Research Output 1984 2019

32 Citations (Scopus)

Experimental investigation of hybrid single-electron turnstiles with high charging energy

Kemppinen, A., Kafanow, S., Pashkin, Y. A., Tsai, J. S., Averin, D. V. & Pekola, J. P., 2009, In : Applied Physics Letters. 94, 17, 3 p.

Research output: Contribution to journalArticleScientificpeer-review

charging
electrons
square waves
sine waves
energy

Experimental time dissemination services based on European GNSS signals: The H2020 DEMETRA project

Tavella, P., Sesia, I., Cerretto, G., Signorile, G., Calonico, D., Costa, R., Clivati, C., Cantoni, E., De Stefano, C., Frittelli, M., Formichella, V., Cerabolini, P., Rotiroti, L., Biserni, E., Leone, V., Zarroli, E., Sormani, D., Defraigne, P., Ozdemir, N., Baire, Q. & 23 others, Gandara, M., Hamoniaux, V., Varriale, E., Morante, Q., Widomski, T., Kaczmarek, J., Uzycki, J., Borgulski, K., Olbrysz, P., Kowalski, J., Beccari, M., Cernigliaro, A., Fiasca, F., Perucca, A., Mantero, S., Dhiri, V., Veiga, M. T., Suárez, T., Diaz, J., Mangiantini, M., Wallin, A. E., Galleani, L. & Hindley, D., 23 May 2016, 2016 European Frequency and Time Forum, EFTF 2016. IEEE Institute of Electrical and Electronic Engineers , 7477820

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Traffic control
Finance
Telecommunication
Calibration
time measurement

Fabrication and Studies of Silicide-Based Superconducting Nanowires

Lehtinen, J., Mykkänen, E., Kemppinen, A., Prunnila, M. & Manninen, A., 2018, CPEM 2018 - Conference on Precision Electromagnetic Measurements. IEEE Institute of Electrical and Electronic Engineers , 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

nanowires
fabrication
nanofabrication
crossovers
slip

Finnish national standards laboratories: 2003 annual report

Järvinen, J. (ed.), Heinonen, M. (ed.), Lassila, A. (ed.) & Rajala, R. (ed.), 2004, Helsinki: Centre of Metrology and Accreditation. 62 p. (MIKES Publication; No. J1/2004).

Research output: Book/ReportReport

Open Access
Open Access
Open Access
2 Citations (Scopus)

Fisheye camera method for spatial non-uniformity corrections in luminous flux measurements with integrating spheres

Kokka, A., Pulli, T., Poikonen, T., Askola, J. & Ikonen, E., 24 Jul 2017, In : Metrologia. 54, 4, p. 577-583 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Electric lamps
Cameras
Fluxes
Light emitting diodes
Angular distribution

Frequency comb-linked mid-infrared continuous-wave optical parametric oscillator

Peltola, J., Vainio, M., Fordell, T., Hieta, T., Merimaa, M. & Halonen, L., 21 Jul 2014, Advanced Photonics. Optical Society of America OSA, JM5A.21

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Optical parametric oscillators
parametric amplifiers
continuous radiation
Infrared radiation
13 Citations (Scopus)

Frequency-comb-referenced mid-infrared source for high-precision spectroscopy

Peltola, J., Vainio, M., Fordell, T., Hieta, T., Merimaa, M. & Halonen, L., 29 Dec 2014, In : Optics Express. 22, 26, p. 32429-32439 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
parametric amplifiers
spectroscopy
nitrous oxides
continuous radiation
methane

Frequency-comb-referenced tunable diode laser spectroscopy and laser stabilization applied to laser cooling

Fordell, T., Wallin, A. E., Lindvall, T., Vainio, M. & Merimaa, M., 2014, In : Applied Optics. 53, 31, p. 7476-7482

Research output: Contribution to journalArticleScientificpeer-review

Laser cooling
laser cooling
Laser spectroscopy
laser spectroscopy
Light sources
11 Citations (Scopus)

Frequency Comparison of 171 +Ion Optical Clocks at PTB and NPL via GPS PPP

Leute, J., Huntemann, N., Lipphardt, B., Tamm, C., Nisbet-Jones, P. B. R., King, S. A., Godun, R. M., Jones, J. M., Margolis, H. S., Whibberley, P. B., Wallin, A., Merimaa, M., Gill, P. & Peik, E., 1 Jul 2016, In : IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 63, 7, p. 981-985 5 p., 7398135.

