Metrology Research Institute

Organisational unit: Research group

Research outputs

  1. 2020
  2. Published
  3. 2019
  4. Published

    Accelerated ageing of organic LED panels using ultraviolet exposure

    Askola, J., Çalkin, Y., Vaskuri, A., Poikonen, T. & Ikonen, E., Dec 2019, In : Lighting Research and Technology. 51, p. 1263-1274

    Research output: Contribution to journalArticle

  5. Published

    Setup for characterising the spectral responsivity of Fabry-Perot-interferometer-based hyperspectral cameras

    Pekkala, O., Pulli, T., Kokka, A. & Ikonen, E., Dec 2019, In : Metrologia. 56, 6, 6 p., 065005.

    Research output: Contribution to journalArticle

  6. Published

    Optical Characterization of III-V Multijunction Solar Cells for Temperature-Independent Band Gap Features

    Baumgartner, H., Oksanen, B., Kärhä, P. & Ikonen, E., Nov 2019, In : IEEE Journal of Photovoltaics. 9, 6, p. 1631-1636 6 p.

    Research output: Contribution to journalArticle

  7. Published

    Flat-field calibration method for hyperspectral frame cameras

    Kokka, A., Pulli, T., Honkavaara, E., Markelin, L., Kärhä, P. & Ikonen, E., 6 Aug 2019, In : Metrologia. 8 p., 055001.

    Research output: Contribution to journalArticle

  8. Published

    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. & 1 others, Ikonen, E., 18 Jun 2019, In : Metrologia. 56, 4, p. 045002 9 p.

    Research output: Contribution to journalArticle

  9. Published

    Influence of smart lighting control on the lifetime of high power LED luminaires

    Askola, J., Baumgartner, H., Pulli, T., Kärhä, P. & Ikonen, E., 1 Jan 2019, In : IOP Conference Series: Earth and Environmental Science. 352, 1, 012043.

    Research output: Contribution to journalConference article

  10. Published

    Luminous intensity comparison based on new standard lamps with LED reference spectrum

    Gerloff, T., Kallenbach, L., Ledig, J., Schrader, C., Sperling, A., Pulli, T., Askola, J., Smid, M., Kliment, P., Pons, A. & 8 others, Ferrero, A., Gal, P., Brida, G., Blattner, P., Stuker, F., Schneider, M., Dönsberg, T. & Poikonen, T., 2019, Proceedings of the 29th CIE Session. CIE, p. 77-84

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

  11. Published

    Measurement setup for differential spectral responsivity of solar cells

    Kärhä, P., Ikonen, E., Baumgartner, H., Kylmänen, K. & Oksanen, B., 2019, p. 50-51.

    Research output: Contribution to conferenceAbstractScientific

  12. Published

    Natural and accelerated ageing of organic LED panels using spectrally dispersed ultraviolet exposure

    Askola, J., Vaskuri, A., Poikonen, T. & Ikonen, E., 2019, p. 240-241.

    Research output: Contribution to conferenceAbstractScientific

  13. Published

    Predictable Quantum Efficient Detector (PQED) based on n-type silicon induced junction photodiodes

    Dönsberg, T., Porrasmaa, S., Manoocheri, F. & Ikonen, E., 2019, p. 95-96.

    Research output: Contribution to conferenceAbstractScientific

  14. Published

    Proceedings of OIE 2019: The 13th Japan-Finland Joint Symposium on Optics in Engineering26-30 August 2019, in Espoo and Tallinn

    Kärhä, P. (ed.), Ikonen, E. (ed.), Peiponen, K-E. (ed.) & Hayasaki, Y. (ed.), 2019, Espoo, Finland: Aalto University. 117 p.

    Research output: Book/ReportAnthology

  15. Published

    Reduced lifetime of LED street luminaires due to adaptive control

    Askola, J., Baumgartner, H., Pulli, T., Kärhä, P. & Ikonen, E., 2019, p. 214-215.

    Research output: Contribution to conferenceAbstractScientific

  16. Published

    Setup for characterising the spectral responsivity of Fabry-Perot-interferometer-based hyperspectral cameras

    Pekkala, O., Pulli, T., Kokka, A. & Ikonen, E., 2019, p. 39-40.

