2008/07/17 by Huabing Wang, H. B. Wang, Stefan Guénon +11 · 2 citations
Engineering · Physics and Astronomy · #Physics of Superconductivity and Magnetism #Semiconductor Quantum Structures and Devices #Terahertz technology and applications #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.102.017006
6 pages, 5 figures, supplementary information included
arxiv created 2008/07/17 · openalex publication_date 2009/01/09 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Recently, it has been shown that large stacks of intrinsic Josephson junctions in Bi2Sr2CaCu2O8 emit synchronous THz radiation, the synchronization presumably triggered by a cavity resonance. To investigate this effect we use low temperature scanning laser microscopy to image electric field distributions. We verify the appearance of cavity modes at low bias and in the high input-power regime we find that standing-wave patterns are created through interactions with a hot spot, possibly pointing to a new mode of generating synchronized radiation in intrinsic Josephson junction stacks.