Skip to menu Skip to content Skip to footer
Dr Karl Bertling
Dr

Karl Bertling

Email: 
Phone: 
+61 7 336 53840

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

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

149 works between 2004 and 2025

21 - 40 of 149 works

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.

Terahertz nanoscopy

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

Near-field nanoscopy of terahertz collective excitations for silicon-based quantum technologies

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

Terahertz quantum cascade laser feedback imaging for cultural heritage preservation

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

Collimated beam formation in 3D acoustic sonic crystals

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

Detecting genetic variation in plants by mapping cell water dynamics with terahertz laser feedback interferometry

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

Variability in plant cell water dynamics as a genetic discriminatory method using terahertz quantum cascade laser-based laser feedback interferometry

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

Comprehensive spectral and imaging studies of marble to assess the environmental damage using ULF Raman and THz absorption studies

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

Coherent Terahertz laser feedback interferometry for hydration sensing in leaves

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

Terahertz nanospectroscopy of plasmon polaritons for the evaluation of doping in quantum devices

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

Comparison of physical and system factors impacting hydration sensing in leaves using terahertz time-domain and quantum cascade laser feedback interferometry imaging

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

Terahertz imaging of human skin pathologies using laser feedback interferometry with quantum cascade lasers

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

Frequency combs in quantum cascade lasers: an overview of modeling and experiments

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.

Terahertz nanoscopy: a non-destructive characterization tool for nanomaterials and nanostructures

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.

Hydration imaging with THz Quantum Cascade Lasers: Towards Precision Agriculture

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

Feedback regimes of LFI sensors: experimental investigations

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

Self-pulsations in terahertz quantum cascade lasers under strong optical feedback: the effect of multiple reflections in the external cavity

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

Melimine-modified 3D-printed polycaprolactone scaffolds for the prevention of biofilm-related biomaterial infections

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.

Challenges and advances in THz scattering SNOM

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

Probing peptide nanowire conductivity by THz nanoscopy

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

Study of moisture content in leaves through regression analysis of Terahertz images

Funding

Current funding

  • 2024 - 2025
    Terahertz Quantum Technology for Melanoma Detection and Progression
    Critical Technologies Challenge Program: Round 1 - Stage 1 Feasibility
    Open grant

Past funding

  • 2021 - 2024
    Interaction of light with tissues: A hyper-spectral approach
    ARC Discovery Projects
    Open grant
  • 2019
    Multimode optical waveguide characterisation facility
    UQ Major Equipment and Infrastructure
    Open grant
  • 2018
    Imaging in the nano-scale age: terahertz and millimetre wave microanalysis
    UQ Major Equipment and Infrastructure
    Open grant
  • 2016
    Millimetre Waves for Imaging and Sensing
    UQ Major Equipment and Infrastructure
    Open grant

Supervision

Availability

Dr Karl Bertling is:
Available for supervision

Before you email them, read our advice on how to contact a supervisor.

Supervision history

Current supervision

  • Doctor Philosophy

    Engineering the Next Generation of Broadband Terahertz Technologies

    Associate Advisor

    Other advisors: Dr Tina Qi, Professor Aleksandar Rakic

  • Doctor Philosophy

    Investigation and design of passive modules for Terahertz Quantum Cascade Lasers (QCL) imaging system

    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

    Application of non-contact THz spectroscopic imaging towards preservation of heritage structures in India

    Associate Advisor

    Other advisors: Professor Aleksandar Rakic

Completed supervision

Media

Enquiries

For media enquiries about Dr Karl Bertling's areas of expertise, story ideas and help finding experts, contact our Media team:

communications@uq.edu.au