrication process and the non-artificial objects placement. This results in restrictions on the practical applications of the hyperlens devices. While implementing large-scale hyperlens arrays in conventional microscopy is desirable to solve such issues, it has not been feasible to fabricate such large-scale hyperlens array with the previously used nanofabrication methods. Here, we suggest a scalable and reliable fabrication process of a large-scale hyperlens device based on direct pattern transfer techniques. We fabricate a 5 cm × 5 cm size hyperlenses array and experimentally demonstrate that it can resolve sub-diffraction features down to 160 nm under 410 nm wavelength visible light. The array-based hyperlens device will provide a simple solution for much more practical far-field and real-time super-resolution imaging which can be widely used in optics, biology, medical science, nanotechnology and other closely related interdisciplinary fields.

Original languageEnglish
Article number46314
JournalScientific reports
Volume7
DOIs
Publication statusPublished - 2017 Apr 10

ASJC Scopus subject areas

  • General

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