Subwavelength resolution from multilayered structure (Conference Presentation)

Bo Han Cheng, Yi Jun Jen, Wei Chih Liu, Shan Wen Lin, Yung Chiang Lan, Din Ping Tsai

研究成果: Conference contribution

摘要

Breaking optical diffraction limit is one of the most important issues needed to be overcome for the demand of high-density optoelectronic components. Here, a multilayered structure which consists of alternating semiconductor and dielectric layers for breaking optical diffraction limitation at THz frequency region are proposed and analyzed. We numerically demonstrate that such multilayered structure not only can act as a hyperbolic metamaterial but also a birefringence material via the control of the external temperature (or magnetic field). A practical approach is provided to control all the diffraction signals toward a specific direction by using transfer matrix method and effective medium theory. Numerical calculations and computer simulation (based on finite element method, FEM) are carried out, which agree well with each other. The temperature (or magnetic field) parameter can be tuned to create an effective material with nearly flat isofrequency feature to transfer (project) all the k-space signals excited from the object to be resolved to the image plane. Furthermore, this multilayered structure can resolve subwavelength structures at various incident THz light sources simultaneously. In addition, the resolution power for a fixed operating frequency also can be tuned by only changing the magnitude of external magnetic field. Such a device provides a practical route for multi-functional material, photolithography and real-time super-resolution image.

原文English
主出版物標題Nanostructured Thin Films IX
編輯Tom G. Mackay, Akhlesh Lakhtakia, Motofumi Suzuki
發行者SPIE
ISBN(電子)9781510602496
DOIs
出版狀態Published - 2016
事件Nanostructured Thin Films IX - San Diego, United States
持續時間: 2016 八月 302016 九月 1

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
9929
ISSN(列印)0277-786X
ISSN(電子)1996-756X

Other

OtherNanostructured Thin Films IX
國家United States
城市San Diego
期間16-08-3016-09-01

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • 引用此

    Cheng, B. H., Jen, Y. J., Liu, W. C., Lin, S. W., Lan, Y. C., & Tsai, D. P. (2016). Subwavelength resolution from multilayered structure (Conference Presentation). 於 T. G. Mackay, A. Lakhtakia, & M. Suzuki (編輯), Nanostructured Thin Films IX [99290H] (Proceedings of SPIE - The International Society for Optical Engineering; 卷 9929). SPIE. https://doi.org/10.1117/12.2237791