Research Output 1984 2019

2017

Tarkka aikasynkronointi ja aikalinkit kriittisessä infrastruktuurissa

Wallin, A. E., 2017.

Research output: Contribution to conferenceOther conference contributionProfessional

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

Tavella, P., Sesia, I., Cerretto, G., Signorile, G., Calonico, D., Costa, R., Clivati, C., Cantoni, E., De Stefano, C., Frittelli, M., Formichella, V., Biserni, E., Leone, V., Zarroli, E., Sormani, D., Defraigne, P., Baire, Q., Gandara, M., Hamoniaux, V., Varriale, E. & 21 others, Morante, Q., Widomski, T., Kaczmarek, J., Uzycki, J., Borgulski, K., Olbrysz, P., Kowalski, J., Gliwka, K., Cernigliaro, A., Fiasca, F., Perucca, A., Facca, M., Dhiri, V., Veiga, M. T., Suarez, T., Diaz, J., Mangiantini, M., Wallin, A., Galleani, L., Whibberly, P. & Hindley, D., 27 Oct 2017, Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS). Institute of Electrical and Electronic Engineers IEEE, p. 475-476 2 p. 8088930

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

satellite navigation systems
Signal systems
Navigation
Satellites
European Union

Timekeeping and network time transfer

Wallin, A., 2017.

Research output: Contribution to conferenceConference articleScientific

4 Citations (Scopus)

Traceable Coulomb blockade thermometry

Hahtela, O., Mykkänen, E., Kemppinen, A., Meschke, M., Prunnila, M., Gunnarsson, D., Roschier, L., Penttilä, J. & Pekola, J., 1 Feb 2017, In : Metrologia. 54, 1, p. 69-76 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Coulomb blockade
Temperature
Digital voltmeters
Thermodynamics
Temperature scales

Using Deconvolution for Correction of Non-Ideal Step Response of Lightning Impulse Digitizers and Measurement Systems

Havunen, J., Hällström, J., Bergman, A. & Bergman, A. E., 2017, Proceedings.

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

2016
5 Citations (Scopus)

Accurate Coulomb blockade thermometry up to 60 kelvin

Meschke, M., Kemppinen, A. & Pekola, J. P., 2016, In : Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 374, 2064, 20150052.

Research output: Contribution to journalArticleScientificpeer-review

Coulomb blockade
Kelvin
temperature measurement
Nanofabrication
Electron Beam Lithography
3 Citations (Scopus)

A reference merging unit and calibration setup for sampled values over Ethernet

Lehtonen, T. & Hällström, J., 11 Aug 2016, Precision Electromagnetic Measurements (CPEM 2016), 2016 Conference on. Institute of Electrical and Electronic Engineers IEEE, p. 1-2

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

Ethernet
Merging
Calibration
Hardware

A three-phase calibration and field measurement setup based on a custom digitizer

Lehtonen, T., Hällström, J. & Suomalainen, E-P., 11 Aug 2016, Precision Electromagnetic Measurements (CPEM 2016), 2016 Conference on . Institute of Electrical and Electronic Engineers IEEE, p. 1-2

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

analog to digital converters
Finland
attenuators
budgets
computer programs

Bilateral high voltage ac peak and rms value comparison up to 150 kV between VTT and PTB

Meisner, J., Suomalainen, E-P., Hällström, J., Schmidt, M. & Seifert, H., 11 Aug 2016, Precision Electromagnetic Measurements (CPEM 2016), 2016 Conference on . Institute of Electrical and Electronic Engineers IEEE, p. 1-2

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

Electric potential
Capacitors
Voltmeters
Voltage dividers
Gases
1 Citation (Scopus)

Bilateral international inductance comparison using traveling standards in thermoregulated enclosures

Funck, T., Bothe, H., Kolling, A., Satrapinski, A. & Suomalainen, E. P., 10 Aug 2016, CPEM 2016 - Conference on Precision Electromagnetic Measurements, Conference Digest. Institute of Electrical and Electronic Engineers IEEE, 7540510

