Design aspects of Bi₂Sr₂CaCu₂O_8+δ THz sources: optimization of thermal and radiative properties

Mikhail M. Krasnov, Natalia D. Novikova, Roger Cattaneo, Alexey A. Kalenyuk and Vladimir M. Krasnov

Beilstein J. Nanotechnol. 2021, 12, 1392–1403. https://doi.org/10.3762/bjnano.12.103

Cite the Following Article

Mikhail M. Krasnov, Natalia D. Novikova, Roger Cattaneo, Alexey A. Kalenyuk and Vladimir M. Krasnov

Beilstein J. Nanotechnol. 2021, 12, 1392–1403. https://doi.org/10.3762/bjnano.12.103

How to Cite

Krasnov, M. M.; Novikova, N. D.; Cattaneo, R.; Kalenyuk, A. A.; Krasnov, V. M. Beilstein J. Nanotechnol. 2021, 12, 1392–1403. doi:10.3762/bjnano.12.103

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TY  - JOUR
A1  - Krasnov, Mikhail M.
A1  - Novikova, Natalia D.
A1  - Cattaneo, Roger
A1  - Kalenyuk, Alexey A.
A1  - Krasnov, Vladimir M.
T1  - Design aspects of Bi2Sr2CaCu2O8+δ THz sources: optimization of thermal and radiative properties
JF  - Beilstein Journal of Nanotechnology
PY  - 2021///
VL  - 12
SP  - 1392
EP  - 1403
SN  - 2190-4286
DO  - 10.3762/bjnano.12.103
PB  - Beilstein-Institut
JA  - Beilstein J. Nanotechnol.
UR  - https://doi.org/10.3762/bjnano.12.103
KW  - high-temperature superconductivity
KW  - Josephson junctions
KW  - numerical modelling
KW  - terahertz sources
N2  - Impedance matching and heat management are important factors influencing the performance of terahertz sources. In this work we analyze thermal and radiative properties of such devices based on mesa structures of a layered high-temperature superconductor Bi2Sr2CaCu2O8+δ. Two types of devices are considered containing either a conventional large single crystal or a whisker. We perform numerical simulations for various geometrical configurations and parameters and make a comparison with experimental data for the two types of devices. It is demonstrated that the structure and the geometry of both the superconductor and the electrodes play important roles. In crystal-based devices an overlap between the crystal and the electrode leads to appearance of a large parasitic capacitance, which shunts terahertz emission and prevents impedance matching with open space. The overlap is avoided in whisker-based devices. Furthermore, the whisker and the electrodes form a turnstile (crossed-dipole) antenna facilitating good impedance matching. This leads to more than an order of magnitude enhancement of the radiation power efficiency in whisker-based, compared to crystal-based, devices. These results are in good agreement with presented experimental data.
ER  -

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Galin, M. A.; Shereshevsky, I. A.; Vdovicheva, N. K.; Kurin, V. V. Influence of spread of the Josephson junction parameters on the radiation characteristics of active Josephson antennas. Physica Scripta 2025, 100, 35549. doi:10.1088/1402-4896/adb3d5
Kikuchi, R.; Nakagawa, S.; Enomoto, Y.; Kuzumi, Y.; Yamada, S.; Maeshima, K.; Yamauchi, Y.; Minami, H.; Kashiwagi, T. Evaluation of the device characteristics of Bi2Sr2CaCu2O8+δ terahertz-wave emitters using wet-etching techniques. Journal of Applied Physics 2025, 137. doi:10.1063/5.0249557
Wieland, R.; Kizilaslan, O.; Kinev, N.; Dorsch, E.; Guénon, S.; Song, Z.; Wei, Z.; Wang, H.; Wu, P.; Koelle, D.; Koshelets, V. P.; Kleiner, R. Terahertz emission from mutually synchronized standalone Bi2Sr2CaCu2O8+x intrinsic-Josephson-junction stacks. Physical Review Applied 2024, 22. doi:10.1103/physrevapplied.22.044022
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Martynenko, I.; Kalenyuk, O.; Shapovalov, A.; Kondakova, H.; Shamaev, V.; Boliasova, O.; Zhitlukhina, O. Proximity Effect between a Two-Band Superconductor and a Ferromagnet. METALLOFIZIKA I NOVEISHIE TEKHNOLOGII 2024, 45, 1141–1150. doi:10.15407/mfint.45.10.1141
Yu, M.; Wang, Z.; Wang, B.; Shi, J.; Liang, T.-L.; Jiang, R.; Zheng, K.; Xu, W. Multi-source excited travelling-wave bowtie antenna based on a meander series of YBCO bicrystal Josephson junctions. Frontiers in Physics 2023, 11. doi:10.3389/fphy.2023.1228794
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Cattaneo, R.; Galin, M. A.; Krasnov, V. M. Observation of collective excitation of surface plasmon resonances in large Josephson junction arrays. Beilstein journal of nanotechnology 2022, 13, 1578–1588. doi:10.3762/bjnano.13.132
Kalenyuk, A.; Shapovalov, A. Characteristics of Josephson Nb/Al/AlO$_{x}$/Nb Contacts Formed by Simplified Method. METALLOFIZIKA I NOVEISHIE TEKHNOLOGII 2022, 44, 1239–1253. doi:10.15407/mfint.44.10.1239
Yu, M.; Shi, J.; Liang, T.-L.; Xu, Z.; Chen, Z. N.; Xu, W.; Wang, H.; Chen, J.; Wu, P. Multi-source Excited Bowtie Loaded Meander Antenna for Series Superconducting Josephson Junction THz Mixer. Journal of Infrared, Millimeter, and Terahertz Waves 2022, 43, 791–805. doi:10.1007/s10762-022-00873-3
Feodoritova, O. B.; Novikova, N. D.; Krasnov, M. M.; Zhukov, V. T. Multigrid method for numerical modelling of high temperature superconductors. Mathematica Montisnigri 2022, 53, 72–89. doi:10.20948/mathmontis-2022-53-7

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