Research Output

Article
8 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

6 Citations (Scopus)

Relationships between junction temperature, electroluminescence spectrum and ageing of light-emitting diodes

Vaskuri, A., Kärhä, P., Baumgartner, H., Kantamaa, O., Pulli, T., Poikonen, T. & Ikonen, E., 15 Mar 2018, In : Metrologia. 55, 2, p. S86-S95

Research output: Contribution to journalArticleScientificpeer-review

Open Access
18 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

12 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

193 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

18 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

33 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

9 Citations (Scopus)

Spectroscopic thermometry for long-distance surveying

Tomberg, T., Fordell, T., Jokela, J., Merimaa, M. & Hieta, T., 10 Jan 2017, In : Applied Optics. 56, 2, p. 239-246 8 p.

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Spin Resonance Clock Transition of the Endohedral Fullerene N 15 @ C60

Harding, R. T., Zhou, S., Zhou, J., Lindvall, T., Myers, W. K., Ardavan, A., Briggs, G. A. D., Porfyrakis, K. & Laird, E. A., 4 Oct 2017, In : Physical Review Letters. 119, 14, 140801.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
3 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

8 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

10 Citations (Scopus)

Superconducting MoSi nanowires

Lehtinen, J. S., Kemppinen, A., Mykkänen, E., Prunnila, M. & Manninen, A. J., 1 Jan 2018, In : Superconductor Science and Technology. 31, 1, 015002.

Research output: Contribution to journalArticleScientificpeer-review

5 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

10 Citations (Scopus)

Thermionic junction devices utilizing phonon blocking

Mykkänen, E., Lehtinen, J. S., Grönberg, L., Shchepetov, A., Timofeev, A. V., Gunnarsson, D., Kemppinen, A., Manninen, A. J. & Prunnila, M., 2020, In : Science advances. 6, 15, eaax9191.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
1 Citation (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

2 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

7 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

7 Citations (Scopus)

Traceable measurement of transmitted overvoltages in instrument transformers

Elg, A-P., Garnacho, F., Garcia, T., Rovira, J., Hällström, J. & Nieminen, T., Dec 2019, In : CIGRE Science and Engineering. 16, p. 58-63 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
21 Downloads (Pure)

Transconductance amplifier for optical metrology applications of light-emitting diodes

Dönsberg, T., Poikonen, T. & Ikonen, E., Jun 2020, In : IEEE Transactions on Instrumentation and Measurement. 69, 6, p. 3704-3710 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
1 Citation (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

12 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

4 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

8 Citations (Scopus)

Uusi SI-järjestelmä toteuttaa Maxwellin unelman

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

Research output: Contribution to journalArticleProfessional

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

10 Citations (Scopus)

Validation of the fisheye camera method for spatial non-uniformity corrections in luminous flux measurements with integrating spheres

Kokka, A., Pulli, T., Ferrero, A., Dekker, P., Thorseth, A., Kliment, P., Klej, A., Gerloff, T., Ludwig, K., Poikonen, T. & Ikonen, E., 18 Jun 2019, In : Metrologia. 56, 4, 045002.

Research output: Contribution to journalArticleScientificpeer-review

Open Access

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

47 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

5 Citations (Scopus)
Article in a proceedings journal

Redundant secure timing sources and timing distribution to digital power protection and control applications

Hauglin, H., Dunker, T., Wallin, A., Tungland, O., Hurzuk, N. & Løken, R., Feb 2020, In : CIGRE Science and Engineering. 17, p. 94-100

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

Chapter or book article

Kuitutekniikka suurjännitemittauksissa

Rajala, R., 1986, Sähkömittaukset ja mittauslaitteet. Härkönen, S. (ed.). Helsinki, p. 189-191

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

Conference Abstract

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

Towards distributed fault-tolerant timekeeping based on a WR-network

Wallin, A., 2018.

Research output: Contribution to conferenceConference AbstractScientific

Conference abstract in proceedings

AC voltage standard based on an externally-shunted SIS Josephson junction array

Kemppinen, A., Nissilä, J., Ojasalo, K., Hassel, J., Manninen, A., Helistö, P. & Seppä, H., 2005, Extended abstracs of 10th international superconductive electronics conference (ISEC 2005). P-K.12

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

An optical atomic clock using a single 171Yb+ ion with a characterisation of thermal systematic effects

Baynham, C., Curtis, E. A., Godun, R. M., Jones, J. M., Nisbet-Jones, P. B. R., Baird, P. E. G., Gill, P., Fordell, T. & Lindvall, T., 1 Jul 2018, Book of abstracts of the 50th Anniversary EGAS conference. p. 81 1 p.

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

A Simple High-Performance Remote-Maser Concept

Fordell, T. & Wallin, A., 2018, 2018 European Frequency and Time Forum (EFTF): Abstracts. p. 143

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

Broadband lasers for photo-ionization and trapped-ion operations

Fordell, T. & Lindvall, T., 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, 8871597

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

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

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

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

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
Conference article

Alternative method for processing tail chopped lightning impulse waveforms

Hall Barbosa, C. R., Hällström, J., Ferreira, L. S., Silva, M. T. & Azevedo, L. C., 1 Jan 2015.

Research output: Contribution to conferenceConference articleScientificpeer-review

Open Access
1 Citation (Scopus)

Blackbody Radiation Shifts for 171Yb+ Optical Clock Transitions

Baynham, C. F. A., Curtis, E. A., Godun, R. M., Jones, J. M., Nisbet-Jones, P. B. R., Gill, P., Fordell, T., Hieta, T. & Lindvall, T., 2017. 2 p.

Research output: Contribution to conferenceConference articleScientific

Open Access

Defining the Robust Timing Service for Future EGNSS

Dierikx, E., Bauernfeind, R., Wallin, A., Özel, F., Zelle, H. & Kirkko-Jaakkola, M., 2017.

Research output: Contribution to conferenceConference articleScientific

Josephson voltage standard

Seppä, H., Immonen, P., Räihä, J., Salmi, J. & Vuorinen, J., 1984.

Research output: Contribution to conferenceConference articleScientific

Timekeeping and network time transfer

Wallin, A., 2017.

Research output: Contribution to conferenceConference articleScientific

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

Use of the quantum hall effect as a resistance standard

Immonen, P., Grönberg, L. & Seppä, H., 1984. 4 p.

Research output: Contribution to conferenceConference articleScientific

Conference article in proceedings

A computer controlled Josephson voltage standard

Seppä, H., Immonen, P. & Räihä, J., 1986, CPEM 86: 1986 Conference on precision electromagnet measurements. p. 110-111

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

A Modular USB 2.0 digitizer for electrical power measurements

Lehtonen, T. & Hällström, J., 12 Sep 2014, 29th Conference on Precision Electromagnetic Measurements (CPEM 2014). IEEE Institute of Electrical and Electronic Engineers, p. 78-79 2 p. 6898267

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

5 Citations (Scopus)

An automatic AC bridge for precision resistance measurements

Seppä, H., Immonen, P., Saari, J-M. & Veijola, T., 1986, CPEM 86: 1986 Conference on precision electromagnetic measurements.. p. 205-206

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

An improved method for switching-impulse evaluation

Nilsson, A., Bergman, A. & Hällström, J., 3 Oct 2012, 2012 Conference on Precision electromagnetic Measurements. IEEE Institute of Electrical and Electronic Engineers, p. 20-21 2 p. 6250638

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

5 Citations (Scopus)