Overview
Background
Dr Torniainen's main research interests are in the fields of biomedical signal and image processing, biophotonics, and applied spectroscopy. He holds BSc/MSc in Electrical Engineering from Aalto University (Finland, 2015) and a PhD in Applied Physics from University of Eastern Finland (Finland, 2020). He has previously worked with developing preprocessing techniques for EEG/MEG, real-time analysis methods for physiological signals (e.g., ECG/EMG/EDA), and near-infrared spectroscopy based analysis of tissue integrity for musculoskeletal tissues. His current research focus is on machine learning in image processing, analysis, and synthesis of biomedical images acquired using a combination of terahertz imaging, nano-FTIR, and Raman spectroscopy. The purpose of this study is to better understand the interaction between light and multi-layered tissues such as articular cartilage and skin.
Availability
- Dr Jari Torniainen is:
- Available for supervision
Fields of research
Qualifications
- Doctor of Philosophy of Applied Physics, University of Eastern Finland
Works
Search Professor Jari Torniainen’s works on UQ eSpace
2026
Journal Article
Passive beam shaping for terahertz quantum cascade lasers
Zhou, Tao, Silva, Jorge, Bertling, Karl, Qi, Xiaoqiong, Gillespie, Tim, Torniainen, Jari, Leslie, Andrew, Herbert, Jeremy, Kirkeby, Bent, Ngo, Ethan, Indjin, Dragan, Dean, Paul, Valavanis, Alexander, Li, Lianhe, Linfield, Edmund H., Davies, A. Giles and Rakić, Aleksandar D. (2026). Passive beam shaping for terahertz quantum cascade lasers. IEEE Transactions on Terahertz Science and Technology, 1-10. doi: 10.1109/tthz.2026.3667748
2026
Other Outputs
Passive beam shaping for terahertz quantum cascade lasers
Zhou, Tao, Silva, Jorge, Bertling, Karl, Qi, Xiaoqiong, Gillespie, Tim, Torniainen, Jari, Leslie, Andrew, Herbert, Jeremy, Kirkeby, Bent, Ngo, Ethan, Dragan Indjin, Paul Dean, Alexander Valavanis, Lianhe Li, Edmund H. Linfield, A. Giles Davies and Aleksandar D. Rakic (2026). Passive beam shaping for terahertz quantum cascade lasers. The University of Queensland. (Dataset) doi: 10.48610/a02ef1c
2026
Journal Article
The Taj Mahal conservation and the scope of electromagnetic sensing
Bandyopadhyay, Aparajita, Chanda, Puspita, Aalam, Uzair, Khatri, Kashika, Bertling, Karl, Torniainen, Jari, Rakić, Aleksandar D. and Sengupta, Amartya (2026). The Taj Mahal conservation and the scope of electromagnetic sensing. Journal of Physics: Photonics, 8 (1) 012004, 012004. doi: 10.1088/2515-7647/ae3a25
2025
Conference Publication
3D terahertz tomography for in-situ semiconductor chip inspection
Torniainen, J., Bertling, K., Silva, J., Gilliespie, T., Li, L.H., Indjin, D, Davies, A.G., Linfield, E.H., Dean, P. and Rakić, A.D. (2025). 3D terahertz tomography for in-situ semiconductor chip inspection. 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Helsinki, Finland, 17-22 August 2025. Piscataway, NJ, United States: IEEE. doi: 10.1109/irmmw-thz61557.2025.11319593
2025
Conference Publication
Visualizing terahertz-tissue interactions for early skin pathology detection
Torniainen, J., Qi, X., Bertling, K., Kong, F., Gillespie, T., Primiero, C., Stark, M. S., Dean, P., Indjin, D, Li, L. H., Linfield, E. H., Davies, A. G., Brünig, M., Mills, T., Rosendahl, C., Soyer, H. P. and Rakić, A. D. (2025). Visualizing terahertz-tissue interactions for early skin pathology detection. 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Helsinki, Finland, 17-22 August 2025. Piscataway, NJ, United States: IEEE. doi: 10.1109/irmmw-thz61557.2025.11319771
2025
Conference Publication
Terahertz time domain and laser feedback interferometry study of sulfur inclusion in marble
Chanda, Puspita, Bertling, Karl, Aalam, Uzair, Kashyap, Mayuri, Torniainen, Jari, Guo, Xiao, Gillespie, Tim, Indjin, Dragan, Li, Lianhe, Linfield, Edmund H., Davies, A. Giles, Dean, Paul, Bandyopadhyay, Aparajita, Sengupta, Amartya and Rakić, Aleksandar. D. (2025). Terahertz time domain and laser feedback interferometry study of sulfur inclusion in marble. 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Helsinki, Finland, 17-22 August 2025. Piscataway, NJ United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/irmmw-thz61557.2025.11319883
