Altti Akujärvi

  • Phone+358401603515
20092018

Research output per year

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Research Output

Aalto-1 spectral imager status update: Towards flight model

Näsilä, A., Akujärvi, A., Holmlund, C., Kantojärvi, U., Mannila, R., Mäkynen, J., Näkki, I., Antila, T., Saari, H., Toivanen, H. & Viherkanto, K., 2014.

Research output: Contribution to conferenceConference articleScientific

Gap quality measurements of flat-mirror Fabry-Pérot interferometers

Akujärvi, A., Antila, J. & Saari, H., 2012.

Research output: Contribution to conferenceConference articleScientific

Hand-held MEMS hyperspectral imager for VNIR mobile applications

Näsilä, A., Trops, R., Stuns, I., Havia, T., Saari, H., Guo, B., Ojanen, H. J., Akujärvi, A. & Rissanen, A., 1 Jan 2018, MOEMS and Miniaturized Systems XVII. International Society for Optics and Photonics SPIE, 105450R. (Proceedings of SPIE, Vol. 10545).

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

5 Citations (Scopus)

MEMS Fabry-Perot interferometer with Si-air mirrors for mid-and thermal infrared

Tuohiniemi, M., Näsilä, A. & Akujärvi, A., 2014, Proceedings of SPIE: Volume 8977, MOEMS and Miniaturized Systems XIII, 2014. International Society for Optics and Photonics SPIE, 10 p. 89770G. (Proceedings of SPIE, Vol. 8977).

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

1 Citation (Scopus)

Miniaturized hyperspectral imager calibration and UAV flight campaigns

Saari, H., Pölönen, I., Salo, H., Honkavaara, E., Hakala, T., Holmlund, C., Mäkynen, J., Mannila, R., Antila, T. & Akujärvi, A., 2013, Sensors, Systems, and Next-Generation Satellites XVII. International Society for Optics and Photonics SPIE, 88891O. (Proceedings of SPIE, Vol. 8889).

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

31 Citations (Scopus)

MOEMS FPI sensors for NIR-MIR microspectrometer applications

Akujärvi, A., Guo, B., Mannila, R. & Rissanen, A., 1 Jan 2016, MOEMS and Miniaturized Systems XV. International Society for Optics and Photonics SPIE, Vol. 9760. 97600M

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

6 Citations (Scopus)

MOEMS miniature spectrometers using tuneable Fabry-Perot interferometers

Rissanen, A., Akujärvi, A., Antila, J., Blomberg, M. & Saari, H., 2012, In : Journal of Micro/ Nanolithography, MEMS, and MOEMS. 11, 2, 6 p., 023003.

Research output: Contribution to journalArticleScientificpeer-review

New Hyperspectral Imager for Light Weight UAVs: First test flight results

Saari, H., Aallos, V-V., Akujärvi, A., Antila, T., Holmlund, C., Kantojärvi, U., Mäkynen, J. & Ollila, J., 2009, Nordic Remote Sensing Days 2009: Book of Abstracts. p. 74-75 (TKK Radio Science and Engineering Publications; No. R13).

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

Open Access

Novel miniaturized hyperspectral sensor for UAV and space applications

Saari, H., Aallos, V-V., Akujärvi, A., Antila, T., Holmlund, C., Kantojärvi, U., Mäkynen, J. & Ollila, J., 2009, Sensors, Systems, and Next-Generation Satellites XIII. Meynart, R. (ed.). International Society for Optics and Photonics SPIE, 13 p. 74741M-1. (Proceedings of SPIE; No. 7474).

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

42 Citations (Scopus)

Optical transmission performance of a surface-micromachined Fabry-Pérot interferometer for thermal infrared

Tuohiniemi, M., Blomberg, M., Akujärvi, A., Antila, J. & Saari, H., 2012, In : Journal of Micromechanics and Microengineering. 22, 11, 115004.

Research output: Contribution to journalArticleScientificpeer-review

21 Citations (Scopus)

Picasso VISION instrument design, engineering model test results, and flight model development status

Näsilä, A., Holmlund, C., Mannila, R., Näkki, I., Ojanen, H. J., Akujärvi, A., Saari, H., Fussen, D., Pieroux, D. & Demoulin, P., 2016, Proceedings of Remote Sensing of Clouds and the Atmosphere XXI. International Society for Optics and Photonics SPIE, (Proceedings of SPIE, Vol. 10001).

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

2 Citations (Scopus)

The Aalto-1 Spectral Imager (AaSI) mission

Näsilä, A., Antila, J., Akujärvi, A., Holmlund, C., Kantojärvi, U., Mannila, R., Mäkynen, J., Näkki, I., Rissanen, A., Saari, H., Toivanen, H. & Viherkanto, K., 2012.

Research output: Contribution to conferenceOther conference contributionScientific

UASI potato monitoring flight campaign preliminary results

Kaivosoja, J., Pesonen, L., Saari, H., Mäkynen, J., Akujärvi, A., Tuomisto, J., Knaapi, J. & Raski, P., 2012, Finnish Remote Sensing Days 2012: Book of abstracts. University of Helsinki, p. 18 1 p.

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

Open Access

Visible, very near IR and short wave IR hyperspectral drone imaging system for agriculture and natural water applicationS

Saari, H., Akujärvi, A., Holmlund, C., Ojanen, H., Kaivosoja, J., Nissinen, A. & Niemeläinen, O., 19 Oct 2017, Frontiers in Spectral imaging and 3D Technologies for Geospatial Solutions. Honkavaara, E., Hu, B., Karantzalos, K., Liang, X., Müller, R., Nocerino, E., Pölönen, I. & Rönnholm, P. (eds.). International Society for Photogrammetry and Remote Sensing ISPRS, p. 165-170 (International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. XLII-3W3).

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

Open Access
7 Citations (Scopus)

VTT's Fabry-Perot interferometer technologies for hyperspectral imaging and mobile sensing applications

Rissanen, A., Guo, B., Saari, H., Näsilä, A., Mannila, R., Akujärvi, A. & Ojanen, H., 1 Jan 2017, MOEMS and Miniaturized Systems XVI. Piyawattanametha, W. & Park, Y-H. (eds.). International Society for Optics and Photonics SPIE, Vol. 10116. 101160I. (Proceedings of SPIE, Vol. 10116).

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

8 Citations (Scopus)