Coherent THz emission of Bi_2Sr_2CaCu_2O_8 intrinsic Josephson junction stacks in the hot spot regime

Abstract

We report on THz emission measurements and low temperature scanning laser imaging of Bi_2Sr_2CaCu_2O_8 intrinsic Josephson junction stacks. Coherent emission is observed at large dc input power, where a hot spot and a standing wave, formed in the "cold" part of the stack, coexist. By varying the hot spot size the cavity resonance frequency and the emitted radiation can be tuned. The linewidth of radiation is much smaller than expected from the quality factor of the cavity mode excited. Thus, an additional mechanism of synchronization seems to play a role, possibly arising from nonequilibrium processes at the hot spot edge.

4.1 pages, 5 figures

References in corpus (12)

• Terahertz Josephson plasma waves in layered superconductors: spectrum, generation, nonlinear, and quantum phenomena
• 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
• Resonant electromagnetic emission from intrinsic Josephson-junction stacks with laterally modulated Josephson critical current
• Phase dynamics of inductively coupled intrinsic Josephson junctions and terahertz electromagnetic radiation
• Mechanism of Terahertz Electromagnetic Wave Emission from Intrinsic Josephson Junctions
• Evidence for a Dual-Source Mechanism of THz Radiation from Rectangular Mesas of Single Crystalline \bm{$\mathrm{B}{\mathrm{i}}_2\mathrm{S}{\mathrm{r}}_2\mathrm{CaC}{\mathrm{u}}_2{\mathrm{O}}_{8+\delta }$} Intrinsic Josephson Junctions
• Nonlinear nonequilibrium quasiparticle relaxation in Josephson junctions
• Quantum cascade phenomenon in natural atomic superlattices formed in Bi2Sr2CaCu2O8 single crystals
• Cavity phenomena in mesas of cuprate high-$T_c$ superconductors under voltage bias
• Stabilization of in-phase fluxon state by geometrical confinement in small Bi-2212 mesa structures
• Stationary phase-kink states and dynamical phase transitions controlled by surface impedance in THz wave emission from intrinsic Josephson junctions

Cited by in corpus (41)

• Powerful terahertz emission from Bi2Sr2CaCu2O8+delta mesa arrays
• Broadly Tunable Sub-terahertz Emission from Internal Branches of the Current-voltage Characteristics of Superconducting Bi2Sr2CaCu2O8+d Single Crystals
• Tunable terahertz emission from Bi2Sr2CaCu2O8+δ mesa devices
• Interaction of hot spots and THz waves in Bi_2Sr_2CaCu_2O_8 intrinsic Josephson junction stacks of various geometry
• Unusual linewidth dependence of coherent THz emission measured from intrinsic Josephson junction stacks in the hot-spot regime
• Effect of thermal inhomogeneity for THz radiation from intrinsic Josephson junction stacks of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Hot-spot formation in stacks of intrinsic Josephson junctions in Bi2Sr2CaCu2O8
• THz emission from intrinsic Josephson junctions at zero magnetic field via breather auto-oscillations
• 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
• Direct imaging of hot spots in Bi_{2}Sr_{2}CaCu_{2}O_{8+δ} mesa terahertz sources
• Electrical Breakdown in a V2O3 device at the Insulator to Metal Transition
• Intense terahertz emission from intrinsic Josephson junctions by external heat control
• 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 waves during terahertz radiation from rectangular Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ mesas
• In-plane dissipation as a possible synchronization mechanism for terahertz radiation from intrinsic Josephson junctions of layered superconductors
• Cavity mode identification for coherent terahertz emission from a nearly square stack of intrinsic Josephson junctions
• 3D simulations of the electrothermal and THz emission properties of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_8$ intrinsic Josephson junction stacks
• Synchronization of One Dimensional Array of Point Josephson Junctions Coupled to a Common Load
• Mutually synchronized macroscopic Josephson oscillations demonstrated by polarization analysis of superconducting terahertz emitters
• Current Induced Hidden States in Josephson Junctions
• Bridging the Terahertz gap for chaotic sources with superconducting junctions
• Noise Effects on birhythmic Josephson Junction coupled to a Resonator
• Manifestation of Resonance-Related Chaos in Coupled Josephson Junctions
• Terahertz field control of interlayer transport modes in cuprate superconductors
• Optimal Condition for Strong Terahertz Radiation from Intrinsic 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
• The parity effect in Josephson junction arrays
• Variation of Longitudinal Plasma Wavelength under Irradiation and Double Resonance in Coupled Josephson Junctions
• Linewidth of the electromagnetic radiation from Josephson junctions near cavity resonances
• Wave functions for high-symmetry, thin microstrip antennas and two-dimensional quantum boxes
• Emission of Circularly Polarized Terahertz Wave from Inhomogeneous Intrinsic Josephson Junctions
• Terahertz emission from mutually synchronized standalone Bi2Sr2CaCu2O8+x intrinsic-Josephson-junction stacks
• Instability of flux flow and production of vortex-antivortex pairs by current-driven Josephson vortices in layered superconductors
• Polarization analysis of terahertz emission from Bi-2212 cross-whisker intrinsic Josephson junction and its refractive index
• Negative Differential Resistance due to Nonlinearities in Single and Stacked Josephson Junctions
• On-chip sensing of hotspots in superconducting terahertz emitters
• Strong polaritonic interaction between flux-flow and phonon resonances in Bi2Sr2CaCu2O8+x intrinsic Josephson junctions: Angular dependence and the alignment procedure
• Increasing THz Radiation Power and Monochromaticity Using Optically Induced Photonic Crystal in Layered Superconductors
• Possibility to enhance teraherz emission from intrinsic Josephson junction by external local heating