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

enclosure
Enclosures
inductance
Inductance
frequency ranges

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. Institute of Electrical and Electronic Engineers IEEE, 7477820

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

Traffic control
Finance
Telecommunication
Calibration
time measurement
10 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

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. Institute of Electrical and Electronic Engineers IEEE, p. 1-2

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

cryogenics
microwaves
optimization
photons
cryostats
7 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
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

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 . Institute of Electrical and Electronic Engineers IEEE, 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. Institute of Electrical and Electronic Engineers IEEE, 7540698

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

locking
Semiconductor lasers
Stabilization
stabilization
semiconductor lasers
6 Citations (Scopus)

Reducing current noise in cryogenic experiments by vacuum-insulated cables

Mykkänen, E., Lehtinen, J., Kemppinen, A., Krause, C., Drung, D., Nissilä, J. & Manninen, A., 2016, In : Review of Scientific Instruments. 87, 10, 10511.

Research output: Contribution to journalArticleScientificpeer-review

Superconducting cables
Refrigerators
White noise
Cryogenics
cables
4 Citations (Scopus)

Stable arbitrary waveform generator as a transfer standard for ADC calibration

Nissila, J., Sira, M., Lee, J., Ozturk, T., Arifovic, M., Diaz De Aguilar, J., Lapuh, R. & Behr, R., 10 Aug 2016, CPEM 2016 - Conference on Precision Electromagnetic Measurements, Conference Digest. Institute of Electrical and Electronic Engineers IEEE, 7540454

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

analog to digital converters
Digital to analog conversion
waveforms
generators
sampling
4 Citations (Scopus)

The European project DEMETRA: Demonstrating time dissemination services

Tavella, P., Sesia, I., Cerretto, G., Signorile, G., Calonico, D., Costa, R., Clivati, C., Cantoni, E., De Stefano, C., Frittelli, M., Formichella, V., Abadessa, A., Cernigliaro, A., Fiasca, F., Perucca, A., Mantero, S., Widomski, T., Kaczmarek, J., Uzycki, J., Borgulski, K. & 23 others, Olbrysz, P., Kowalski, J., Cerabolini, P., Rotiroti, L., Biserni, E., Zarroli, E., Leone, V., Veiga, M. T., Suárez, T., Diaz, J., Defraigne, P., Ozdemir, N., Blaire, Q., Gandara, M., Hamoniaux, V., Varriale, E., Morante, Q., Dhiri, V., Giulianini, E., Mangiantini, M., Wallin, A. E., Galleani, L. & Hindley, D., 1 Jan 2016, Proceedings of the 47th Annual Precise Time and Time Interval Systems and Applications Meeting. Institute of Navigation ION, p. 174-178 5 p.

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

Traffic control
Finance
Telecommunication
Navigation
Satellites
1 Citation (Scopus)

The European project DEMETRA, timing services based on European GNSS: First experimental results

Tavella, P., Sesia, I., Cerretto, G., Signorile, G., Calonico, D., Costa, R., Clivati, C., Cantoni, E., De Stefano, C., Frittelli, M., Formichella, V., Cernigliaro, A., Fiasca, F., Perucca, A., Mantero, S., Cerabolini, P., Rotiroti, L., Biserni, E., Leone, V., Zarroli, E. & 22 others, Sormani, D., Dhiri, V., Defraigne, P., Ozdemir, N., Baire, Q., Veiga, M. T., Suarez, T., Diaz, J., Gandara, M., Hamoniaux, V., Mangiantini, M., Varriale, E., Morante, Q., Wallin, A. E., Widomski, T., Kaczmarek, J., Uzycki, J., Borgulski, K., Olbrysz, P., Kowalski, J., Galleani, L. & Hindley, D., 21 Sep 2016, 3rd IEEE International Workshop on Metrology for Aerospace, MetroAeroSpace 2016 - Proceedings. Institute of Electrical and Electronic Engineers IEEE, p. 585-590 6 p. 7573281