    Research output: Contribution to conferenceAbstractScientific

  17. Published

    Setup for characterizing the spectral responsivity of Fabry-Perot-interferometer-based hyperspectral cameras

    Pekkala, O., Pulli, T., Kokka, A. & Ikonen, E., 2019, p. 206-207.

    Research output: Contribution to conferenceAbstractScientific

  18. Published

    Spatial and Spectral Corrections for Integrating Sphere Photometry and Radiometry

    Kokka, A., 2019, Aalto University. 103 p.

    Research output: ThesisDoctoral ThesisCollection of Articles

  19. E-pub ahead of print
  20. 2018
  21. Published

    Development of white LED illuminants for colorimetry and recommendation of white LED reference spectrum for photometry

    Kokka, A., Poikonen, T., Blattner, P., Jost, S., Ferrero, A., Pulli, T., Ngo, M., Thorseth, A., Gerloff, T., Dekker, P. & 6 others, Stuker, F., Klej, A., Ludwig, K., Schneider, M., Reiners, T. & Ikonen, E., Aug 2018, In : Metrologia. 55, 4, p. 526-534 9 p.

    Research output: Contribution to journalArticle

  22. Published

    Uncertainty analysis of total ozone derived from direct solar irradiance spectra in the presence of unknown spectral deviations

    Vaskuri, A., Kärhä, P., Egli, L., Gröbner, J. & Ikonen, E., 20 Jun 2018, In : Atmospheric Measurement Techniques. 11, 6, p. 3595-3610 16 p.

    Research output: Contribution to journalArticle

  23. Published

    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 journalArticle

  24. Published

    Key comparison CCPR-K1.a as an interlaboratory comparison of correlated color temperature

    Karha, P., Vaskuri, A., Pulli, T. & Ikonen, E., 2 Mar 2018, In : Journal of Physics: Conference Series. 972, 1, 4 p., 012012.

    Research output: Contribution to journalConference article

  25. Published

    LED based reference for wavelength and relative intensity

    Baumgartner, H., Kylmanen, K., Kantamaa, O., Karha, P. & Ikonen, E., 2 Mar 2018, In : Journal of Physics: Conference Series. 972, 1, 5 p., 012010.

    Research output: Contribution to journalConference article

  26. Published

    Liquid nitrogen cryostat for predictable quantum efficient detectors

    Manoocheri, F., Dönsberg, T., Sildoja, M., Smid, M., Porrovecchio, G. & Ikonen, E., 2 Mar 2018, In : Journal of Physics: Conference Series. 972, 1, 3 p., 012021.

    Research output: Contribution to journalConference article

  27. Published

    Toward SI Traceability of a Monte Carlo Radiative Transfer Model in the Visible Range

    Jaanson, P., Bialek, A., Greenwell, C., Mantynen, H., Widlowski, J. L., Manoocheri, F., Lassila, A., Fox, N. & Ikonen, E., Mar 2018, In : IEEE Transactions on Geoscience and Remote Sensing. 56, 3, p. 1360 - 1373

    Research output: Contribution to journalArticle

  28. Published

    Out-of-Range Stray Light Characterization of Single-Monochromator Brewer Spectrophotometers

    Pulli, T., Karppinen, T., Nevas, S., Kärhä, P., Lakkala, K., Karhu, J., Sildoja, M-M., Vaskuri, A., Shpak, M., Manoocheri, F. & 4 others, Doppler, L., Gross, S., Mes, J. & Ikonen, E., 2018, In : ATMOSPHERE: OCEAN. 56, 1, p. 1-11 11 p.

    Research output: Contribution to journalArticle

  29. 2017
  30. Published

    Predictable quantum efficient detector based on n-type silicon photodiodes

    Dönsberg, T., Manoocheri, F., Sildoja, M., Juntunen, M., Savin, H., Tuovinen, E., Ronkainen, H., Prunnila, M., Merimaa, M., Tang, C. K. & 11 others, Gran, J., Mueller, I., Werner, L., Rougie, B., Pons, A., Smid, M., Gal, P., Lolli, L., Brida, G., Rastello, M. L. & Ikonen, E., Dec 2017, In : Metrologia. 54, 6, p. 821-836 16 p.

