Overview
Background
Dr. Karl Bertling has made significant contributions to pioneering imaging and sensing via laser feedback interferometry, spanning diverse laser technologies including sensors based on visible lasers, infrared surface-emitting lasers, mid-infrared inter-band cascade lasers, and terahertz quantum cascade lasers. His current research focus includes leveraging terahertz quantum cascade laser feedback interferometry for early melanoma detection and agri-photonics, as well as near-field terahertz and mid-infrared imaging of nanomaterials and nanostructures.
Availability
- Dr Karl Bertling is:
- Available for supervision
Fields of research
Qualifications
- Bachelor of Science in Physics, The University of Queensland
- Bachelor (Honours) of Engineering - Electrical, The University of Queensland
- Masters (Research) of Engineering - Electrical, The University of Queensland
- Doctor of Philosophy, The University of Queensland
Works
Search Professor Karl Bertling’s works on UQ eSpace
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, Jun 23-26, 2025. BELLINGHAM: SPIE. doi: 10.1117/12.3062581
2025
Journal Article
2025 Photonics for Agrifood roadmap: towards a sustainable and healthier planet
Smeesters, Lien, Venturini, Francesca, Paulus, Stefan, Mahlein, Anne-Katrin, Perpetuini, David, Cardone, Daniela, Merla, Arcangelo, Gac, Benjamin, Perrin, Stephane, Trégoat, Denis, Poffo, Luiz, Fournier, Antoine, Bonifazi, Giuseppe, Serranti, Silvia, Liao, Wenzhi, Osseiran, Noureddin, Vanwolleghem, Mathias, Peretti, Romain, Bandyopadhyay, Aparajita, Bertling, Karl, Parameswaran, Krishnan, Rakić, Aleksandar D., Sengupta, Amartya, Svanberg, Sune, Kujawinska, Małgorzata, Cozzolino, Daniel, Perez-Marin, Dolores, Entrenas de León, José A., Torres Rodríguez, Irina ... Mignani, Anna Grazia (2025). 2025 Photonics for Agrifood roadmap: towards a sustainable and healthier planet. Journal of Physics: Photonics, 7 (3) 032501, 032501-3. doi: 10.1088/2515-7647/adbea9
2025
Journal Article
Wood/PHAs biocomposites with mechanical properties comparable to conventional plastics: model-based prediction and experimental validation
Mathel, Vincent, Aziz, Shazed, Guo, Xiao, Bertling, Karl, Rakić, Aleksandar D., Heitzmann, Michael T. and Vandi, Luigi-Jules (2025). Wood/PHAs biocomposites with mechanical properties comparable to conventional plastics: model-based prediction and experimental validation. Composites Part A: Applied Science and Manufacturing, 194 108916, 108916. doi: 10.1016/j.compositesa.2025.108916
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
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
Conference Publication
Terahertz scattering-type scanning near-field optical microscopy of collective excitations for quantum technologies
Guo, Xiao, He, Xin, Degnan, Zachary, Chiu, Chun-Ching, Bertling, Karl, Donose, Bogdan, Steele, Julian A,, Solano, Eduardo, Brünig, Michael, Fedorov, Arkady, Jacobson, Peter and Rakić, Aleksandar D. (2024). Terahertz scattering-type scanning near-field optical microscopy of collective excitations for quantum technologies. 17th International Conference on Near-field Optics, Nanophotonics, and Related Techniques, Melbourne, VIC Australia, 2-6 December 2024.
2024
Conference Publication
Attocube Near-field Optical Nanoscopy Workshop --- Terahertz nanoscopy: advances, challenges, and the road ahead
Guo, Xiao, Bertling, Karl, Donose, Bogdan C., Brünig, Michael, Cernescu, Adrian, Govyadinov, Alexander A. and Rakić, Aleksandar D. (2024). Attocube Near-field Optical Nanoscopy Workshop --- Terahertz nanoscopy: advances, challenges, and the road ahead. 17th International Conference on Near-field Optics, Nanophotonics, and Related Techniques, Melbourne, VIC Australia, 2-6 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 near-field optical nanoscopy of collective excitations for quantum technologies
Guo, Xiao, Bertling, Karl, He, Xin, Degnan, Zachary, Chiu, Chun-Ching, Donose, Bogdan C., Steele, Julian A., Solano, Eduardo, Brünig, Michael, Fedorov, Arkady, Jacobson, Peter, Cernescu, Adrian, Govyadinov, Alexander A. and Rakić, Aleksandar D. (2024). Terahertz near-field optical nanoscopy of collective excitations for quantum technologies. 12th International Symposium on Ultrafast Phenomena and THz Waves, Guangzhou, China, 15-18 November 2024.