Research output: Contribution to journalArticleScientificpeer-review

clocks
Global positioning system
Clocks
Ions
Extrapolation

Hajautetut vikasietoiset kelloverkot

Translated title of the contribution: Distributed fault-tolerant clock networksWallin, A., Lindvall, T. & Hanhijärvi, K., 2018, 12 p. (Maanpuolustuksen tieteellinen neuvottelukunta. Raporttisarja B).

Research output: Book/ReportReport

Open Access
rabbits
114 Citations (Scopus)

Hand-grip strength cut points to screen older persons at risk for mobility limitation

Sallinen, J., Stenholm, S., Rantanen, T., Heliövaara, M., Sainio, P. & Koskinen, S., 2010, In : Journal of the American Geriatrics Society. 58, 9, p. 1721-1726

Research output: Contribution to journalArticleScientificpeer-review

Mobility Limitation
Hand Strength
Body Mass Index
Anthropometry
Health Surveys
1 Citation (Scopus)

Harmonic Power Standard of VTT MIKES

Lehtonen, T., 2018, CPEM 2018 - Conference on Precision Electromagnetic Measurements. IEEE Institute of Electrical and Electronic Engineers , 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Voltage dividers
Function generators
Voltage measurement
Transconductance
Electric current measurement

Harmonic Power Standard of VTT MIKES

Lehtonen, T. A., 1 Jun 2019, In : IEEE Transactions on Instrumentation and Measurement. 68, 6, p. 2047-2052 6 p., 8556073.

Research output: Contribution to journalArticleScientificpeer-review

harmonics
Voltage dividers
Function generators
Voltage measurement
Transconductance
10 Citations (Scopus)

High-accuracy comparison of lightning and switching impulse calibrators

Wakimoto, T., Hällström, J. K., Chekurov, Y., Ishii, M., Lucas, W., Piiroinen, J. & Shimizu, H., 2007, In : IEEE Transactions on Instrumentation and Measurement. 56, 2, p. 619-623

Research output: Contribution to journalArticleScientificpeer-review

lightning
Lightning
impulses
Electric potential
electric potential

High AC current calibration system based on Rogowski coil

Havunen, J., Suomalainen, E-P. & Hällström, J., 2015, 2015 ISH: 19th International Symposium on High Voltage Engineering. 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Calibration
Electric instrument transformers
Busbars
Voltmeters
Electric current measurement

Improved systematic and random errors for long-distance time-transfer using PTP White Rabbit

Wallin, A., Rizzi, M., Calvés, G. M., Fordell, T. & Näränen, J., 2018.

Research output: Contribution to conferenceConference AbstractScientificpeer-review

Influence of Coaxial Cable on Response of High-Voltage Resistive Divider

Bergman, A., Nordlund, M., Elg, A-P., Havunen, J., Hällström, J. & Meisner, J., 2017, Proceedings.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Initial results from the MIKES-Metsähovi time and frequency link

Wallin, A., Fordell, T., Calvés Molera, G., Mujunen, A., Myyry, J. & Näränen, J., 2017.

Research output: Contribution to conferenceOther conference contributionScientific

Initial results from the MIKES-Metsähovi time and frequency link for the VGOS radio telescope

Molera Calvés, G., Näränen, J., Fordell, T. & Wallin, A., 2018, (Accepted/In press) IVS Publications: General Meeting Proceedings.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

radio telescopes
clocks
hydrogen masers
time signals
very long base interferometry
12 Citations (Scopus)

Interaction-time-averaged optical pumping in alkali-metal-atom Doppler spectroscopy

Lindvall, T. & Tittonen, I., 9 Sep 2009, In : Physical Review A - Atomic, Molecular, and Optical Physics. 80, 3, 032505.

