Layered superconductors as negative-refractive-index metamaterials

A. L. Rakhmanov, V. A. Yampol’skii, J. A. Fan, Federico Capasso, and Franco Nori
Phys. Rev. B 81, 075101 – Published 1 February 2010

Abstract

We analyze the use of layered superconductors as strongly anisotropic metamaterials, which can possess negative-refractive-index in a wide frequency range. Superconductors are of particular interest because they have the potential to support low losses, which is critical for applications such as super-resolution imaging. We show that low-Tc (s-wave) superconductors can be used to construct layered heterostructures with low losses for TTc. However, the real part of their in-plane effective permittivity is very large, making coupling into the structure difficult. Moreover, even at low temperatures, layered high-Tc superconductors have a large in-plane normal conductivity, producing large losses (due to d-wave symmetry). Therefore, it is difficult to enhance the evanescent modes in either low-Tc or high-Tc superconductors.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 21 December 2009

DOI:https://doi.org/10.1103/PhysRevB.81.075101

©2010 American Physical Society

Authors & Affiliations

A. L. Rakhmanov1,2, V. A. Yampol’skii1,3, J. A. Fan4, Federico Capasso4, and Franco Nori1,5

  • 1Advanced Science Institute, The Institute of Physical and Chemical Research (RIKEN), Saitama 351-0198, Japan
  • 2Institute for Theoretical and Applied Electrodynamics, Russian Academy of Science, 125412 Moscow, Russia
  • 3A. Ya. Usikov Institute for Radiophysics and Electronics, Ukrainian Academy of Science, 61085 Kharkov, Ukraine
  • 4School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
  • 5Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 81, Iss. 7 — 15 February 2010

Reuse & Permissions
Access Options
Event
Physics Next Workshops
March 20, 2017

The American Physical Society is initiating a new series of international workshops. These Physics Next workshops will be aimed at fostering new and emerging areas of physics research, focusing on topics that straddle traditional subject boundaries and are starting to “emerge from the noise.”

The first workshop is titled “Physics Next: Materials Design and Discovery,” and will take place on May 15 -17, 2017. More information.

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×