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Journal Articles

Free-space and polarization maintaining delivery of terahertz radiation from a quantum cascade laser in a dry dilution refrigerator

Open Access
M. T. Vaughan, W. Michailow, R. Xia, L. Li, M. Salih, H. E. Beere, D. A. Ritchie, E. H. Linfield, A. G. Davies, J. R. Freeman, J. E. Cunningham
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 96, 063901 (2025)
https://doi.org/10.1063/5.0250844
Published: June 2025
View articletitled, Free-space and polarization maintaining delivery of terahertz radiation from a quantum cascade laser in a dry dilution refrigerator
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Includes: Supplementary data
Journal Articles

Preserving Coulomb blockade in transport spectroscopy of quantum dots by dynamical tunnel barrier compensation

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V. Jangir, D. Shah, S. Samanta, S. Rastogi, H. E. Beere, D. A. Ritchie, K. Das Gupta, S. Mahapatra
Journal: Applied Physics Letters
Appl. Phys. Lett. 125, 263503 (2024)
https://doi.org/10.1063/5.0241328
Published: December 2024
View articletitled, Preserving Coulomb blockade in transport spectroscopy of quantum dots by dynamical tunnel barrier compensation
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Journal Articles

Single-electron pump with highly controllable plateaus

Editor’s PickOpen Access
H. Howe, M. Blumenthal, H. E. Beere, T. Mitchell, D. A. Ritchie, M. Pepper
Journal: Applied Physics Letters
Appl. Phys. Lett. 119, 153102 (2021)
https://doi.org/10.1063/5.0067428
Published: October 2021
View articletitled, Single-electron pump with highly controllable plateaus
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Includes: Supplementary data
Journal Articles

Superconductivity in AuNiGe Ohmic contacts to a GaAs-based high mobility two-dimensional electron gas

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C. B. Beauchamp, S. Dimitriadis, J. T. Nicholls, L. V. Levitin, A. J. Casey, P. See, G. Creeth, J. Waldie, I. Farrer, H. E. Beere, D. A. Ritchie
Journal: Applied Physics Letters
Appl. Phys. Lett. 117, 162104 (2020)
https://doi.org/10.1063/5.0028217
Published: October 2020
View articletitled, Superconductivity in AuNiGe Ohmic contacts to a GaAs-based high mobility two-dimensional electron gas
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Includes: Supplementary data
Journal Articles

Suspended two-dimensional electron gases in In0.75Ga0.25As quantum wells

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C. Chen, S. N. Holmes, I. Farrer, H. E. Beere, D. A. Ritchie
Journal: Applied Physics Letters
Appl. Phys. Lett. 116, 232106 (2020)
https://doi.org/10.1063/5.0013902
Published: June 2020
View articletitled, Suspended two-dimensional electron gases in In0.75Ga0.25As quantum wells
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Journal Articles

Line-defect photonic crystal terahertz quantum cascade laser

FeaturedOpen Access
A. Klimont, A. Ottomaniello, R. Degl’Innocenti, L. Masini, F. Bianco, Y. Wu, Y. D. Shah, Y. Ren, D. S. Jessop, A. Tredicucci, H. E. Beere, D. A. Ritchie
Journal: Journal of Applied Physics
J. Appl. Phys. 126, 153104 (2019)
https://doi.org/10.1063/1.5120025
Published: October 2019
View articletitled, Line-defect photonic crystal terahertz quantum cascade laser
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Journal Articles

Amplitude stabilization and active control of a terahertz quantum cascade laser with a graphene loaded split-ring-resonator array

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B. Wei, S. J. Kindness, N. W. Almond, R. Wallis, Y. Wu, Y. Ren, S. C. Shi, P. Braeuninger-Weimer, S. Hofmann, H. E. Beere, D. A. Ritchie, R. Degl'lnnocenti
Journal: Applied Physics Letters
Appl. Phys. Lett. 112, 201102 (2018)
https://doi.org/10.1063/1.5027687
Published: May 2018
View articletitled, Amplitude stabilization and active control of a terahertz quantum cascade laser with a graphene loaded split-ring-resonator array
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Includes: Supplementary data
Journal Articles

