Superconductors and Complex Transition Metal Oxides for Tunable THz Plasmonic Metamaterials
The outline of this presentation are: (1) Motivation - Non-tunability of metal metamaterials; (2) Superconductors for temperature tunable metamaterials; (3) Ultrafast optical switching in superconductor metamaterials; (4) Controlling the conductivity with infrared pump beam; (5) Complex metal oxides as active substrates - Strontium Titanate; and (6) Conclusion. Conclusions are: (1) High Tc superconductors good for tunable and ultrafast metamaterials; (2) Large frequency and amplitude tunability in ultrathin superconductor films; (3) Such tunable properties cannot be accessed using metals; (4) Complex metal oxides can be used as active substrates - large tunability; (5) Complex oxides fail to address the issue of radiation losses in THz metamaterials.
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- Conference: ICYRAM 2012 ; 2012-07-01 - 2012-07-06 ; Singapore, Singapore
- Research Org:
- Los Alamos National Laboratory (LANL)
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- Country of Publication:
- United States
- 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 42 ENGINEERING; AMPLITUDES; HIGH-TC SUPERCONDUCTORS; OXIDES; RADIATIONS; STRONTIUM TITANATES; SUBSTRATES; SUPERCONDUCTORS; TRANSITION ELEMENTS
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