Research output: Contribution to journalArticleScientificpeer-review

optical pumping
alkali metals
velocity distribution
spectroscopy
atoms

Intercomparison of reference measuring systems for lightning impulses between three National Metrology Institutes

Meisner, J., Elg, A. P., Hallstrom, J., Passon, S., Havunen, J., Bergman, A. & Nordlund, M., 14 Feb 2019, 2018 IEEE International Conference on High Voltage Engineering and Application: ICHVE 2018. IEEE Institute of Electrical and Electronic Engineers , 8642002. (ICHVE 2018 - 2018 IEEE International Conference on High Voltage Engineering and Application).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Lightning
Electric potential
Uncertainty

International timescales with optical clocks

Margolis, H. S., Benkler, E., Calonico, D., Denker, H., Delva, P., Godun, R. M., Lisdat, C., Achkar, J., Bize, S., Gersl, J., Gill, P., Lindvall, T., Merimaa, M., Pizzocaro, M., Piester, D., Riedel, F., Cesia, I., Shemar, S. L., Sterr, S. L., Timmen, L. & 4 others, Voigt, C., Vogt, S., Weyers, S. & Whibberley, P. B., 2015, Book of abstracts. IEEE Institute of Electrical and Electronic Engineers

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

17 Citations (Scopus)

International timescales with optical clocks (ITOC)

Margolis, H. S., Godun, R. M., Gill, P., Johnson, L. A. M., Shemar, S. L., Whibberley, P. B., Denker, H., Timmen, L., Voigt, C., Calonico, D., Lorini, L., Pizzocaro, M., Falke, S., Piester, D., Lisdat, D., Sterr, U., Weyers, S., Delva, P., Bize, S., Achkar, J. & 3 others, Gersl, J., Lindvall, T. & Merimaa, M., 2013, 2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC) . IEEE Institute of Electrical and Electronic Engineers , p. 908-911

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

clocks
International System of Units
relativistic effects
temporal resolution
gravitation
15 Citations (Scopus)

Long hold times in a two-junction electron trap

Kemppinen, A., Lotkhov, S. V., Saira, O-P., Zorin, A. B., Pekola, J. P. & Manninen, A. J., 2011, In : Applied Physics Letters. 99, 14, 3 p., 142106.

Research output: Contribution to journalArticleScientificpeer-review

traps
tunnel junctions
resistors
shielding
leakage

Long term stability of two 1000 kV voltage dividers

Elg, A., Bergman, A. & Hällström, J., 2015, Proceedings of the 19th International Symposium on High Voltage Engineering, Pilsen, Czech Republic, August, 23 – 28, 2015. University of West Bohemia, 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Voltage dividers
Electric potential
Calibration
Resistors
Painting
10 Citations (Scopus)

Luminous efficacy measurement of solid-state lamps

Poikonen, T., Pulli, T., Vaskuri, A., Baumgartner, H., Kärhä, P. & Ikonen, E., 2012, In : Metrologia. 49, 2, p. 135-140 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Electric lamps
Fluxes
Electronic equipment
Harmonic distortion

Measurement of the Internal Inductance of Impulse Voltage Generators and the Limits of LI Front Times

Larzelere, W., Hällström, J., Elg, A-P., Bergman, A., Klüss, J., Li, Y. & Zhou, L., 2017, Proceedings. 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
Inductance
Electric potential
Networks (circuits)
Impulse testing
Capacitance
17 Citations (Scopus)

MEMS-based AC voltage reference

Kärkkäinen, A., Pesonen, N., Suhonen, M., Oja, A. S., Manninen, A., Tisnek, N. & Seppä, H., 2005, In : IEEE Transactions on Instrumentation and Measurement. 54, 2, p. 595 - 599 5 p.

Research output: Contribution to journalArticleScientificpeer-review

microelectromechanical systems
MEMS
alternating current
Electric potential
electric potential
2 Citations (Scopus)

MEMS-based voltage detector

Helistö, P., Sipola, H., Seppä, H. & Manninen, A. J., 2015, In : Sensors and Actuators A: Physical. 234, p. 99-103

Research output: Contribution to journalArticleScientificpeer-review

microelectromechanical systems
MEMS
Voltage measurement
Detectors
low noise

Methods for characterization and minimization of microwave background in cryogenic environment

Lehtinen, J., Mykkänen, E., Kemppinen, A. & Manninen, A., 11 Aug 2016, Precision Electromagnetic Measurements (CPEM 2016), 2016 Conference on. IEEE Institute of Electrical and Electronic Engineers , p. 1-2

