Abstract
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).
Highlights
We predict the existence of surface waves in layered superconductors in the THz frequency range, below the Josephson plasma frequency !J
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
We prove that surface Josephson plasma waves can propagate along the surface between the superconductor and the vacuum in a wide frequency range below !J
Summary
Frontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama, 351-0198, Japan. We predict the existence of surface waves in layered superconductors in the THz frequency range, below the Josephson plasma frequency !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). We derive the dispersion relation for these waves and propose ways to excite these We show that these surface waves play an important role in the absorption and reflection of electromagnetic waves, including their resonance dependence on the incident angle.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.