Juho Luomahaara

20102019
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Research Output 2010 2019

  • 12 Article
  • 3 Conference article in proceedings
  • 1 Dissertation
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Article
2019

Multiplexed readout of kinetic inductance bolometer arrays

Sipola, H., Luomahaara, J., Timofeev, A., Grönberg, L., Rautiainen, A., Luukanen, A. & Hassel, J., 2019, In : Review of Scientific Instruments. 90, 7, 074702.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Bolometers
bolometers
inductance
Inductance
readout
2018

Unshielded SQUID Sensors for Ultra-Low-Field Magnetic Resonance Imaging

Luomahaara, J., Kiviranta, M., Grönberg, L., Zevenhoven, K. & Laine, P., 8 Jan 2018, In : IEEE Transactions on Applied Superconductivity. 28, 4, 1600204.

Research output: Contribution to journalArticleScientificpeer-review

SQUIDs
magnetic resonance
sensors
Sensors
Magnetic resonance
2017
12 Citations (Scopus)

Optical and electrical characterization of a large kinetic inductance bolometer focal plane array

Timofeev, A., Luomahaara, J., Grönberg, L., Mäyrä, A., Sipola, H., Aikio, M., Metso, M., Vesterinen, V., Tappura, K., Ala-Laurinaho, J., Luukanen, A. & Hassel, J., 1 Mar 2017, In : IEEE Transactions on Terahertz Science and Technology. 7, 2, p. 218 - 224 7 p., 7811297.

Research output: Contribution to journalArticleScientificpeer-review

Bolometers
Focal plane arrays
bolometers
focal plane devices
inductance
2 Citations (Scopus)

Side-wall spacer passivated sub-μm Josephson junction fabrication process

Grönberg, L., Kiviranta, M., Vesterinen, V., Lehtinen, J., Simbierowicz, S., Luomahaara, J., Prunnila, M. & Hassel, J., 16 Nov 2017, In : Superconductor Science and Technology. 30, 12, 6 p., 125016.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Josephson junctions
spacers
Lithography
Niobium
Parametric amplifiers
2016
6 Citations (Scopus)

Influence of Substrate on Plasmon-Induced Absorption Enhancements

Tappura, K., Luomahaara, J., Haatainen, T., Hassel, J. & Vehmas, T., 2016, In : Plasmonics. 11, 2, p. 627-635

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Silicon
Thin films
Silicon solar cells
Substrates
Amorphous silicon
2014
17 Citations (Scopus)

Kinetic inductance magnetometer

Luomahaara, J., Vesterinen, V., Grönberg, L. & Hassel, J., 2014, In : Nature Communications. 5, 4872.

Research output: Contribution to journalArticleScientificpeer-review

Magnetometers
Magnetic Fields
inductance
Inductance
magnetometers
2013
2 Citations (Scopus)

Characterization of SQUID-based null detector for a quantum metrology triangle experiment

Luomahaara, J., Kemppinen, A., Helistö, P. & Hassel, J., 2013, In : IEEE Transactions on Applied Superconductivity. 23, 3, 5 p., 1601705.

Research output: Contribution to journalArticleScientificpeer-review

SQUIDs
triangles
metrology
Detectors
detectors
76 Citations (Scopus)

Hybrid ultra-low-field MRI and magnetoencephalography system based on a commercial whole-head neuromagnetometer

Vesanen, P. T., Nieminen, J. O., Zevenhoven, K. C. J., Dabek, J., Parkkonen, L. T., Zhdanov, A. V., Luomahaara, J., Hassel, J., Penttilä, J., Simola, J., Ahonen, A. I., Mäkelä, J. P. & Ilmoniemi, R. J., 2013, In : Magnetic Resonance in Medicine. 69, 6, p. 1795-1804 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Magnetoencephalography
Head
Equipment and Supplies
Magnetic Fields
2012
7 Citations (Scopus)

A large winding-ratio planar transformer with an optimized geometry for SQUID ammeter

Luomahaara, J., Kiviranta, M. & Hassel, J., 2012, In : Superconductor Science and Technology. 25, 3, 4 p., 035006.

Research output: Contribution to journalArticleScientificpeer-review

ammeters
Ammeters
SQUIDs
transformers
interference
2011
20 Citations (Scopus)

All-planar SQUIDs and pickup coils for combined MEG and MRI

Luomahaara, J., Vesanen, P. T., Penttilä, J., Nieminen, J. O., Dabek, J., Simola, J., Kiviranta, M., Grönberg, L., Zevenhoven, C. J., Ilmoniemi, R. J. & Hassel, J., 2011, In : Superconductor Science and Technology. 24, 7, 7 p., 075020.

Research output: Contribution to journalArticleScientificpeer-review

Magnetoencephalography
Pickups
SQUIDs
Magnetic resonance
magnetic resonance
30 Citations (Scopus)

Avoiding eddy-current problems in ultra-low-field MRI with self-shielded polarizing coils

Nieminen, J. O., Vesanen, P. T., Zevenhoven, K. C. J., Dabek, J., Hassel, J., Luomahaara, J., Penttilä, J. S. & Ilmoniemi, R. J., 2011, In : Journal of Magnetic Resonance. 212, 1, p. 154-160 7 p.

Research output: Contribution to journalArticleScientificpeer-review

eddy currents
coils
rooms
magnetic resonance
acquisition
2010
55 Citations (Scopus)

Electrical transport and field-effect transistors using inkjet-printed SWCNT films having different functional side groups

Gracia-Espino, E., Sala, G., Pino, F., Halonen, N., Luomahaara, J., Mäklin, J., Tóth, G., Kordás, K., Jantunen, H., Terrones, M., Helistö, P., Seppä, H., Ajayan, P. M. & Vajtai, R., 2010, In : ACS Nano. 4, 6, p. 3318-3324 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Field effect transistors
Nanotubes
Polyethylene glycols
Carbon Nanotubes
glycols