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

cryogenics
microwaves
optimization
photons
cryostats
1 Citation (Scopus)

Methods for decreasing uncertainties in LED photometry

Dönsberg, T., Pulli, T., Sildoja, M., Poikonen, T., Baumgartner, H., Manoocheri, F., Kärhä, P. & Ikonen, E., 2015, CIM2015: 17th International Congress of Metrology. Larquier, B. (ed.). EDP Sciences, 6 p. 11001

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Open Access
luminaires
photometry
light emitting diodes
illuminance
illuminating

Methods for Electrical Cooling and Thermometry of a Suspended Silicon Chip

Kemppinen, A., Mykkänen, E., Lehtinen, J., Shchepetov, A., Timofeev, A., Gunnarsson, D., Grönberg, L., Manninen, A. & Prunnila, M., 2018, CPEM 2018 - Conference on Precision Electromagnetic Measurements. IEEE Institute of Electrical and Electronic Engineers , 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

coolers
tunnel junctions
conductive heat transfer
temperature measurement
heat flux
1 Citation (Scopus)

Metrology for very fast current transients

Passon, S., Havunen, J., Meisner, J. & Kurrat, M., 13 Feb 2019, 2018 IEEE International Conference on High Voltage Engineering and Application: ICHVE 2018. IEEE Institute of Electrical and Electronic Engineers , 4 p. 8641787. (ICHVE 2018 - 2018 IEEE International Conference on High Voltage Engineering and Application).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Calibration
Cables
Sensors
Electric potential
Electric sparks
3 Citations (Scopus)

Metrology in electricity and magnetism: EURAMET activities today and tomorrow

Piquemal, F., Jeckelmann, B., Callegaro, L., Hällström, J., Janssen, T. J. B. M., Melcher, J., Rietveld, G., Siegner, U., Wright, P. & Zeier, M., 4 Aug 2017, In : Metrologia. 54, 5, p. R1-R24

Research output: Contribution to journalReview ArticleScientificpeer-review

Open Access
Magnetism
Electricity
Metric system
Nanotechnology
Graphene
1 Citation (Scopus)

Millimeter wave engineering of distributed Josephson junction arrays

Hassel, J., Grönberg, L., Helistö, P., Seppä, H., Nissilä, J. & Manninen, A., 2007, In : IEEE Transactions on Applied Superconductivity. 17, 2, p. 930-933

Research output: Contribution to journalArticleScientificpeer-review

Millimeter waves
Josephson junctions
millimeter waves
engineering
Power generation
8 Citations (Scopus)

Mini array of quantum Hall devices based on epitaxial graphene

Novikov, S., Lebedeva, N., Hämäläinen, J., Iisakka, I., Immonen, P., Manninen, A. & Satrapinski, A., 2016, In : Journal of Applied Physics. 119, 17, 174504.

Research output: Contribution to journalArticleScientificpeer-review

quantum Hall effect
graphene
Hall resistance
plateaus
wire

Multiple transfer standard for calibration and characterization of test setups for LED lamps and luminaires in industry

Sperling, A., Meyer, M., Pendsa, S., Jordan, W., Poikonen, T., Renoux, D. & Blattner, P., 2 Feb 2018, In : Metrologia. 55, 2, p. S37-S42

Research output: Contribution to journalArticleScientificpeer-review

Lighting fixtures
Electric lamps
Light emitting diodes
Calibration
Industry
39 Citations (Scopus)

Nanoampere pumping of Cooper pairs

Vartiainen, J. J., Möttönen, M., Pekola, J. P. & Kemppinen, A., 2007, In : Applied Physics Letters. 90, 8, 082102.

