Electrothermal behavior and terahertz emission properties of a planar array of two Bi2Sr2CaCu2O8+δintrinsic Josephson junction stacks

Gross, B.; Rudau, F.; Kinev, Nickolay V.; Tsujimoto, Manabu; Yuan, Jie; Huang, Y.; Ji, Min; Zhou, Xingfei; An, D. Y.; Ishii, Akira; Wu, Peiheng; Hatano, Takeshi; Koelle, D.; Wang, H B; Koshelets, V. P.; Kleiner, R.

doi:10.1088/0953-2048/28/5/055004

Cited by 9 publications

(5 citation statements)

References 60 publications

(71 reference statements)

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“…17,18) Furthermore, the experimental current-voltage characteristics of parallelly-connected two IJJ stacks have been numerically reproduced by taking the temperature increase for parallely-connected two RCSJ circuits into account. 19) In this letter, we suggest an electric circuit model describing a JPE with two IJJ stacks, the superconducting single-crystal substrate connecting them, and the measurement circuit. Experimental radiation intensities from a JPE are compared with high-frequency dissipations of the LCR shunt then a deviation between its resonance frequency and the experimental radiation frequency is found.…”

mentioning

confidence: 99%

Circuit models of simultaneously biased intrinsic Josephson junction stacks for terahertz radiations in high-bias regime

Kobayashi

Hayama

Kakeya

2022

Appl. Phys. Express

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Experiment-based circuit models for Josephson plasma emitters (JPEs) made of cuprate superconductor Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$ single crystals are proposed. Introducing an LCR resonator shunting an RCSJ parallel circuit allows to reproduce experimental radiation intensity as a function of device voltage. Mismatch in the resonance frequencies of the total device and the LCR part is related to the wide-range tuning of the radiation frequency of JPE. It is found that coupling capacitances for simultaneously biased operations provide significant increases in radiation intensities, which have been reported as synchronized radiation from multiple mesas in the literature.

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mentioning

confidence: 99%

Circuit models of simultaneously biased intrinsic Josephson junction stacks for terahertz radiations in high-bias regime

Kobayashi

Hayama

Kakeya

2022

Appl. Phys. Express

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“…When different parts of a small stand-alone Bi2212 single crystal were used both as the emitter and as the detector, emission up to 11 THz was observed [17]. An array of three standalone rectangular mesas was reported to emit coherently with the combined P ≈ 0.61 mW [28], although an array of two rectangular mesas did not behave coherently [29], so the main concern for further development is the design of arrays to increase that number.…”

Section: Introductionmentioning

confidence: 99%

Wave functions for high-symmetry, thin microstrip antennas and two-dimensional quantum boxes

Rain,

Cai,

Baekey

et al. 2021

Preprint

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For a spinless quantum particle in a one-dimensional box or an electromagnetic wave in a onedimensional cavity, the respective Dirichlet and Neumann boundary conditions both lead to nondegenerate wave functions. However, in two spatial dimensions, the symmetry of the box or microstrip antenna is an important feature that has often been overlooked in the literature. In the high-symmetry cases of a disk, square, or equilateral triangle, the wave functions for each of those two boundary conditions are grouped into two distinct classes, which are one-and two-dimensional representations of the respective point groups, C∞v, C4v, and C3v. Here we present visualizations of representative wave functions for both boundary conditions and both one-and two-dimensional representations of those point groups. For the one-dimensional representations, color contour plots of the wave functions are presented. For the two-dimensional representations, the infinite degeneracies are presented as common nodal points and/or lines, the patterns of which are invariant under all operations of the respective point group. The wave functions with the Neumann boundary conditions have important consequences for the coherent terahertz emission from the intrinsic Josephson junctions in the high-temperature superconductor Bi2Sr2CaCu2O 8+δ : the enhancement of the output power from electromagnetic cavity resonances is only strong for wave functions that are not degenerate.

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“…For comparison, the tunability of a single RTD source is 5% at best [19]. Previous studies have shown that the thermal management of emitting sources is a key requirement for controlling their characteristics [20,21,22,23,24,25,26,27,28,29,30,31,32,33,34]. Previously, radiation above 1 THz was achieved by an improved cooling technique [27].…”

Section: Introductionmentioning

confidence: 99%

Engineering and characterization of a packaged high-T_csuperconducting terahertz source module

Tsujimoto

Doi

Kuwano

et al. 2017

Supercond. Sci. Technol.

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We present an effective engineering technique for compactly packaging high-T c superconducting continuous-wave terahertz source modules. A terahertzemitting device, which consists of stacks of intrinsic Josephson junctions in single crystalline Bi 2 Sr 2 CaCu 2 O 8+δ , bias electrodes, a collimating lens, and other components, is packaged into a single finger-sized assembly. The rigid and stable structure used for the packaging guarantees physical and chemical stability with good thermal contact, and provides reproducible characteristics with a high yield rate. The coherent terahertz waves can be emitted from the back side of the base crystal without significant screening. The intuitive results obtained from the numerical simulation are consistent with the observed thermal properties. The modules are easy to use, and thus intended for all users unfamiliar with superconducting electronic devices.

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Electrothermal behavior and terahertz emission properties of a planar array of two Bi₂Sr₂CaCu₂O_8+δintrinsic Josephson junction stacks

Abstract: We report on the investigation of the electrothermal behavior and the terahertz (THz) emission properties of two nearby Bi 2 Sr 2 CaCu 2 O δ + 8

Cited by 9 publications

References 60 publications

Circuit models of simultaneously biased intrinsic Josephson junction stacks for terahertz radiations in high-bias regime

Circuit models of simultaneously biased intrinsic Josephson junction stacks for terahertz radiations in high-bias regime

Wave functions for high-symmetry, thin microstrip antennas and two-dimensional quantum boxes

Engineering and characterization of a packaged high-T_csuperconducting terahertz source module

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Electrothermal behavior and terahertz emission properties of a planar array of two Bi2Sr2CaCu2O8+δintrinsic Josephson junction stacks

Abstract: We report on the investigation of the electrothermal behavior and the terahertz (THz) emission properties of two nearby Bi 2 Sr 2 CaCu 2 O δ + 8

Cited by 9 publications

References 60 publications

Circuit models of simultaneously biased intrinsic Josephson junction stacks for terahertz radiations in high-bias regime

Circuit models of simultaneously biased intrinsic Josephson junction stacks for terahertz radiations in high-bias regime

Wave functions for high-symmetry, thin microstrip antennas and two-dimensional quantum boxes

Engineering and characterization of a packaged high-Tcsuperconducting terahertz source module

Contact Info

Product

Resources

About

Electrothermal behavior and terahertz emission properties of a planar array of two Bi₂Sr₂CaCu₂O_8+δintrinsic Josephson junction stacks

Engineering and characterization of a packaged high-T_csuperconducting terahertz source module