2025
Conference Publication
Near-field optical microscopy for spatially confined nanostructures
Guo, Xiao, Bertling, Karl, Belonohy, Daniella, Zhang, Xueqin, Wang, Zhiyao, Virdis, Bernardino, Mathel, Vincent, Aziz, Shazed, Heitzman, Michael, Vandi, Luigi-Jules, Degnan, Zachary, Steele, Julian A., Jacobson, Peter, Chanda, Puspita, Torniainen, Jari, Donose, Bogdan C., Brünig, Michael and Rakić, Aleksandar D. (2025). Near-field optical microscopy for spatially confined nanostructures. 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Helsinki, Finland, 17-22 August 2025. Piscataway, NJ, United States: IEEE. doi: 10.1109/irmmw-thz61557.2025.11319789
2025
Conference Publication
Non-destructive THz techniques for monitoring environmental degradation of marble in iconic structures
Chanda, Puspita, Bertling, Karl, Khatri, Kashika, Aalam, Uzair, Torniainen, Jari, Gillespie, Tim, Indjin, Dragan, Li, Lianhe, Linfield, Edmund, Davies, AG, Dean, Paul, Sengupta, Amartya, Bandyopadhyay, Aparajita and Rakic, Aleksandar D. (2025). Non-destructive THz techniques for monitoring environmental degradation of marble in iconic structures. 2025 Conference on Optics for Arts, Architecture, and Archaeology-O3A, Munich, Germany, 23 - 26 June 2025. Bellingham, WA, United States: SPIE - International Society for Optical Engineering. doi: 10.1117/12.3062581
2025
Journal Article
Subwavelength 3D terahertz imaging with a single-pixel laser transceiver
Silva, Jorge, Plöschner, Martin, Bertling, Karl, Ghantala, Mukund, Gillespie, Tim, Torniainen, Jari, Herbert, Jeremy, Lim, Yah Leng, Taimre, Thomas, Qi, Xiaoqiong, Donose, Bogdan C., Zhou, Tao, Lui, Hoi-Shun, Indjin, Dragan, Han, Yingjun, Li, Lianhe, Valavanis, Alexander, Linfield, Edmund H., Davies, A. Giles, Dean, Paul and Rakić, Aleksandar D. (2025). Subwavelength 3D terahertz imaging with a single-pixel laser transceiver. Optics Express, 33 (10), 21938-21950. doi: 10.1364/oe.561713
2025
Journal Article
The human patellar tendon is mechanically homogenous at its mid-substance
Kositsky, Adam, Stenroth, Lauri, Nippolainen, Ervin, Torniainen, Jari, Mäkelä, Janne T.A., Paakkari, Petri, Paakkonen, Tommi, Kröger, Heikki, Töyräs, Juha, Afara, Isaac O. and Korhonen, Rami K. (2025). The human patellar tendon is mechanically homogenous at its mid-substance. Journal of the Mechanical Behavior of Biomedical Materials, 163 106875, 1-10. doi: 10.1016/j.jmbbm.2024.106875
2025
Conference Publication
Terahertz frequency combs in quantum cascade lasers with frequency dependent feedback
Silvestri, Carlo, Qi, Xiaoqiong, Taimre, Thomas, Torniainen, Jari, Chanda, Puspita and Rakić, Aleksandar D. (2025). Terahertz frequency combs in quantum cascade lasers with frequency dependent feedback. 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Helsinki, Finland, 17-22 August 2025. Piscataway, NJ, United States: IEEE Computer Society. doi: 10.1109/IRMMW-THz61557.2025.11319685
2024
Conference Publication
Terahertz Laser Feedback Imaging of Marble Cultural Heritage Structures
Bertling, Karl, Torniainen, Jari, Guo, Xiao, Bandyopadhyay, Aparajita, Chanda, Puspita, Sengupta, Amartya, Dean, Paul, Li, Lianhe, Indjin, Dragan, Davies, A. Giles, Linfield, Edmund H. and Rakić, Aleksandar D. (2024). Terahertz Laser Feedback Imaging of Marble Cultural Heritage Structures. 2024 Conference on Optoelectronic and Microelectronic Materials and Devices, Melbourne, VIC Australia, 2-5 December 2024.
2024
Conference Publication
Non-destructive 3D terahertz imaging via laser feedback interferometry
Silva, Jorge, Plöschner, Martin, Bertling, Karl, Ghantala, Mukund, Gillespie, Tim, Torniainen, Jari, Herbert, Jeremy, Lim, Yah Leng, Taimre, Thomas, Qi, Xiaoqiong, Donose, Bogdan C., Zhou, Tao, Lui, Hoi-Shun, Indjin, Dragan, Han, Yingjun, Li, Lianhe, Valavanis, Alexander, Linfield, Edmund H., Davies, A. Giles, Dean, Paul and Rakić, Aleksandar D. (2024). Non-destructive 3D terahertz imaging via laser feedback interferometry. 2024 Conference on Optoelectronic and Microelectronic Materials and Devices, Melbourne, VIC Australia, 2-5 December 2024.
