Prof. Leonid S. Kuzmin Profile

Prof. Leonid S. Kuzmin

Professor at Chalmers Univ of Technology

SPIE Involvement:

Author

Publications (13)

Proceedings Article | 9 July 2018 Paper

Next generation sub-millimetre wave focal plane array coupling concepts: an ESA TRP project to develop multichroic focal plane pixels for future CMB polarisation experiments

N. Trappe, M. Bucher, P. de Bernardis, J. Delabrouille, P. Deo, M. De Petris, S. Doherty, A. Ghribi, M. Gradziel, L. Kuzmin, B. Maffei, S. Masi, J. A. Murphy, F. Noviello, C. O'Sullivan, L. Pagano, F. Piacentini, M. Piat, G. Pisano, M. Robinson, R. Stompor, A. Tartari, A. Traini, M. van der Vorst, P. Verhoeve, C. Zhu

Proceedings Volume 10708, 107082H (2018) https://doi.org/10.1117/12.2313480

KEYWORDS: Antennas, Polarization, Sensors, Telescopes, Staring arrays, Manufacturing, Prototyping, Cryogenics, Bolometers, Optical filters

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Proceedings Article | 19 July 2016 Paper

Multichroic bandpass seashell antenna with cold-electron bolometers for CMB measurements

Leonid Kuzmin, Alexander Chiginev

Proceedings Volume 9914, 99141U (2016) https://doi.org/10.1117/12.2232895

KEYWORDS: Polarization, Antennas, Bolometers, Polarization, Space operations, Capacitance, Beam shaping, Metals, Physics, Electronic filtering, Signal attenuation

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Proceedings Article | 19 July 2016 Paper

Next generation sub-millimeter wave focal plane array coupling concepts: an ESA TRP project to develop multichroic focal plane pixels for future CMB polarization experiments

N. Trappe, M. Bucher, P. De Bernardis, J. Delabrouille, P. Deo, M. DePetris, S. Doherty, A. Ghribi, M. Gradziel, L. Kuzmin, B. Maffei, S. Mahashabde, S. Masi, J. Murphy, F. Noviello, C. O'Sullivan, L. Pagano, F. Piacentini, M. Piat, G. Pisano, M. Robinson, R. Stompor, A. Tartari, M. van der Vorst, P. Verhoeve

Proceedings Volume 9914, 991412 (2016) https://doi.org/10.1117/12.2231267

KEYWORDS: Sensors, Antennas, Staring arrays, Prototyping, Polarization, Signal detection, Manufacturing, Telescopes, Telescope design, Optics manufacturing

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Proceedings Article | 23 July 2014 Paper

Cold-electron bolometers for future mm and sub-mm sky surveys

Maria Salatino, Paolo de Bernardis, Sumedh Mahashabde, Leonid Kuzmin, Silvia Masi

Proceedings Volume 9153, 91530A (2014) https://doi.org/10.1117/12.2056744

KEYWORDS: X-rays, Sensors, Photons, X-ray sources, Optical testing, Particles, Bolometers, Black bodies, Compton scattering, Signal detection

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Proceedings Article | 15 July 2010 Paper

Finline-integrated cold electron bolometer

Ernst Otto, Mikhail Tarasov, Paul Grimes, Natalia Kaurova, Hannes Kuusisto, Leonid Kuzmin, Ghassan Yassin

Proceedings Volume 7741, 77411A (2010) https://doi.org/10.1117/12.858263

KEYWORDS: Bolometers, Fabrication, Sensors, Waveguides, Optical testing, Resistance, Photomasks, Superconductors, Temperature metrology, Metals

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Proceedings Article | 19 July 2008 Paper

A parallel/series array of superconducting cold-electron bolometers with SIS' tunnel junctions

Leonid Kuzmin

Proceedings Volume 7020, 702018 (2008) https://doi.org/10.1117/12.789681

KEYWORDS: Bolometers, Field effect transistors, Superconductors, Polarization, Capacitance, Antennas, Amplifiers, Waveguides, Telescopes, Sensors

