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
2023
Journal Article
Terahertz nanospectroscopy of plasmon polaritons for the evaluation of doping in quantum devices
Guo, Xiao, He, Xin, Degnan, Zachary, Chiu, Chun-Ching, Donose, Bogdan C., Bertling, Karl, Fedorov, Arkady, Rakić, Aleksandar D. and Jacobson, Peter (2023). Terahertz nanospectroscopy of plasmon polaritons for the evaluation of doping in quantum devices. Nanophotonics, 12 (10), 1865-1875. doi: 10.1515/nanoph-2023-0064
2023
Journal Article
Comparison of physical and system factors impacting hydration sensing in leaves using terahertz time-domain and quantum cascade laser feedback interferometry imaging
Singh, Khushboo, Bandyopadhyay, Aparajita, Bertling, Karl, Lim, Yah Leng, Gillespie, Tim, Indjin, Dragan, Li, Lianhe, Linfield, Edmund H., Davies, A. Giles, Dean, Paul, Rakić, Aleksandar D. and Sengupta, Amartya (2023). Comparison of physical and system factors impacting hydration sensing in leaves using terahertz time-domain and quantum cascade laser feedback interferometry imaging. Sensors, 23 (5) 2721, 2721. doi: 10.3390/s23052721
2023
Journal Article
Terahertz imaging of human skin pathologies using laser feedback interferometry with quantum cascade lasers
Qi, Xiaoqiong, Bertling, Karl, Stark, Mitchell S., Taimre, Thomas, Kao, Yung-Ching, Lim, Yah Leng, Han, She, O'Brien, Blake, Collins, Angus, Walsh, Michael, Torniainen, Jari, Gillespie, Timothy, Donose, Bogdan C., Dean, Paul, Li, Lian He, Linfield, Edmund H., Davies, A. Giles, Indjin, Dragan, Soyer, H. Peter and Rakic, Aleksandar D. (2023). Terahertz imaging of human skin pathologies using laser feedback interferometry with quantum cascade lasers. Biomedical Optics Express, 14 (4) 480615, 1393-1410. doi: 10.1364/boe.480615
2023
Journal Article
Frequency combs in quantum cascade lasers: an overview of modeling and experiments
Silvestri, Carlo, Qi, Xiaoqiong, Taimre, Thomas, Bertling, Karl and Rakić, Aleksandar D. (2023). Frequency combs in quantum cascade lasers: an overview of modeling and experiments. APL Photonics, 8 (2) 020902, 020902. doi: 10.1063/5.0134539
2022
Conference Publication
Terahertz nanoscopy: a non-destructive characterization tool for nanomaterials and nanostructures
Guo, Xiao, Bertling, Karl, Donose, Bogdan C., He, Xin, Degnan, Zach, Solemanifar, Armin, Zhang, Xueqin, Laycock, Bronwyn, Virdis, Bernardino, Fedorov, Arkady, Jacobson, Peter and Rakić, Aleksandar D. (2022). Terahertz nanoscopy: a non-destructive characterization tool for nanomaterials and nanostructures. The 2022 Conference on Optoelectronic and Microelectronic Materials and Devices, Adelaide, SA Australia, 11-16 December 2022.
2022
Conference Publication
Hydration imaging with THz Quantum Cascade Lasers: Towards Precision Agriculture
Bertling, K., Kashyap, M., Torniainen, J., Kundu, U., Singh, K., Gillespie, T., Lim, Y. L., Dean, P., Indjin, D., Han, Y., Li, L., Sengupta, A., Bandyopadhyay, A., Davies, A.G., Linfield, E. H. and Rakić, A. D. (2022). Hydration imaging with THz Quantum Cascade Lasers: Towards Precision Agriculture. Conference on Optoelectronlc and Microelectronic Materials and Devices, Adelaide, SA Australia, 11-16 December 2022.
2022
Journal Article
Feedback regimes of LFI sensors: experimental investigations
Bertling, Karl, Qi, Xiaoqiong, Taimre, Thomas, Lim, Yah Leng and Rakić, Aleksandar D. (2022). Feedback regimes of LFI sensors: experimental investigations. Sensors, 22 (22) 9001, 1-12. doi: 10.3390/s22229001
2022
Journal Article
Self-pulsations in terahertz quantum cascade lasers under strong optical feedback: the effect of multiple reflections in the external cavity
Qi, Xiaoqiong, Loh, Hui Yi, Taimre, Thomas, Bertling, Karl, Indjin, Dragan and Rakić, Aleksandar D. (2022). Self-pulsations in terahertz quantum cascade lasers under strong optical feedback: the effect of multiple reflections in the external cavity. Sensors, 22 (21) 8501, 1-14. doi: 10.3390/s22218501
2022
Journal Article
Melimine-modified 3D-printed polycaprolactone scaffolds for the prevention of biofilm-related biomaterial infections
Cometta, Silvia, Jones, Robert T., Juárez-Saldivar, Alfredo, Donose, Bogdan C., Yasir, Muhammad, Bock, Nathalie, Dargaville, Tim R., Bertling, Karl, Brünig, Michael, Rakić, Aleksandar D., Willcox, Mark and Hutmacher, Dietmar W. (2022). Melimine-modified 3D-printed polycaprolactone scaffolds for the prevention of biofilm-related biomaterial infections. ACS Nano, 16 (10), 16497-16512. doi: 10.1021/acsnano.2c05812
2022
Conference Publication
Challenges and advances in THz scattering SNOM
Rakic, Aleksandar D., Guo, Xiao, Bertling, Karl and Donose, Bogdan (2022). Challenges and advances in THz scattering SNOM. 2nd International nanoscale Analytics Workshop , Munich, Germany, 18-21 May 2022.