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

satellite navigation systems
Navigation
time measurement
Satellites
Stamping
4 Citations (Scopus)

Time dissemination services: The experimental results of the European 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., Widomski, T., Kaczmarek, J., Uzycki, J., Borgulski, K., Olbrysz, P., Kowalski, J., Cerabolini, P., Biserni, E., Leone, V. & 21 others, Zarroli, E., Sormani, D., Cernigliaro, A., Fiasca, F., Perucca, A., Mantero, S., Defraigne, P., Ozdemir, N., Baire, Q., Dhiri, V., Veiga, M. T., Suarez, T., Diaz, J., Gandara, M., Hamoniaux, V., Mangiantini, M., Wallin, A. E., Varriale, E., Morante, Q., Galleani, L. & al., E., 16 Aug 2016, 2016 IEEE International Frequency Control Symposium, IFCS 2016 - Proceedings. Institute of Electrical and Electronic Engineers IEEE, 7563585

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

Traffic control
Finance
Standardization
Calibration
experimentation

Towards an Yb+ optical clock with a BBR uncertainty below 10^(-18)

Jones, J., Godun, R., King, S., Nisbet-Jones, P., Baynham, C., Fordell, T., Hieta, T., Lindvall, T., Bongs, K., Baird, P. & Gill, P., 2016.

Research output: Contribution to conferenceConference articleScientific

33 Citations (Scopus)

White rabbit precision time protocol on long-distance fiber links

Dierikx, E. F., Wallin, A. E., Fordell, T., Myyry, J., Koponen, P., Merimaa, M., Pinkert, T. J., Koelemeij, J. C. J., Peek, H. Z. & Smets, R., 1 Jul 2016, In : IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 63, 7, p. 945-952 8 p., 7383303.

Research output: Contribution to journalArticleScientificpeer-review

rabbits
Network protocols
fibers
Fibers
Optical fibers
2015
22 Citations (Scopus)

Analysis of thermal radiation in ion traps for optical frequency standards

Doležal, M., Balling, P., Nisbet-Jones, P. B. R., King, S. A., Jones, J. M., Klein, H. A., Gill, P., Lindvall, T., Wallin, A. E., Merimaa, M., Tamm, C., Sanner, C., Huntemann, N., Scharnhorst, N., Leroux, I. D., Schmidt, P. O., Burgermeister, T., Mehlstäubler, T. E. & Peik, E., 12 Nov 2015, In : Metrologia. 52, 6, p. 842-856 842.

Research output: Contribution to journalArticleScientificpeer-review

Frequency standards
Heat radiation
Ions
Temperature
Radiation

Broadband, unpolarized repumping and clearout light sources for alkaline-earth-metal single-ion clocks

Lindvall, T., Fordell, T., Dubé, P., Madej, A. A., Wallin, A. E. & Merimaa, M., 2015.

Research output: Contribution to conferenceConference PosterScientific

8 Citations (Scopus)

Broadband, unpolarized repumping and clearout light sources for Sr+ single-ion clocks

Fordell, T., Lindvall, T., Dubé, P., Madej, A. A., Wallin, A. E. & Merimaa, M., 1 Jan 2015, In : Optics Letters. 40, 8, p. 1822-1825

Research output: Contribution to journalArticleScientificpeer-review

clocks
light sources
broadband
ions
optical spectrum

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

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. Institute of Electrical and Electronic Engineers IEEE

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

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
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
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
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

Recent progress on the MIKES 88Sr+ single-ion optical clock

Lindvall, T., Fordell, T., Wallin, A. E. & Merimaa, M., 2015.

