Broadly tunable, high-power terahertz radiation up to 73 K from a stand-alone Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+δ} mesa

Broadly tunable, high-power terahertz radiation up to 73 K from a stand-alone Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+δ} mesa

High-power, continuous, broadly tunable THz radiation from 0.29 to 1.06 THz, was obtained from the outer current-voltage characteristic (IVC) branch of a single stand-alone mesa of the high-transition temperature T{sub c} superconductor Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+δ}. The particular metalli...

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Veröffentlicht in:Applied physics letters 2014-11, Vol.105 (20)
Hauptverfasser: Kitamura, T., Watanabe, C., Ishida, K., Sekimoto, S., Asanuma, K., Yasui, T., Nakade, K., Shibano, Y., Saiwai, Y., Kashiwagi, T., Minami, H., Kadowaki, K., Division of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Yamamoto, T., Tsujimoto, M., Klemm, R. A.
Format: Artikel
Sprache:eng
Schlagworte:
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
COPPER OXIDES
GHZ RANGE 100-1000
HIGH-TC SUPERCONDUCTORS
STRONTIUM COMPOUNDS
THERMAL DIFFUSIVITY
THZ RANGE 01-100
TRANSITION TEMPERATURE
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Zusammenfassung:High-power, continuous, broadly tunable THz radiation from 0.29 to 1.06 THz, was obtained from the outer current-voltage characteristic (IVC) branch of a single stand-alone mesa of the high-transition temperature T{sub c} superconductor Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+δ}. The particular metallic film structures placed both beneath and atop the mesas resulted in more efficient heat dissipation, higher allowed applied dc voltages, larger IVC loops, wider emission temperature ranges, and much broader emission frequency tunability than obtained previously.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4902336