2022
Journal Article
Probing peptide nanowire conductivity by THz nanoscopy
Solemanifar, Armin, Guo, Xiao, Donose, Bogdan C, Bertling, Karl, Laycock, Bronwyn and Rakić, Aleksandar D. (2022). Probing peptide nanowire conductivity by THz nanoscopy. Nanotechnology, 33 (6) 065503, 065503. doi: 10.1088/1361-6528/ac34a6
2022
Conference Publication
Rapid genetic discrimination in plants through terahertz spectroscopy
Kundu, Urbi, Bandyopadhyay, Aparajita, Bertling, Karl, Rakić, Aleksandar D. and Sengupta, Amartya (2022). Rapid genetic discrimination in plants through terahertz spectroscopy. Conference on Terahertz Photonics II Part of SPIE Photonics Europe Conference, Electr Network, 3 April - 20 May 2022. Bellingham, WA, United States: S P I E - International Society for Optical Engineering. doi: 10.1117/12.2621415
2022
Conference Publication
Study of moisture content in leaves through regression analysis of Terahertz images
Kashyap, Mayuri, Bandyopadhyay, Aparajita, Bertling, Karl, Sengupta, Amartya and Rakic, Aleksandar D. (2022). Study of moisture content in leaves through regression analysis of Terahertz images. Conference on Optical Sensing and Detection VII Part of SPIE Photonics Europe Conference, Strasbourg, France, 3 - 7 April 2022. Bellingham, WA, United States: S P I E - International Society for Optical Engineering. doi: 10.1117/12.2621425
2021
Conference Publication
Advances and challenges in THz scattering SNOM
Guo, Xiao, Donose, Bogdan, Bertling, Karl, He, Xin, Degnan, Zach, Solemanifar, Armin, Laycock, Bronwyn, Fedorov, Arkady, Jacobson, Peter and Rakic, Aleksandar (2021). Advances and challenges in THz scattering SNOM. 8th Australian THz Workshop, Sydney, NSW Australia, 3 December 2021.
2021
Conference Publication
New Applications of THz Waves in Precision Agriculture
Bertling, Karl, Singh, Khushboo, Bandyopadhyay, Aparajita, Lim, Yah Leng, Gillespie, Tim, Indjin, Dragan, Li, Lianhe, Linfield, Edmund H., Davies, A. Giles, Paul Dean, Amartya Sengupta and Aleksandar D. Rakic (2021). New Applications of THz Waves in Precision Agriculture. 8th Australian THz Workshop, Sydney, NSW, Australia, 3 December 2021.
2021
Conference Publication
Self-pulsations in re-injected terahertz quantum cascade lasers
Qi, Xiaoqiong, Bertling, Karl, Taimre, Thomas, Lim, Yah Leng, Gillespie, Tim, Dean, Paul, Lian He Li, Edmund H. Linfield, A. Giles Davies, Dragan Indjin and Rakic, Aleksandar D. (2021). Self-pulsations in re-injected terahertz quantum cascade lasers. 8th Australian THz Workshop, Sydney, NSW Australia, 3 December 2021.
2021
Conference Publication
Near-field terahertz nanoscopy of coplanar microwave resonators
Jacobson, Peter, Guo, Xiao, He, Xin, Degnan, Zach, Donose, Bogdan, Bertling, Karl, Fedorov, Arkady and Rakic, Aleksandar (2021). Near-field terahertz nanoscopy of coplanar microwave resonators. Australian Institute of Physics Summer Meeting, Brisbane, QLD Australia, 6th-9th December 2021.
2021
Journal Article
Terahertz quantum cascade laser under optical feedback: effects of laser self-pulsations on self-mixing signals
Qi, Xiaoqiong, Bertling, Karl, Taimre, Thomas, Agnew, Gary, Leng Lim, Yah, Gillespie, Tim, Demić, Aleksandar, Dean, Paul, He Li, Lian, Linfield, Edmund H., Giles Davies, A., Indjin, Dragan and Rakić, Aleksandar D. (2021). Terahertz quantum cascade laser under optical feedback: effects of laser self-pulsations on self-mixing signals. Optics Express, 29 (24), 39885-39894. doi: 10.1364/oe.437861
2021
Journal Article
Terahertz imaging with self-pulsations in quantum cascade lasers under optical feedback
Qi, Xiaoqiong, Bertling, Karl, Taimre, Thomas, Lim, Yah Leng, Gillespie, Tim, Dean, Paul, Li, Lian He, Linfield, Edmund H., Davies, A. Giles, Indjin, Dragan and Rakić, Aleksandar D. (2021). Terahertz imaging with self-pulsations in quantum cascade lasers under optical feedback. APL Photonics, 6 (9) 091301, 091301. doi: 10.1063/5.0056487
2021
Conference Publication
Quantifying relative moisture content in dielectric models using CW-THz spectroscopy and supervised machine learning regression
Kashyap, Mayuri, Bandyopadhyay, Aparajita, Bertling, Karl, Sengupta, Amartya and Rakic, Aleksandar D. (2021). Quantifying relative moisture content in dielectric models using CW-THz spectroscopy and supervised machine learning regression. SPIE Optical Engineering + Applications, 2021 Terahertz Emitters, Receivers, and Applications XII, San Diego, CA United States, 1 - 5 August 2021. Bellingham, WA United States: SPIE. doi: 10.1117/12.2595006
Funding
Current funding
Past funding
Supervision
Availability
- Dr Karl Bertling is:
- Available for supervision
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Supervision history
Current supervision
-
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
-
Doctor Philosophy
Understanding contrast mechanisms of absorption spectroscopy of skin DNA solutions using biomolecule dynamics
Associate Advisor
Other advisors: Dr Tina Qi
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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