Broadly Tunable Subterahertz Emission from Internal Branches of the Current-Voltage Characteristics of Superconducting Bi2Sr2CaCu2O8+δ Single Crystals

Please use this identifier to cite or link to this item: http://hdl.handle.net/2241/116831

Title:	Broadly Tunable Subterahertz Emission from Internal Branches of the Current-Voltage Characteristics of Superconducting Bi2Sr2CaCu2O8+δ Single Crystals
Authors:	Tsujimoto, Manabu Yamamoto, Takashi Delfanazari, Kaveh Nakayama, Ryo Kitamura, Takeo Sawamura, Masashi Kashiwagi, Takanari Minami, Hidetoshi Tachiki, Masashi Kadowaki, Kazuo Klemm, Richard A. 柏木, 隆成南, 英俊門脇, 和男
Issue Date:	Mar-2012
Publisher:	American Physical Society
Journal Title:	Physical review letters
Volume:	108
Issue:	10
Start Page:	107006
DOI:	10.1103/PhysRevLett.108.107006
PMID:	22463446
Abstract:	Continuous, coherent subterahertz radiation arises when a dc voltage is applied across a stack of the many intrinsic Josephson junctions in a Bi2Sr2CaCu2O8+δ single crystal. The active junctions produce an equal number of I-V characteristic branches. Each branch radiates at a slightly tunable frequency obeying the Josephson relation. The overall output is broadly tunable and nearly independent of heating effects and internal cavity frequencies. Amplification by a surrounding external cavity to allow for the development of a useful high-power source is proposed.
URI:	http://hdl.handle.net/2241/116831
Rights:	© 2012 American Physical Society
Text Version:	publisher
Appears in Collections:	柏木隆成 (Kashiwagi Takanari) 南英俊 (Minami Hidetoshi) 門脇和男 (Kadowaki Kazuo) Physical review letters

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