2024
Journal Article
A novel tape-free sample preparation method for human osteochondral cryosections for high throughput hyperspectral imaging
Fan, Xiwei, Donose, Bogdan, Jones, Michael W M, Howard, Daryl, Torniainen, Jari, Bertling, Karl, Guo, Xiao, Kewish, Cameron M, Lee, Kah Meng, Sun, Antonia Rujia, Rakic, Aleksandar, Crawford, Ross, Afara, Isaac O. and Prasadam, Indira (2024). A novel tape-free sample preparation method for human osteochondral cryosections for high throughput hyperspectral imaging. Histochemistry and Cell Biology, 163 (1) 16, 16. doi: 10.1007/s00418-024-02338-1
2024
Conference Publication
Terahertz quantum cascade laser feedback imaging for cultural heritage preservation
Bertling, K., Torniainen, J., Rakić, A.D., Bandyopadhyay, A., Chanda, P., Sengupta, A., Dean, P, Indjin, D, Li, L.H., Davies, A.G. and Linfield, E.H. (2024). Terahertz quantum cascade laser feedback imaging for cultural heritage preservation. 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Perth, WA, Australia, 1 - 6 September 2024. Piscataway, NJ, United States: Institute of Electrical and Electronic Engineers. doi: 10.1109/irmmw-thz60956.2024.10697894
2024
Journal Article
Detecting genetic variation in plants by mapping cell water dynamics with terahertz laser feedback interferometry
Kundu, Urbi, Torniainen, Jari, Bertling, Karl, Kashyap, Mayuri, Donose, Bogdan C., Gillespie, Tim, Indjin, Dragan, Li, Lianhe, Linfield, Edmund H., Davies, A. Giles, Dean, Paul, Bandyopadhyay, Aparajita, Sengupta, Amartya and Rakić, Aleksandar D. (2024). Detecting genetic variation in plants by mapping cell water dynamics with terahertz laser feedback interferometry. IEEE Transactions on Terahertz Science and Technology, 14 (5), 665-674. doi: 10.1109/tthz.2024.3412826
2024
Conference Publication
Variability in plant cell water dynamics as a genetic discriminatory method using terahertz quantum cascade laser-based laser feedback interferometry
Kundu, Urbi, Tornainen, Jari, Bertling, Karl, Kashyap, Mayuri, Singh, Khushboo, Donose, Bogdan, Gillespie, Tim, Indjin, Dragan, Li, Lianhe, Linfield, Edmund, Davies, Alexander, Dean, Paul, Bandyopadhyay, Aparajita, Sengupta, Amartya and Rakic, Aleksandar (2024). Variability in plant cell water dynamics as a genetic discriminatory method using terahertz quantum cascade laser-based laser feedback interferometry. Conference on Photonic Technologies in Plant and Agricultural Science, San Francisco, CA United States, 31 January 2024. Bellingham, WA United States: SPIE. doi: 10.1117/12.3002438
2024
Journal Article
Terahertz in vivo imaging of human skin: toward detection of abnormal skin pathologies
Qi, X., Bertling, K., Torniainen, J., Kong, F., Gillespie, T., Primiero, C., Stark, M. S., Dean, P., Indjin, D., Li, L. H., Linfield, E. H., Davies, A. G., Brünig, M., Mills, T., Rosendahl, C., Soyer, H. P. and Rakić, A. D. (2024). Terahertz in vivo imaging of human skin: toward detection of abnormal skin pathologies. APL Bioengineering, 8 (1) 016117, 016117. doi: 10.1063/5.0190573
2023
Journal Article
Refractive index of human articular cartilage varies with tissue structure and composition
Khan, Bilour, Nippolainen, Ervin, Shahini, Fatemeh, Torniainen, Jari, Mikkonen, Santtu, Nonappa, Popov, Alexey, Töyräs, Juha and Afara, Isaac (2023). Refractive index of human articular cartilage varies with tissue structure and composition. Journal of the Optical Society of America A, 40 (12), 2205-2214. doi: 10.1364/josaa.498722
2023
Journal Article
Coherent Terahertz laser feedback interferometry for hydration sensing in leaves
Kashyap, Mayuri, Torniainen, Jari, Bertling, Karl, Kundu, Urbi, Singh, Khushboo, Donose, Bogdan, Gillespie, Tim, Lim, Yah Leng, Indjin, Dragan, Li, Lian He, Linfield, Edmund, Davies, Giles, Dean, Paul, Smith, Millicent, Chapman, Scott, Bandyopadhyay, Aparajita, Sengupta, Amartya and Rakic, Aleksandar (2023). Coherent Terahertz laser feedback interferometry for hydration sensing in leaves. Optics Express, 31 (15), 23877-23888. doi: 10.1364/oe.490217
Supervision
Availability
- Dr Jari Torniainen is:
- Available for supervision
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Supervision history
Completed supervision
-
2025
Doctor Philosophy
Raman spectroscopy for diagnostic tissue assessment
Associate Advisor
Other advisors: Professor Juha Toyras, Professor Aleksandar Rakic
Media
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