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Proceedings Article | 27 June 2006 Paper

Investigation of planar switches for large format CMB polarization instruments

Paul Grimes, Ghassan Yassin, Leonid Kuzmin, Phillip Mauskopf, Ernst Otto, Michael Jones, Chris North

Proceedings Volume 6275, 627525 (2006) https://doi.org/10.1117/12.671151

KEYWORDS: Switches, Superconductors, Microelectromechanical systems, Phase shifts, Circuit switching, Niobium, Inductance, Waveguides, Polarization, Bridges

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Proceedings Article | 8 December 2004 Paper

Terahertz transmission spectroscopy by Josephson oscillator and cold-electron bolometer

Mikhail Tarasov, Leonid Kuzmin, Evgueni Stepantsov, I. Agulo, A. Kalabukhov, A. Kidiyarova-Shevchenko, Tord Claeson

Proceedings Volume 5619, (2004) https://doi.org/10.1117/12.578038

KEYWORDS: Bolometers, Terahertz radiation, Oscillators, Sensors, Superconductors, Antennas, Spectroscopy, Cryogenics, Metals, Terahertz spectroscopy

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Proceedings Article | 8 October 2004 Paper

Ultimate cold-electron bolometer with strong electrothermal feedback

Leonid Kuzmin

Proceedings Volume 5498, (2004) https://doi.org/10.1117/12.554317

KEYWORDS: Bolometers, Superconductors, Metals, Sensors, Quantization, Phonons, Quantum efficiency, Antennas, Aluminum, Terahertz radiation

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Proceedings Article | 17 February 2003 Paper

Capacitively coupled hot-electron nanobolometer with SIN tunnel junctions

Leonid Kuzmin, M. Fominsky, A. Kalabukhov, D. Golubev, M. Tarasov

Proceedings Volume 4855, (2003) https://doi.org/10.1117/12.459193

KEYWORDS: Bolometers, Antennas, Electrons, Transformers, Temperature metrology, Superconductors, Black bodies, Metals, Mirrors, Aluminum

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A capacitively coupled hot-electron nanobolometer (CC-HEB) is the simplest and most effective antenna-coupled bolometer. The bolometer consists of a small absorber connected to the superconducting antenna by tunnel junctions. The tunnel junctions used for high-frequency coupling also give perfect thermal isolation of hot electrons in the small volume of the absorber. The same tunnel junctions are used for temperature measurements and electron cooling. This bolometer does not suffer from the frequency limitations in the submillimeter range due to the high potential barrier of the tunnel junctions as does the microbolometer with Andreev mirrors (A-HEB), which is limited by the superconducting gap. Theoretical analyses show that the two-junction configuration more than doubles the sensitivity of the bolometer in current-biased mode compared to the single-junction configuration used for A-HEB. Another important advantage of CC-HEB is its simple two-layer technology for sample fabrication. Samples were fabricated with an absorber made of a bilayer of Cr and Al to match the impedance of the antenna. Electrodes were made of Al and tunnel junctions were formed over the Al oxide layer. The coupling capacitances of the tunnel junctions, C ≈ 20 fF, in combination with the inductance of the 10 μm absorber create a bandpass filter with a central frequency around 300 GHz. Bolometers are integrated with log-periodic and double-dipole planar antennas made of Au. The temperature response of bolometer structures was measured at temperatures down to 256 mK. In our experiment we observed dV/dT=1.3 mV/K, corresponding to responsivity S=0.2.10⁹ V/W. For amplifier noise V_na=3nV/Hz^1/2at 1 kHz the estimated total noise equivalent power is NEP=1.5.10^-17 W/Hz^1/2. The intrinsic bolometer self noise V_nbol=0.5 nV/Hz^1/2 corresponds to NEP=3.10^-18 W/Hz^1/2. For microwave evaluation of bolometer sensitivity we used a black body radiation source comprising a thin NiCr stimulator placed on the cold plate of cryostat in front of a CC-HEB attached to an extended hemisphere sapphire lens. This measurements were consistent with estimates based on the dc responsivity of the bolometer.