Research Output 1984 2019

2013
7 Citations (Scopus)

Spectrally adjustable quasi-monochromatic radiance source based on LEDs and its application for measuring spectral responsivity of a luminance meter

Hirvonen, J-M., Poikonen, T., Vaskuri, A., Kärhä, P. & Ikonen, E., 2013, In : Measurement Science and Technology. 24, 11, 8 p., 115201.

Research output: Contribution to journalArticleScientificpeer-review

Responsivity
Luminance
Radiance
luminance
radiance
5 Citations (Scopus)

Unpolarized, incoherent repumping light for prevention of dark states in a trapped and laser-cooled single ion

Lindvall, T., Fordell, T., Tittonen, I. & Merimaa, M., 2013, In : Physical Review A: Atomic, Molecular, and Optical Physics. 87, 1, 013439.

Research output: Contribution to journalArticleScientificpeer-review

spontaneous emission
lasers
ions
polarization modulation
laser modes
2012
11 Citations (Scopus)

Dark-state suppression and optimization of laser cooling and fluorescence in a trapped alkaline-earth-metal single ion

Lindvall, T., Merimaa, M., Tittonen, I. & Madej, A. A., 2012, In : Physical Review A: Atomic, Molecular, and Optical Physics. 86, 3, 033403.

Research output: Contribution to journalArticleScientificpeer-review

laser cooling
alkaline earth metals
retarding
cooling
fluorescence
1 Citation (Scopus)

Demonstration of 50-Hz electrical active power measurement using a micromechanical magnetometer

Rimminen, H., Hällström, J., Immonen, P., Seppä, H., Manninen, A., Latonen, T., Kyynäräinen, J. & Kärkkäinen, A., 2012, Proceedings: Conference on Precision electromagnetic Measurements, CPEM 2012 2012. Institute of Electrical and Electronic Engineers IEEE, p. 232-233

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

Magnetometers
Demonstrations
Lorentz force
Magnetic couplings
Electric potential

EURAMET #1172: Bilateral three-phase AC power and energy comparison at power frequency

Hällström, J., Suomalainen, E-P., Immonen, P. & Svensson, S., 2012, Espoo: Centre of Metrology and Accreditation. 18 p. (MIKES Publication; No. J2/2012).

Research output: Book/ReportReportProfessional

Open Access
alternating current
Finland
Sweden
energy
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
3 Citations (Scopus)

Uncertainty analysis of photometer directional response index f2 using Monte Carlo simulation

Poikonen, T., Blattner, P., Kärhä, P. & Ikonen, E., 2012, In : Metrologia. 49, 6, p. 727-736 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Photometers
Uncertainty analysis
Distance measurement
Monte Carlo simulation
Light sources

Uusi SI-järjestelmä toteuttaa Maxwellin unelman

Manninen, A., 2012, In : Arkhimedes. 2, p. 10-20 11 p.

Research output: Contribution to journalArticleProfessional

2011
6 Citations (Scopus)

Comparison of asynchronous sampling correction algorithms for frequency estimation of signals of poor power quality

Lapuh, R., Clarkson, P., Pogliano, U., Hällström, J. K. & Wright, P. S., 2011, In : IEEE Transactions on Instrumentation and Measurement. 60, 7, p. 2235-2241 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Frequency estimation
Power quality
sampling
Sampling
Measurement errors
3 Citations (Scopus)

DC voltage reference based on a square-wave-actuated microelectromechanical sensor

Kaasalainen, J. & Manninen, A., 2011, In : IEEE Transactions on Instrumentation and Measurement. 60, 7, p. 2506-2511 6 p.

Research output: Contribution to journalArticleScientificpeer-review

square waves
direct current
microelectromechanical systems
MEMS
capacitors
14 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
17 Citations (Scopus)

Programmable Josephson arrays for impedance measurements

Lee, J., Schurr, J., Nissilä, J., Palafox, L., Behr, R. & Kibble, B. P., 2011, In : IEEE Transactions on Instrumentation and Measurement. 60, 7, p. 2596-2601 6 p.

Research output: Contribution to journalArticleScientificpeer-review

impedance measurement
impedance
Networks (circuits)
Systematic errors
systematic errors

Radio-frequency transport of single electrons in superconductor-normal-metal tunnel junctions and the quantum metrological triangle

Kemppinen, A., Maisi, V. F., Saira, O-P., Kafanov, S., Lotkhov, S. V., Pashkin, Y. A., Aref, T., Meschke, M., Möttönen, M., Hahtela, O., Hassel, J., Luomahaara, J., Mykkänen, E., Koivula, H., Averin, D. V., Seppä, H., Tsai, J. S., Zorin, A. B., Manninen, A. & Pekola, J. P., 2011, Proceedings: XXXth URSI General Assembly and Scientific Symposium, URSIGASS 2011. Institute of Electrical and Electronic Engineers IEEE, 6050291

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

tunnel junctions
triangles
radio frequencies
insulators
metals
32 Citations (Scopus)

Single-electron shuttle based on a silicon quantum dot

Chan, K. W., Möttönen, M., Kemppinen, A., Lai, N. S., Tan, K. Y., Lim, W. H. & Dzurak, A. S., 2011, In : Applied Physics Letters. 98, 21, 3 p., 212103.

