DOI: 10.1063/1.337519. Frequency dependence of quasiparticle mixers

Frequency dependence of quasiparticle mixers

10.1063/1.337519

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

An analysis of the frequency dependence of superconductor-insulator-normal (SIN) and superconductor-insulator-superconductor (SIS) quasiparticle mixers is presented. Power-law expressions for conversion loss and mixer shot-noise temperature for the double-sideband SIN mixer are derived from the Tucker theory for the case of a source conductance which is small compared to the conductance of the junction. For an ideal SIN tunnel junction at T=0 the mixer conversion efficiency is shown to decrease approximately linearly with frequency up to f=Δ/h. From f=Δ/h to 2Δ/h the conversion efficiency remains approximately constant, while above f=2Δ/h it rolls off as the inverse square of the frequency. Expressions for the shot-noise contribution to the mixer noise temperature are also derived. At frequencies up to f=Δ/h the noise temperature rises as the square root of the frequency. From f=Δ/h to f=2Δ/h the noise temperature of the mixer increases linearly with frequency, whereas above f=2Δ/h it rises as the cube of the frequency. Conversion efficiency and noise temperature are also calculated numerically for the SIN mixer. Good agreement is found between the frequency dependencies calculated analytically in the limit of small local oscillator power and the numerical calculations for optimal pumping. The frequency dependence of the nonideal SIS junction is also analyzed, and shown to yield similar results, with the characteristic frequencies Δ/h and 2Δ/h for a SIN mixer transformed into 2Δ/h and 4Δ/h, respectively. Expressions also are derived for the saturation power as a function of frequency.

Bibliography

Danchi, W. C., & Sutton, E. C. (1986). Frequency dependence of quasiparticle mixers. Journal of Applied Physics, 60(11), 3967â3977.

Authors 2

W. C. Danchi (first)
E. C. Sutton (additional)

References 14 Referenced 29

{'key': '2024020405405361500_r1', 'first-page': '1234', 'volume': 'QE-15', 'year': '1979', 'journal-title': 'IEEE J. Quantum Electron.'} / IEEE J. Quantum Electron. (1979)
10.1063/1.91513 / Appl. Phys. Lett. (1980)
10.1063/1.331123 / J. Appl. Phys. (1982)
10.1063/1.329923 / J. Appl. Phys. (1982)
{'key': '2024020405405361500_r5', 'first-page': '677', 'volume': 'MAG-17', 'year': '1981', 'journal-title': 'IEEE Trans. Magn.'} / IEEE Trans. Magn. (1981)
{'key': '2024020405405361500_r6', 'first-page': '605', 'volume': 'MAG-19', 'year': '1983', 'journal-title': 'IEEE Trans. Magn.'} / IEEE Trans. Magn. (1983)
10.1063/1.93685 / Appl. Phys. Lett. (1982)
10.1063/1.93885 / Appl. Phys. Lett. (1983)
10.1103/PhysRev.129.647 / Phys. Rev. (1963)
{'key': '2024020405405361500_r10', 'first-page': '589', 'volume': 'MTT-31', 'year': '1983', 'journal-title': 'IEEE Trans. Microwave Theory Tech.'} / IEEE Trans. Microwave Theory Tech. (1983)
10.1007/BF01011947 / Int. J. Infra. Millimeter Waves (1985)
10.1103/RevModPhys.57.1055 / Rev. Mod. Phys. (1985)
{'key': '2024020405405361500_r13', 'first-page': '62', 'volume': '126B', 'year': '1984', 'journal-title': 'Physica'} / Physica (1984)
{'key': '2024020405405361500_r14', 'first-page': '110', 'volume': 'MAG-21', 'year': '1985', 'journal-title': 'IEEE Trans. Magn.'} / IEEE Trans. Magn. (1985)

Dates

Type	When
Created	23 years ago (July 26, 2002, 8:53 a.m.)
Deposited	1 year, 6 months ago (Feb. 4, 2024, 12:41 a.m.)
Indexed	1 month ago (July 22, 2025, 7:04 a.m.)
Issued	38 years, 8 months ago (Dec. 1, 1986)
Published	38 years, 8 months ago (Dec. 1, 1986)
Published Print	38 years, 8 months ago (Dec. 1, 1986)

Funders 0

None

BibTeX

@article{Danchi_1986, title={Frequency dependence of quasiparticle mixers}, volume={60}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.337519}, DOI={10.1063/1.337519}, number={11}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Danchi, W. C. and Sutton, E. C.}, year={1986}, month=dec, pages={3967–3977} }

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