    Research output: Contribution to journalArticle

  31. Published

    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 journalArticle

  32. Published

    Method for estimating effects of unknown correlations in spectral irradiance data on uncertainties of spectrally integrated colorimetric quantities

    Karha, P., Vaskuri, A., Mäntynen, H., Mikkonen, N. & Ikonen, E., 18 Jul 2017, In : Metrologia. 54, 4, p. 524-534 11 p.

    Research output: Contribution to journalArticle

  33. Published

    Nonlinearity characterization of array spectroradiometers for the solar UV measurements

    Pulli, T., Nevas, S., Gawhary, O. E., Van Den Berg, S., Askola, J., Kärhä, P., Manoocheri, F. & Ikonen, E., 10 Apr 2017, In : Applied Optics. 56, 11, p. 3077-3086 10 p.

    Research output: Contribution to journalArticle

  34. Published

    Experimental demonstration of a predictable single photon source with variable photon flux

    Vaigu, A., Porrovecchio, G., Chu, X. L., Lindner, S., Smid, M., Manninen, A., Becher, C., Sandoghdar, V., Götzinger, S. & Ikonen, E., 21 Mar 2017, In : Metrologia. 54, 2, p. 218-223 6 p.

    Research output: Contribution to journalArticle

  35. Published

    Tutorial: Road Lighting for Efficient and Safe Traffic Environments

    Tetri, E., Bozorg Chenani, S., Räsänen, R-S., Baumgartner, H., Vaaja, M., Sierla, S., Tähkämö, L., Virtanen, J-P., Kurkela, M., Ikonen, E. & 3 others, Halonen, L., Hyyppä, H. & Kosonen, I., 19 Feb 2017, In : LEUKOS. 13, 4, p. 223-241 19 p.

    Research output: Contribution to journalArticle

  36. Published

    Characterizing an integrating sphere photometer for measurements of solid-state lighting panels

    Askola, J., Poikonen, T., Pulli, T. & Ikonen, E., 2017, Proceedings of the Conference on "Smarter Lighting for Better Life" at the CIE Midterm Meeting 2017. CIE, p. 538-543

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

  37. Published

    Facility for Determining Action Spectra of UV Photodegradation

    Vaskuri, A., Kärhä, P., Anu, H. & Ikonen, E., 2017, Radiation Processes in the Atmosphere and Ocean (IRS2016): Proceedings of the International Radiation Symposium (IRC/IAMAS). Davies, R., Egli, L. & Schmutz, W. (eds.). p. 1-4 4 p. 110011. (AIP Conference Proceedings; vol. 1810).

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

  38. Published

    Fisheye camera system for determining spatial non-uniformity corrections in luminous efficacy measurements with integrating spheres

    Kokka, A., Pulli, T., Poikonen, T., Askola, J. & Ikonen, E., 2017, Proceedings of the Conference on "Smarter Lighting for Better Life" at the CIE Midterm Meeting 2017. CIE, p. 203-207

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

  39. Published

    Monte Carlo analysis of uncertainty of total atmospheric ozone derived from measured spectra

    Kärhä, P., Vaskuri, A., Gröbner, J., Egli, L. & Ikonen, E., 2017, RADIATION PROCESSES IN THE ATMOSPHERE AND OCEAN: International Radiation Symposium (IRC/IAMAS) - Radiation Processes in the Atmosphere and Ocean. AMERICAN INSTITUTE OF PHYSICS, 4 p. 110005. (AIP Conference Proceedings; vol. 1810).

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

  40. 2016
  41. Published

    Temperature invariant energy value in LED spectra

    Baumgartner, H., Vaskuri, A., Kärhä, P. & Ikonen, E., 5 Dec 2016, In : Applied Physics Letters. 109, 23, 231103.

