Superconductors and Complex Transition Metal Oxides for Tunable THz Plasmonic Metamaterials

Conference · Fri Jul 13 00:00:00 EDT 2012

OSTI ID:1046513

Singh, Ranjan ^[1]; Xiong, Jie ^[1]; Azad, Md A ^[1]; Yang, Hao ^[1]; Trugman, Stuart A ^[1]; Jia, Quanxi ^[1]; Taylor, Antoinette ^[1]; Chen, Houtong ^[1]

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1. Los Alamos National Laboratory

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.

• Research Organization: Los Alamos National Laboratory (LANL)
• Sponsoring Organization: DOE/LANL
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1046513
• Report Number(s): LA-UR-12-22992
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPLITUDES
HIGH-TC SUPERCONDUCTORS
OXIDES
RADIATIONS
STRONTIUM TITANATES
SUBSTRATES
SUPERCONDUCTORS
TRANSITION ELEMENTS