Research output: Contribution to conferenceConference PosterScientific

Tarkka aikasynkronointi ja aikalinkit maanpuolustuksessa: Tiivistelmäraportti

Merimaa, M. & Wallin, A., 2015, Puolustusministeriö. 14 p. (MATINEn raporttisarja B; No. 2500M-0034, Vol. 2015).

Research output: Book/ReportReportProfessional

Open Access
4 Citations (Scopus)

Traceability and Characterization of a 1000 kV HVDC Reference Divider

Elg, A-P., Bergman, A., Hällström, J., Kharezy, M. & Nieminen, T., 2015, In : IEEE Transactions on Instrumentation and Measurement. 64, 6, p. 1709-1715

Research output: Contribution to journalArticleScientificpeer-review

dividers
high voltages
Electric potential
Calibration
resistors
2014
43 Citations (Scopus)

An accurate single-electron pump based on a highly tunable silicon quantum dot

Rossi, A., Tanttu, T., Tan, K. Y., Iisakka, I., Zhao, R., Chan, K. W., Tattamazzi, G. C., Rogge, S., Dzurak, A. S. & Möttönen, M., 2014, In : Nano Letters. 14, 6, p. 3405-3411

Research output: Contribution to journalArticleScientificpeer-review

Silicon
Semiconductor quantum dots
quantum dots
Pumps
pumps

Andreev tunneling and quasiparticle excitations in mesoscopic normal metal - superconductor structures: Dissertation

Maisi, V. F., 2014, Espoo: Centre of Metrology and Accreditation. 239 p.

Research output: ThesisDissertationCollection of Articles

Open Access
theses
metals
excitation
electrons
tunnels

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
12 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

Recent progress on the MIKES 88Sr+ ion clock

Lindvall, T., Fordell, T., Wallin, A. E. & Merimaa, M., 2014, Book of abstracts: ECTI 2014 – 3rd European Conference on Trapped Ions. p. 61-61 PI-13

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

Open Access
2013

Characterization of epitaxial and CVD graphene with double metal-graphene

Novikov, S., Hämäläinen, J., Walden, J., Iisakka, I., Lebedeva, N. & Satrapinski, A., 2013, Proceedings: 16th International Congress of Metrology. Filtz, J. R. (ed.). EDP Sciences, 4 p. 13003

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

Open Access
Graphite
Chemical vapor deposition
Metals
Ozone
Sensors

Characterization of the linearity of a 1200 kV HVDC divider

Hällström, J., 2013, Espoo: Centre of Metrology and Accreditation. 16 p. (MIKES Publication; No. J2/2013).

Research output: Book/ReportReportProfessional

Open Access
dividers
linearity
high voltages
electric potential
resistors
23 Citations (Scopus)

Excitation of single quasiparticles in a small superconducting Al island connected to normal-metal leads by tunnel junctions

Maisi, V. F., Lotkhov, S. V., Kemppinen, A., Heimes, A., Muhonen, J. T. & Pekola, J. P., 2013, In : Physical Review Letters. 111, 14, 147001.

Research output: Contribution to journalArticleScientificpeer-review

tunnel junctions
excitation
aluminum
BCS theory
electron phonon interactions
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) . Institute of Electrical and Electronic Engineers IEEE, 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
10 Citations (Scopus)

Sensitivity optimization of epitaxial graphene-based gas sensors

Novikov, S., Satrapinski, A., Lebedeva, N. & Iisakka, I., 2013, In : IEEE Transactions on Instrumentation and Measurement. 62, 6, p. 1859-1864 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Chemical sensors
Graphene
graphene
optimization
sensitivity
171 Citations (Scopus)

Single-electron current sources: Toward a refined definition of the ampere

Pekola, J. P., Saira, O-P., Maisi, V. F., Kemppinen, A., Möttönen, M., Pashkin, Y. A. & Averin, D. V., 2013, In : Reviews of Modern Physics. 85, 4, 1421.

Research output: Contribution to journalArticleScientificpeer-review

electrons
International System of Units
metrology
integers
readout