Research output: Contribution to journalArticleScientificpeer-review

quantum dots
electron gas
silicon
electrons
electric potential
10 Citations (Scopus)

Validating the single charged aerosol reference (SCAR) as a traceable particle number concentration standard for 10 nm to 500 nm aerosol particles

Högström, R., Yli-Ojanperä, J., Rostedt, A., Iisakka, I., Mäkelä, J. M., Heinonen, M. & Keskinen, J., 2011, In : Metrologia. 48, 5, p. 426-436 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Particles (particulate matter)
Aerosols
Calibration
Radiation counters
Charged particles
2010
112 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
9 Citations (Scopus)

Strong attenuation of the transients' effect in square waves synthesized with a programmable Josephson voltage standard

Jeanneret, B., Overney, F., Rufenacht, A. & Nissilä, J., 2010, In : IEEE Transactions on Instrumentation and Measurement. 59, 7, p. 1894-1899 6 p.

Research output: Contribution to journalArticleScientificpeer-review

square waves
attenuation
Electric potential
electric potential
waveforms
2 Citations (Scopus)

The EMRP project metrology for energy harvesting

Melcher, J., Cain, M., Bounouh, A., Cuenat, A., Jacquot, A., Manninen, A., Heinonen, M., Schumacher, B., Edler, F., Rees, J., Jaegle, M., Zucca, M., Klapetek, P., Lapuh, R. & Funck, T., 2010, 2010 Conference on Precision Electromagnetic Measurements, CPEM 2010. Institute of Electrical and Electronic Engineers IEEE, p. 253-254 2 p. 5545035

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

Energy harvesting
research projects
metrology
platforms
International cooperation
2009
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

Finnish National Standards Laboratories Biennial Report 2007-2008

Heinonen, M. (ed.), Järvinen, J. (ed.), Lassila, A. (ed.) & Manninen, A. (ed.), 2009, Espoo: Centre of Metrology and Accreditation. 57 p. (MIKES Publication; No. J1/2009).

Research output: Book/ReportReportProfessional

Open Access
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
20 Citations (Scopus)

Pumping properties of the hybrid single-electron transistor in dissipative environment

Lotkhov, S. V., Kemppinen, A., Kafanov, S., Pekola, J. P. & Zorin, A. B., 2009, In : Applied Physics Letters. 95, 11, 3 p.

Research output: Contribution to journalArticleScientificpeer-review

single electron transistors
pumping
resistors
leakage
transistors
27 Citations (Scopus)

Quantized current of a hybrid single-electron transistor with superconducting leads and a normal-metal island

Kemppinen, A., Meschke, M., Möttönen, M., Averin, D. V. & Pekola, J. P., 2009, In : European Physical Journal: Special Topics. 172, 1, p. 311-321

Research output: Contribution to journalArticleScientificpeer-review

Single electron transistors
single electron transistors
Metals
Electric potential
Leakage currents
18 Citations (Scopus)

Single-electronic radio-frequency refrigerator

Kafanov, S., Kemppinen, A., Pashkin, Y. A., Meschke, M., Tsai, J. S. & Pekola, J. P., 2009, In : Physical Review Letters. 103, 4 p., 120801.

Research output: Contribution to journalArticleScientificpeer-review

refrigerators
radio frequencies
single electron transistors
thermometers
electric potential
2008
10 Citations (Scopus)

Suppression of the critical current of a balanced superconducting quantum interference device

Kemppinen, A., Manninen, A. J., Möttönen, M., Vartiainen, J. J., Peltonen, J. T. & Pekola, J. P., 2008, In : Applied Physics Letters. 92, 5, 3 p., 052110.

Research output: Contribution to journalArticleScientificpeer-review

critical current
retarding
interference
Josephson junctions
inductance
2007
4 Citations (Scopus)

Construction and performance evaluation of calibration system for low voltage impulse

Wakimoto, T., Shimizu, H., Ishii, M., Hällström, J. & Lucas, W., 2007, In : IEEJ Transactions on Power and Energy. 127, 1, p. 261-266

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Calibration
Voltage measurement
Electric potential
Industry
Uncertainty
14 Citations (Scopus)

Effect of optical pumping on alkali-atom Doppler-limited spectra

Lindvall, T. & Tittonen, I., 1 Dec 2007, In : Journal of Modern Optics. 54, 18, p. 2779-2793

Research output: Contribution to journalArticleScientificpeer-review

optical pumping
alkalies
atoms
vapor pressure
formalism
13 Citations (Scopus)

Electrical stability of a MEMS-based AC voltage reference

Kärkkäinen, A., Tisnek, N., Manninen, A., Pesonen, N., Oja, A. S. & Seppä, H., 2007, In : Sensors and Actuators A: Physical. 137, 1, p. 169-174

Research output: Contribution to journalArticleScientificpeer-review

microelectromechanical systems
MEMS
alternating current
Electric potential
electric potential

Finnish National Standards Laboratories: Annual Report 2006

Heinonen, M. (ed.), Järvinen, J. (ed.), Lassila, A. (ed.) & Manninen, A. (ed.), 2007, Espoo: Centre of Metrology and Accreditation. 49 p. (MIKES Publication; No. J1/2007).

