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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

161 works between 2004 and 2026

41 - 60 of 161 works

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

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

Rapid genetic discrimination in plants through terahertz spectroscopy

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

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.

Advances and challenges in THz scattering SNOM

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.

New Applications of THz Waves in Precision Agriculture

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.

Self-pulsations in re-injected terahertz quantum cascade lasers

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.

Near-field terahertz nanoscopy of coplanar microwave resonators

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

Terahertz quantum cascade laser under optical feedback: effects of laser self-pulsations on self-mixing signals

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

Terahertz imaging with self-pulsations in quantum cascade lasers under optical feedback

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

Quantifying relative moisture content in dielectric models using CW-THz spectroscopy and supervised machine learning regression

Funding

Current funding

  • 2026 - 2029
    Terahertz technology for cultural heritage testing: a Taj Mahal case study
    ARC Discovery Projects
    Open grant
  • 2025 - 2026
    Terahertz virtual skin biopsy: Quantum cascade laser imaging of early melanoma
    Australia's Economic Accelerator Ignite Grants
    Open grant

Past funding

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

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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

Media

Enquiries

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