2005/08/30 by Sergey Savel’ev, Sergey Savel'ev, Valery Yampol'skii +2 · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Josephson effect #Optics #Physics #Physics of Superconductivity and Magnetism #Plasma #Plasma oscillation #Quantum and electron transport phenomena #Quantum mechanics #Specular reflection #Superconductivity #Surface wave #Terahertz radiation #Waves in plasmas #cond-mat.mtrl-sci #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.95.187002
4 pages, 2 figures
arxiv created 2005/08/30 · openalex publication_date 2005/10/26 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We predict the existence of surface waves in layered superconductors in the THz frequency range, below the Josephson plasma frequency omega J. This wave propagates along the vacuum-superconductor interface and dampens in both transverse directions out of the surface (i.e., towards the superconductor and towards the vacuum). This is the first prediction of propagating surface waves in any superconductor. These predicted surface Josephson plasma waves are important for different phenomena, including the complete suppression of the specular reflection from a sample (Wood's anomalies) and a huge enhancement of the wave absorption (which can be used as a THz detector).