Research output: Contribution to journalArticleScientificpeer-review

pumping
frequency control
radio frequencies
transistors
pumps
6 Citations (Scopus)

Natural and accelerated ageing of LED lamps

Baumgartner, H., Renoux, D., Kärhä, P., Poikonen, T., Pulli, T. & Ikonen, E., 2016, In : Lighting Research and Technology. 48, 8, p. 930-942

Research output: Contribution to journalArticleScientificpeer-review

Electric lamps
Light emitting diodes
Aging of materials
Heating
Temperature
5 Citations (Scopus)

New evaluation of T - T2000 from 0.02 K to 1 K by independent thermodynamics methods

Engert, J., Kirste, A., Shibahara, A., Casey, A., Levitin, L., Saunders, J., Hahtela, O., Kemppinen, A., Mykkänen, E., Prunnila, M., Gunnarsson, D., Roschier, L., Meschke, M. & Pekola, J., 2016, In : International Journal of Thermophysics. 37, 125

Research output: Contribution to journalArticleScientificpeer-review

thermometers
thermodynamics
evaluation
temperature scales
budgets
4 Citations (Scopus)

Optical voltage sensor for MV networks

Fusiek, G., Nelson, J., Niewczas, P., Havunen, J., Suomalainen, E. P. & Hallstrom, J., 21 Dec 2017, IEEE SENSORS 2017 - Conference Proceedings. IEEE Institute of Electrical and Electronic Engineers , Vol. 2017-December. p. 1-3 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Piezoelectric transducers
Voltage measurement
Sensors
Electric potential
Fiber Bragg gratings
2 Citations (Scopus)

Optimizing Temperature Coefficient and Frequency Response of Rogowski Coils

Lehtonen, T. A. & Hällstrom, J., 15 Oct 2017, In : IEEE Sensors Journal. 17, 20, p. 6646-6652 7 p., 8022679.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
frequency response
Frequency response
coils
coefficients
Temperature
6 Citations (Scopus)

Performance of a modular wideband HVDC reference divider for voltages up to 1000 kV

Hällström, J., Bergman, A., Dedeoglu, S., Elg, A-P., Houtzager, E., Klüss, J., Lehtonen, T., Lucas, W., Meisner, J., Merev, A., Nieminen, T., Schmidt, M., Suomalainen, E-P. & Weber, C., 2015, In : IEEE Transactions on Instrumentation and Measurement. 64, 6, p. 1390-1397

Research output: Contribution to journalArticleScientificpeer-review

dividers
high voltages
broadband
Electric potential
electric potential
13 Citations (Scopus)

Performance of a wideband 200-kV HVDC reference divider module

Hällström, J., Bergman, A., Dedeoglu, S., Elg, A-P., Houtzager, E., Lucas, W., Merev, A., Meisner, J., Schmidt, M., Suomalainen, E-P. & Weber, C., 2014, In : IEEE Transactions on Instrumentation and Measurement. 63, 9, p. 2264-2270 6 p.

Research output: Contribution to journalArticleScientificpeer-review

dividers
high voltages
modules
broadband
Electric potential

Photoacoustic optical frequency comb spectroscopy of radioactive methane in the mid-infrared region

Karhu, J., Tomberg, T., Vieira, F. S., Genoud, G., Hanninen, V., Vainio, M., Metsälä, M., Hieta, T., Bell, S. & Halonen, L., Jun 2019, 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. IEEE Institute of Electrical and Electronic Engineers , 8872587. (2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Photoacoustic effect
Methane
Laser spectroscopy
methane
Spectroscopy

Precision Calibration System for Partial Discharge Calibrators

Havunen, J. & Hällström, J., 8 Aug 2019, Proceedings of the 26th Nordic Insulation Symposium, NORD-IS 19. p. 6-9 (Proceedings of the Nordic Insulation Symposium, Vol. 26).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
Partial discharges
Calibration
Uncertainty

Precision loss measurement of reactive compensation components by sampling voltage and current

Mohns, E., Hällström, J., Suomalainen, E-P., Badura, H. & Fricke, S., 11 Aug 2016, Precision Electromagnetic Measurements (CPEM 2016), 2016 Conference on . IEEE Institute of Electrical and Electronic Engineers , p. 1-3

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Sampling
Electric potential
Capacitors
Compensation and Redress
Industry

Pre-stabilization of a distributed feedback diode laser for locking to a high-finesse cavity

Fordell, T., Wallin, A. E., Lindvall, T. & Merimaa, M., 10 Aug 2016, CPEM 2016 - Conference on Precision Electromagnetic Measurements, Conference Digest. IEEE Institute of Electrical and Electronic Engineers , 7540698

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

locking
Semiconductor lasers
Stabilization
stabilization
semiconductor lasers