Research output: Book/ReportReportProfessional

Open Access
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
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
4 Citations (Scopus)

Worldwide comparison of lightning impulse voltage measuring systems at the 400-kV level

Hällstrom, J., Aro, M., Bergman, A., Bovier-Lapierre, V., Garnacho, F., Juvik, J. I., Kiseliev, V., Lian Hong, Z., Lucas, W., Li, Y., Pykälä, M. L., Rungis, J., Schon, K. & Truong, V. H., 2007, In : IEEE Transactions on Instrumentation and Measurement. 56, 2, p. 388-391

Research output: Contribution to journalArticleScientificpeer-review

lightning
Lightning
impulses
Electric potential
electric potential
2006
11 Citations (Scopus)

Trapping atoms on a transparent permanent-magnet atom chip

Shevchenko, A., Heiliö, M., Lindvall, T., Jaakkola, A., Tittonen, I., Kaivola, M. & Pfau, T., 15 May 2006, In : Physical Review A - Atomic, Molecular, and Optical Physics. 73, 5, 051401.

Research output: Contribution to journalArticleScientificpeer-review

permanent magnets
trapping
chips
traps
atoms
2005
3 Citations (Scopus)

Comparison EUROMET.EM-K8 of DC voltage ratio: Results

Marullo-Reedtz, G., Cerri, R., Waldmann, W., Streit, J., Immonen, P., Blanc, I., Raso, F., Funck, T., Schumacher, B., Dierikx, E. F., Nunes, M., Vrabček, P., Rudohradský, D., Gunnarsson, O., Rydler, K. E., Jeanneret, B., Jeckelmann, B., Pulfer, T., Turhan, S. S., Yilmaz, O. & 7 others, Williams, J. M., Slinde, H., Lind, K., Nicolas, J., Lindic, M., Flouda, E. & Erdos, G., 1 Apr 2005, In : IEEE Transactions on Instrumentation and Measurement. 54, 2, p. 576-579 4 p.

Research output: Contribution to journalArticleScientificpeer-review

direct current
Electric potential
electric potential
equivalence
16 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
8 Citations (Scopus)
square waves
Josephson junctions
alternating current
Electric potential
electric potential
8 Citations (Scopus)

Stimulated power generation in ES-SIS junction arrays

Hassel, J., Helistö, P., Grönberg, L., Seppä, H., Nissilä, J. & Kemppinen, A., 2005, In : IEEE Transactions on Instrumentation and Measurement. 54, 2, p. 632 - 635 4 p.

Research output: Contribution to journalArticleScientificpeer-review

SIS (superconductors)
Superconducting materials
Power generation
electric potential
Electric potential
2004

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/ReportReportProfessional

Open Access
2003
20 Citations (Scopus)

AC voltage standard based on a programmable SIS array

Helistö, P., Nissilä, J., Ojasalo, K., Penttilä, J. S. & Seppä, H., 2003, In : IEEE Transactions on Instrumentation and Measurement. 52, 2, p. 533-537 5 p.

Research output: Contribution to journalArticleScientificpeer-review

alternating current
Bias currents
Electric potential
electric potential
requirements
1988
5 Citations (Scopus)

A computer-controlled Josephson voltage standard

Seppä, H., Immonen, P. & Räihä, J., 1988, In : IEEE Transactions on Instrumentation and Measurement. 37, 1, p. 2-9

Research output: Contribution to journalArticleScientificpeer-review

Electrochemical cells
electrochemical cells
Electric potential
electric potential
Calibration
1985
2 Citations (Scopus)

Thin film process for Nb/NbOx/(Pb-In-Au) Josephson junction devices

Salmi, J., Knuutila, J., Seppä, H. & Immonen, P., 1985, In : Thin Solid Films. 126, 1-2, p. 77 - 81 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Josephson junction devices
Josephson junctions
Vacuum deposition
Thin films
vacuum deposition
1984

A quantum Hall effect silicon chip

Grönberg, L., Pohjonen, H., Murto, T., Heleskivi, J., Immonen, P. & Seppä, H., 1984, 11th Nordic Semiconductor Meeting. Espoo: VTT Technical Research Centre of Finland, p. 209-212 (VTT Symposium; No. 45).

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