Broadly Tunable Sub-terahertz Emission from Internal Branches of the Current-voltage Characteristics of Superconducting Bi2Sr2CaCu2O8+d Single Crystals

Abstract

Continuous, coherent sub-terahertz radiation arises when a dc voltage is applied across a stack of the many intrinsic Josephson junctions in a Bi2Sr2CaCu2O8+d single crystal. The active junctions produce an equal number of I-V characteristic branches. Each branch radiates at a slightly tunable frequency obeying the ac 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.

4 pages, 4 figures, accepted for publication in PRL

References in corpus (6)

• Hot spots and waves in Bi2Sr2CaCu2O8 intrinsic Josephson junction stacks -a study by Low Temperature Scanning Laser Microscopy
• Possible Dynamic States in Inductively Coupled Intrinsic Josephson Junctions of Layered High-$T_c$ Superconductors
• Tunable terahertz emission from Bi2Sr2CaCu2O8+δ mesa devices
• Mechanism of Terahertz Electromagnetic Wave Emission from Intrinsic Josephson Junctions
• Stability of dynamic coherent states in intrinsic Josephson-junction stacks near internal cavity resonance
• Cavity mode waves during terahertz radiation from rectangular Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ mesas

Cited by in corpus (22)

• Unusual linewidth dependence of coherent THz emission measured from intrinsic Josephson junction stacks in the hot-spot regime
• Hot-spot formation in stacks of intrinsic Josephson junctions in Bi2Sr2CaCu2O8
• Local SiC photoluminescence evidence of non-mutualistic hot spot formation and sub-THz coherent emission from a rectangular Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ mesa
• Thermal and electromagnetic properties of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_8$ intrinsic Josephson junction stacks studied via one-dimensional coupled sine-Gordon equations
• Cavity mode identification for coherent terahertz emission from a nearly square stack of intrinsic Josephson junctions
• In-plane dissipation as a possible synchronization mechanism for terahertz radiation from intrinsic Josephson junctions of layered superconductors
• 3D simulations of the electrothermal and THz emission properties of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_8$ intrinsic Josephson junction stacks
• Manifestation of Resonance-Related Chaos in Coupled Josephson Junctions
• Synchronization of Josephson oscillations in mesa array of BSCCO single crystal through the Josephson plasma waves in base crystal
• Control of Circularly Polarized THz Wave from Intrinsic Josephson Junctions by Local Heating
• Mutual synchronization of two stacks of intrinsic Josephson junctions in cuprate superconductors
• Variation of Longitudinal Plasma Wavelength under Irradiation and Double Resonance in Coupled Josephson Junctions
• "Quick and dirty" technology for fabrication of a single BiSrCaCuO mesas
• Linewidth of the electromagnetic radiation from Josephson junctions near cavity resonances
• Emission of Circularly Polarized Terahertz Wave from Inhomogeneous Intrinsic Josephson Junctions
• Wave functions for high-symmetry, thin microstrip antennas and two-dimensional quantum boxes
• On-chip sensing of hotspots in superconducting terahertz emitters
• Millimeter wave to terahertz compact and low-loss superconducting plasmonic waveguides for cryogenic integrated nano-photonics
• Computer Simulation of Electronic Device for Generation of Electric Oscillations by Negative Differential Conductivity of Supercooled Nanostructured Superconductors in Electric Field
• On-chip visible light communication-band metasurface modulators with niobium plasmonic nano-antenna arrays
• Direct laser micromachining of superconducting terahertz Josephson plasma emitters
• Increasing THz Radiation Power and Monochromaticity Using Optically Induced Photonic Crystal in Layered Superconductors