2024
Conference Publication
Near-field terahertz nanoscopy of superconducting quantum devices
Jacobson, Peter A., Guo, Xiao, Degnan, Zachary, Steele, Julian, Donose, Bogdan, Bertling, Karl, Fedorov, Arkady and Rakic, Aleksandar (2024). Near-field terahertz nanoscopy of superconducting quantum devices. Spintronics XVII, San Diego, CA, United States, 4 October 2024. SPIE. doi: 10.1117/12.3027536
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
Conference Publication
Terahertz absorption & Raman studies of environmental impact on marble
Chanda, Puspita, Bajaj, Naini, Bandyopadhyay, Aparajita, Sengupta, Amartya, Bertling, Karl and Rakic, A.D. (2024). Terahertz absorption & Raman studies of environmental impact on marble. 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-thz60956.2024.10697671
2024
Conference Publication
Terahertz nanoscopy
Guo, Xiao, Bertling, Karl, Brünig, Michael and Rakic, Aleksandar D. (2024). Terahertz nanoscopy. 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves, Perth, WA, Australia, 1-6 September 2024.
2024
Conference Publication
Near-field nanoscopy of terahertz collective excitations for silicon-based quantum technologies
Guo, Xiao, He, Xin, Degnan, Zachary, Chiu, Chun-Ching, Bertling, Karl, Donose, Bogdan C., Fedorov, Arkady, Jacobson, Peter and Rakić, Aleksandar D. (2024). Near-field nanoscopy of terahertz collective excitations for silicon-based quantum technologies. 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-thz60956.2024.10697801
2024
Journal Article
Collimated beam formation in 3D acoustic sonic crystals
Vanel, A.L., Dubois, M., Tronche, C., Fu, S., Wang, Y-T, Dupont, G., Rakić, A.D., Bertling, K., Abdeddaim, R., Enoch, S., Craster, R.V., Li, G., Guenneau, S. and Perchoux, J. (2024). Collimated beam formation in 3D acoustic sonic crystals. New Journal of Physics, 26 (7) 073021, 1-12. doi: 10.1088/1367-2630/ad5c94
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
2023
Conference Publication
Comprehensive spectral and imaging studies of marble to assess the environmental damage using ULF Raman and THz absorption studies
Chanda, Puspita, Singh, Khushboo, Aalam, Uzair, Bertling, Karl, Bandyopadhyay, Aparajita, Rakic, Aleksandar and Sengupta, Amartya (2023). Comprehensive spectral and imaging studies of marble to assess the environmental damage using ULF Raman and THz absorption studies. Conference on Optics for Arts, Architecture, and Archaeology (O3A) IX, Munich, Germany, 26-27 June 2023. Bellingham, WA, United States: S P I E - International Society for Optical Engineering. doi: 10.1117/12.2673785
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
Funding
Current funding
Past funding
Supervision
Availability
- Dr Karl Bertling is:
- Available for supervision
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Supervision history
Current supervision
-
Doctor Philosophy
Understanding contrast mechanisms of absorption spectroscopy of skin DNA solutions using biomolecule dynamics
Associate Advisor
Other advisors: Dr Tina Qi
-
Doctor Philosophy
Engineering Beam Profiles in Terahertz Quantum Cascade Lasers: An Electromagnetic Approach
Associate Advisor
Other advisors: Dr Tina Qi, Professor Aleksandar Rakic
-
Doctor Philosophy
Application of non-contact THz spectroscopic imaging towards preservation of heritage structures in India
Associate Advisor
Other advisors: Professor Aleksandar Rakic
Completed supervision
-
2025
Doctor Philosophy
Terahertz imaging using optical feedback in quantum cascade lasers
Associate Advisor
Other advisors: Dr Tina Qi, Professor Aleksandar Rakic
-
2022
Doctor Philosophy
Light-matter interactions at the nanoscale: a case for terahertz near-field spectroscopy in semiconductor nanodevices
Associate Advisor
Other advisors: Professor Aleksandar Rakic
Media
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