Dr. Ari Petteri Hokkanen Profile

Dr. Ari Petteri Hokkanen

Senior Scientist at VTT Technical Research Centre of Finland Ltd

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Publications (9)

Proceedings Article | 13 March 2024 Presentation + Paper

Cellulose optical fiber for human health monitoring

Ari Hokkanen, Markku Kapulainen, Aayush Kumar Jaiswal, Anniina Savolainen, Sourov Chandra, Minna Makki, Olli Ikkala, Hannes Orelma

Proceedings Volume 12835, 128350O (2024) https://doi.org/10.1117/12.3002236

KEYWORDS: Cellulose, Signal attenuation, Sensors, Optical fibers, Optical sensing

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Proceedings Article | 5 March 2022 Paper

Development of optical phased arrays in a micron-scale silicon photonics platform

Sidra Tul Muntaha, Ari Hokkanen, Mikko Harjanne, Matteo Cherchi, Pekka Suopajӓrvi, Petri Karvinen, Markku Pekkarinen, Matthieu Roussey, Timo Aalto

Proceedings Volume 12004, 120040W (2022) https://doi.org/10.1117/12.2609605

KEYWORDS: Phased array optics, Beam steering, Collimation, Waveguides, LIDAR, Silicon photonics, Optical testing, Distance measurement, Sensors, Phased arrays

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Proceedings Article | 2 March 2022 Presentation + Paper

Cellulose optical fiber for sensing applications

Ari Hokkanen, Markku Kapulainen, Aayush Kumar Jaiswal, Ville Hynninen, Nonappa Nonappa, Olli Ikkala, Hannes Orelma

Proceedings Volume 11953, 1195302 (2022) https://doi.org/10.1117/12.2609344

KEYWORDS: Optical fibers, Humidity, Sensors

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Proceedings Article | 27 February 2019 Presentation + Paper

Si photonics using micron-size waveguides

Timo Aalto, Matteo Cherchi, Mikko Harjanne, Fei Sun, Tapani Vehmas, Srivathsa Bhat, Markku Kapulainen, Ari Hokkanen, Lauri Lehtimäki, Heikki Holmberg, Atte Haapalinna

Proceedings Volume 10914, 109140B (2019) https://doi.org/10.1117/12.2516289

KEYWORDS: Waveguides, Silicon, Polarization, Mirrors, Vertical cavity surface emitting lasers, Sensors, Modulators, Semiconducting wafers, Silicon photonics, Germanium

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Proceedings Article | 22 April 2006 Paper

Optimising a grating-coupled evanescent field excitation

K. Kolari, A. Hokkanen, M. Kuittinen, J. Simonen, P. Heimala

Proceedings Volume 6189, 61891Z (2006) https://doi.org/10.1117/12.662622

KEYWORDS: Waveguides, Diffraction gratings, Luminescence, Diffraction, Wave propagation, Planar waveguides, Charge-coupled devices, Silica, Refractive index, Semiconducting wafers

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Proceedings Article | 29 June 2005 Paper

Self-feeding microfluidic structures on silicon and glass

Kai Kolari, Ari Hokkanen, Ingmar Stuns

Proceedings Volume 5839, (2005) https://doi.org/10.1117/12.609827

KEYWORDS: Silicon, Silica, Etching, Capillaries, Plasmas, Microfluidics, Oxygen, Plasma etching, Molecules, Fluorine

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Proceedings Article | 17 January 2003 Paper

Active silicon support for DNA diagnostics

Ari Hokkanen, Joona Koponen, Kai Kolari, Ingmar Stuns

Proceedings Volume 4982, (2003) https://doi.org/10.1117/12.472735

KEYWORDS: Silicon, Liquids, Luminescence, Semiconducting wafers, Glasses, Capillaries, Temperature metrology, Chemical elements, Photomultipliers, Oxides

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Proceedings Article | 10 May 2001 Paper

Time-resolved UV-excited microarray reader for fluorescence energy transfer (FRET) measurements

Adelina Orellana, Ari Hokkanen, Tomi Pastinen, Kristina Takkinen, Hans Soderlund

Proceedings Volume 4252, (2001) https://doi.org/10.1117/12.426728

KEYWORDS: Fluorescence resonance energy transfer, Luminescence, Glasses, Europium, Proteins, Photomultipliers, Energy transfer, Time resolved spectroscopy, Time metrology, Solids

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Proceedings Article | 10 January 1996 Paper

New capillary optical fiber structure for fluorescence sensors

Pauli Kiiveri, Ari Hokkanen, Raija Kylmanen, Kari Keinanen, Simo Tammela

Proceedings Volume 2695, (1996) https://doi.org/10.1117/12.229944

KEYWORDS: Capillaries, Luminescence, Coating, Structured optical fibers, Refractive index, Waveguides, Quartz, Sensors, Silicon, Cladding

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Showing 5 of 9 publications

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