Graphene based plasmonic terahertz amplitude modulator operating above 100 MHz

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D. S. Jessop, S. J. Kindness, L. Xiao, P. Braeuninger-Weimer, H. Lin, Y. Ren, C. X. Ren, S. Hofmann, J. A. Zeitler, H. E. Beere, D. A. Ritchie, R. Degl'Innocenti
Journal: Applied Physics Letters
Appl. Phys. Lett. 108, 171101 (2016)
https://doi.org/10.1063/1.4947596
Published: April 2016
View articletitled, Graphene based plasmonic terahertz amplitude modulator operating above 100 MHz
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Includes: Supplementary data
Journal Articles

Switching between attractive and repulsive Coulomb-interaction-mediated drag in an ambipolar GaAs/AlGaAs bilayer device

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B. Zheng, A. F. Croxall, J. Waldie, K. Das Gupta, F. Sfigakis, I. Farrer, H. E. Beere, D. A. Ritchie
Journal: Applied Physics Letters
Appl. Phys. Lett. 108, 062102 (2016)
https://doi.org/10.1063/1.4941760
Published: February 2016
View articletitled, Switching between attractive and repulsive Coulomb-interaction-mediated drag in an ambipolar GaAs/AlGaAs bilayer device
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Journal Articles

Spatial mapping and statistical reproducibility of an array of 256 one-dimensional quantum wires

Open Access
H. Al-Taie, L. W. Smith, A. A. J. Lesage, P. See, J. P. Griffiths, H. E. Beere, G. A. C. Jones, D. A. Ritchie, M. J. Kelly, C. G. Smith
Journal: Journal of Applied Physics
J. Appl. Phys. 118, 075703 (2015)
https://doi.org/10.1063/1.4928615
Published: August 2015
View articletitled, Spatial mapping and statistical reproducibility of an array of 256 one-dimensional quantum wires
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Journal Articles

Band gaps of wurtzite ScxGa1−xN alloys

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H. C. L. Tsui, L. E. Goff, S. K. Rhode, S. Pereira, H. E. Beere, I. Farrer, C. A. Nicoll, D. A. Ritchie, M. A. Moram
Journal: Applied Physics Letters
Appl. Phys. Lett. 106, 132103 (2015)
https://doi.org/10.1063/1.4916679
Published: March 2015
View articletitled, Band gaps of wurtzite ScxGa1−xN alloys
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Journal Articles

Single mode terahertz quantum cascade amplifier

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Y. Ren, R. Wallis, Y. D. Shah, D. S. Jessop, R. Degl'Innocenti, A. Klimont, V. Kamboj, H. E. Beere, D. A. Ritchie
Journal: Applied Physics Letters
Appl. Phys. Lett. 105, 141102 (2014)
https://doi.org/10.1063/1.4897438
Published: October 2014
View articletitled, Single mode terahertz quantum cascade amplifier
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Journal Articles

Beyond modulation doping: Engineering a semiconductor to be ambipolar, or making an ON-OFF-ON transistor

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K. Das Gupta, A. F. Croxall, B. Zheng, F. Sfigakis, I. Farrer, C. A. Nicoll, H. E. Beere, D. A. Ritchie
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1591, 27–32 (2014)
https://doi.org/10.1063/1.4872477
Published: April 2014
View articletitled, Beyond modulation doping: Engineering a semiconductor to be ambipolar, or making an ON-OFF-ON transistor
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Journal Articles

Multiple lateral photo-Dember terahertz emitters illuminated by a cylindrical micro-lens array