    Research output: Contribution to journalArticle

  42. Published

    Natural and accelerated ageing of LED lamps

    Baumgartner, H., Renoux, D., Kärhä, P., Poikonen, T., Pulli, T. & Ikonen, E., 1 Dec 2016, In : Lighting Research and Technology. 48, 8, p. 930-942 13 p.

    Research output: Contribution to journalArticle

  43. Published

    A reference material with close to Lambertian reflectance and fluorescence emission profiles

    Jaanson, P., Pulli, T., Manoocheri, F. & Ikonen, E., 4 Nov 2016, In : Metrologia. 53, 6, p. 1330-1338 9 p.

    Research output: Contribution to journalArticle

  44. Published

    A reference material with close to Lambertian reflectance and fluorescence emission profiles

    Jaanson, P., Pulli, T., Manoocheri, F. & Ikonen, E., 6 Sep 2016. 1 p.

    Research output: Contribution to conferencePaperScientific

  45. Published

    Uncertainty evaluation of fluorescence quantities obtained from goniometric measurements

    Ikonen, E., Jaanson, P., Pulli, T. & Manoocheri, F., 6 Sep 2016. 1 p.

    Research output: Contribution to conferencePaperScientific

  46. Published
  47. Published

    Model for simulating uncertainties of TOC from multispectral measurements

    Kärhä, P., Vaskuri, A., Nikke, M., Gröbner, J., Egli, L. & Ikonen, E., 20 May 2016.

    Research output: Contribution to conferencePaperScientific

  48. Published

    UV Ageing Facility for Determining Action Spectra of Photodegradation for Translucent Materials

    Vaskuri, A., Kärhä, P., Anu, H. & Ikonen, E., 22 Apr 2016, p. 329.

    Research output: Contribution to conferencePaperScientific

  49. Published

    Goniometrical measurements of fluorescence quantum efficiency

    Jaanson, P., Manoocheri, F. & Ikonen, E., 6 Jan 2016, In : Measurement Science and Technology. 27, 2, 025204.

    Research output: Contribution to journalArticle

  50. Published

    Review of challenges and disadvantages of possible LED-based photometric standards

    Poikonen, T., Pulli, T., Dönsberg, T., Baumgartner, H., Kärhä, P. & Ikonen, E., 2016, Proceedings of CIE 2016 Lighting Quality and Energy Efficiency, Melbourne, Australia. CIE

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

  51. Published

    Uncertainty evaluation of spectral integrals for LED lamps

    Pulli, T., Vaskuri, A., Mäntynen, H., Kärhä, P. & Ikonen, E., 2016, PROCEEDINGS OF CIE 2016 LIGHTING QUALITY AND ENERGY EFFICIENCY. CIE, p. 89-93 5 p.

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

  52. 2015
  53. Published

    Compact two-element transmission trap detector for 1550 nm wavelength

    Vaigu, A., Kübarsepp, T., Manoocheri, F., Merimaa, M. & Ikonen, E., 1 May 2015, In : Measurement Science and Technology. 26, 5, p. 1-6 6 p.

    Research output: Contribution to journalArticle

  54. Published

    ACCURATE MEASUREMENT OF ILLUMINANCE AND LUMINOUS EFFICACY OF WHITE LED LAMPS

    Ikonen, E., Pulli, T., Dönsberg, T., Poikonen, T., Manoocheri, F. & Kärhä, P., 2015, 28th CIE SESSION, Manchester, UNITED KINGDOM, June 28 July 4, 2015. Vienna, Austria: CIE, p. 138-139

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

  55. Published

    Advantages of white LED lamps and new detector technology in photometry

    Pulli, T., Donsberg, T., Poikonen, T., Manoocheri, F., Karha, P. & Ikonen, E., 2015, In : LIGHT: SCIENCE & APPLICATIONS. 4, 1, p. 00000

    Research output: Contribution to journalArticle

  56. Published

    Effects of intelligent control on the lifetime of LED street lights

    Baumgartner, H., Oksanen, J., Poikonen, T., Pulli, T., Kärhä, P. & Ikonen, E., 2015, 28th CIE SESSION, Manchester, UNITED KINGDOM, June 28 July 4, 2015. Vienna, Austria: CIE, p. 1662-1668

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

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