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P. Gow, S. A. Berry, D. McBryde, M. E. Barnes, H. E. Beere, D. A. Ritchie, V. Apostolopoulos
Journal: Applied Physics Letters
Appl. Phys. Lett. 103, 252101 (2013)
https://doi.org/10.1063/1.4850576
Published: December 2013
View articletitled, Multiple lateral photo-Dember terahertz emitters illuminated by a cylindrical micro-lens array
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Journal Articles

Mode-locked terahertz quantum cascade laser by direct phase synchronization

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K. Maussang, J. Maysonnave, N. Jukam, J. R. Freeman, P. Cavalié, S. P. Khanna, E. H. Linfield, A. G. Davies, H. E. Beere, D. A. Ritchie, S. S. Dhillon, J. Tignon
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1566, 504–505 (2013)
https://doi.org/10.1063/1.4848506
Published: December 2013
View articletitled, Mode-locked terahertz quantum cascade laser by direct phase synchronization
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Journal Articles

Erratum: “Cryogenic on-chip multiplexer for the study of quantum transport in 256 split-gate devices” [Appl. Phys. Lett. 102 , 243102 (2013)]

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H. Al-Taie, L. W. Smith, B. Xu, P. See, J. P. Griffiths, H. E. Beere, G. A. C. Jones, D. A. Ritchie, M. J. Kelly, C. G. Smith
Journal: Applied Physics Letters
Appl. Phys. Lett. 103, 099901 (2013)
https://doi.org/10.1063/1.4819464
Published: August 2013
View articletitled, Erratum: “Cryogenic on-chip multiplexer for the study of quantum transport in 256 split-gate devices” [Appl. Phys. Lett. 102 , 243102 (2013)]
Open the PDF for Erratum: “Cryogenic on-chip multiplexer for the study of quantum transport in 256 split-gate devices” [Appl. Phys. Lett. 102 , 243102 (2013)] in another window
Journal Articles

Terahertz quartz enhanced photo-acoustic sensor

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S. Borri, P. Patimisco, A. Sampaolo, H. E. Beere, D. A. Ritchie, M. S. Vitiello, G. Scamarcio, V. Spagnolo
Journal: Applied Physics Letters
Appl. Phys. Lett. 103, 021105 (2013)
https://doi.org/10.1063/1.4812438
Published: July 2013
View articletitled, Terahertz quartz enhanced photo-acoustic sensor
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Journal Articles

Cryogenic on-chip multiplexer for the study of quantum transport in 256 split-gate devices

Open Access
H. Al-Taie, L. W. Smith, B. Xu, P. See, J. P. Griffiths, H. E. Beere, G. A. C. Jones, D. A. Ritchie, M. J. Kelly, C. G. Smith
Journal: Applied Physics Letters
Appl. Phys. Lett. 102, 243102 (2013)
https://doi.org/10.1063/1.4811376
Published: June 2013
View articletitled, Cryogenic on-chip multiplexer for the study of quantum transport in 256 split-gate devices
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Journal Articles

Electronically tunable aperiodic distributed feedback terahertz lasers

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O. P. Marshall, S. Chakraborty, Md. Khairuzzaman, T. Folland, A. Gholinia, H. E. Beere, D. A. Ritchie
Journal: Journal of Applied Physics
J. Appl. Phys. 113, 203103 (2013)
https://doi.org/10.1063/1.4807636
Published: May 2013
View articletitled, Electronically tunable aperiodic distributed feedback terahertz lasers
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Journal Articles

Ultra-shallow quantum dots in an undoped GaAs/AlGaAs two-dimensional electron gas

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W. Y. Mak, F. Sfigakis, K. Das Gupta, O. Klochan, H. E. Beere, I. Farrer, J. P. Griffiths, G. A. C. Jones, A. R. Hamilton, D. A. Ritchie
Journal: Applied Physics Letters
Appl. Phys. Lett. 102, 103507 (2013)
https://doi.org/10.1063/1.4795613
Published: March 2013
View articletitled, Ultra-shallow quantum dots in an undoped GaAs/AlGaAs two-dimensional electron gas
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