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
2021
Conference Publication
Sub-surface damage detection in marble structures using THz time domain and laser feedback interferometric imaging techniques
Bandyopadhyay, Aparajita, Bertling, Karl, Garg, Diksha, Singh, Khushboo, Gillespie, Timothy, Lim, Yah Leng, Li, Lianhe, Dean, Paul, Indjin, Dragan, Linfield, Edmund, Giles Davies, A, Rakic, Aleksandar D. and Sengupta, Amartya (2021). Sub-surface damage detection in marble structures using THz time domain and laser feedback interferometric imaging techniques. SPIE Optical Metrology 2021, Online, 21 - 25 June 2021. Bellingham, WA United States: SPIE. doi: 10.1117/12.2592548
2021
Journal Article
Observation of optical feedback dynamics in single-mode terahertz quantum cascade lasers: Transient instabilities
Qi, Xiaoqiong, Bertling, Karl, Taimre, Thomas, Agnew, Gary, Lim, Yah Leng, Gillespie, Tim, Robinson, Ashley, Brünig, Michael, Demić, Aleksandar, Dean, Paul, Li, Lian He, Linfield, Edmund H., Davies, A. Giles, Indjin, Dragan and Rakić, Aleksandar D. (2021). Observation of optical feedback dynamics in single-mode terahertz quantum cascade lasers: Transient instabilities. Physical Review A, 103 (3) 033504, 033504-1-033504-7. doi: 10.1103/physreva.103.033504
2020
Journal Article
Laser feedback interferometry in multi-mode terahertz quantum cascade lasers
Qi, Xiaoqiong, Agnew, Gary, Taimre, Thomas, Han, She, Lim, Yah Leng, Bertling, Karl, Demic, Aleksandar, Dean, Paul, Indjin, Dragan and Rakic, Aleksandar (2020). Laser feedback interferometry in multi-mode terahertz quantum cascade lasers. Optics Express, 28 (10), 14246-14262. doi: 10.1364/oe.390433
2020
Journal Article
Corrections to “Temperature-Dependent High-Speed Dynamics of Terahertz Quantum Cascade Lasers”
Agnew, Gary, Indjin, Dragan, Rakic, Aleksandar D., Grier, Andrew, Taimre, Thomas, Bertling, Karl, Lim, Yah Leng, Ikonic, Zoran, Dean, Paul, Valavanis, Alexander and Harrison, Paul (2020). Corrections to “Temperature-Dependent High-Speed Dynamics of Terahertz Quantum Cascade Lasers”. IEEE Journal of Selected Topics in Quantum Electronics, 26 (2) 8910553, 1-1. doi: 10.1109/jstqe.2019.2954695
2020
Other Outputs
Data of the figures in "Laser feedback interferometry in multi-mode terahertz quantum cascade lasers"
Qi, Xiaoqiong, Agnew, Gary, Taimre, Thomas, Han, She, Lim, YahLeng, Bertling, Karl, Demic, Aleksandar, Dean, Paul, Indgin, Dragan and Rakic, Aleksdandar D. (2020). Data of the figures in "Laser feedback interferometry in multi-mode terahertz quantum cascade lasers". The University of Queensland. (Dataset) doi: 10.14264/uql.2020.392
2020
Conference Publication
Monitoring water dynamics in plants using laser feedback interferometry
Singh, Khushboo, Bandyopadhyay, Aparajita, Bertling, Karl, Lim, Yah Leng, Gillespie, Tim, Robinson, Ashley, Indjin, Dragan, Han, Yingjun, Li, Lianhe, Linfield, Edmund H., Davies, A. Giles, Dean, Paul, Rakic, Aleksandar D. and Sengupta, Amartya (2020). Monitoring water dynamics in plants using laser feedback interferometry. Conference on Lasers and Electro-Optics/Pacific Rim 2020, Sydney, Australia, 3–5 August 2020. Washington, DC, United States: OSA. doi: 10.1364/cleopr.2020.c12b_4
2019
Journal Article
Detection sensitivity of laser feedback interferometry using a terahertz quantum cascade laser
Keeley, J., Bertling, K., Rubino, P. L., Lim, Y. L., Taimre, T., Qi, X., Kundu, I., Li, L. H., Indjin, D., Rakić, A. D., Linfield, E. H., Davies, A. G., Cunningham, J. and Dean, P. (2019). Detection sensitivity of laser feedback interferometry using a terahertz quantum cascade laser. Optics Letters, 44 (13), 3314-3317. doi: 10.1364/ol.44.003314
2019
Journal Article
Acoustic flat lensing using an indefinite medium
Dubois, M., Perchoux, J., Vanel, A. L., Tronche, C., Achaoui, Y., Dupont, G., Bertling, K., Rakić, A. D., Antonakakis, T., Enoch, S., Abdeddaim, R., Craster, R. V. and Guenneau, S. (2019). Acoustic flat lensing using an indefinite medium. Physical Review B, 99 (10) 100301, 100301-1-100301-6. doi: 10.1103/physrevb.99.100301
2019
Journal Article
A low-profile wideband tri-polarized antenna
Nguyen-Trong, Nghia, Ta, Son Xuat, Ikram, Muhammad, Bertling, Karl and Abbosh, Amin M. (2019). A low-profile wideband tri-polarized antenna. IEEE Transactions on Antennas and Propagation, 67 (3) 8584891, 1946-1951. doi: 10.1109/TAP.2018.2889157
2019
Journal Article
Dual-modality confocal laser feedback tomography for highly scattering medium
Mowla, Alireza, Bertling, Karl, Wilson, Stephen J. and Rakic, Aleksandar D. (2019). Dual-modality confocal laser feedback tomography for highly scattering medium. IEEE Sensors Journal, 19 (15) 8685137, 1-1. doi: 10.1109/jsen.2019.2910122
2018
Journal Article
Publisher Correction: Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry
Keeley, James, Freeman, Joshua, Bertling, Karl, Lim, Yah Leng, Mohandas, Reshma A., Taimre, Thomas, Li, Lianhe H., Indjin, Dragan, Rakić, Aleksandar D., Linfield, Edmund H., Davies, A. Giles and Dean, Paul (2018). Publisher Correction: Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry. Scientific Reports, 8 (1) 17648, 17648. doi: 10.1038/s41598-018-36015-w
2018
Journal Article
Microparticle discrimination using laser feedback interferometry
Herbert, Jeremy, Bertling, Karl, Taimre, Thomas, Rakić, Aleksandar D. and Wilson, Stephen (2018). Microparticle discrimination using laser feedback interferometry. Optics Express, 26 (20), 25778-25792. doi: 10.1364/oe.26.025778
2018
Journal Article
Determining ethanol content of liquid solutions using laser feedback interferometry with a terahertz quantum cascade laser
Bertling, Karl, Han, She, Wu, Tengfei, Zhao, Chen, Lim, Yah Leng, Dean, Paul, Khanna, Suraj P., Indjin, Dragan, Linfield, Edmund H., Davies, A. Giles, Wilson, Stephen J., Taimre, Thomas and Rakic, Alexandar D. (2018). Determining ethanol content of liquid solutions using laser feedback interferometry with a terahertz quantum cascade laser. IEEE Sensors Letters, 2 (3) 8418845, 1-4. doi: 10.1109/lsens.2018.2858927
2018
Journal Article
Polarization-sensitive laser feedback interferometry for specular reflection removal
Mowla, Alireza, Du, Benjamin Wensheng, Taimre, Thomas, Bertling, Karl, Wilson, Stephen and Rakic, Aleksandar D. (2018). Polarization-sensitive laser feedback interferometry for specular reflection removal. Applied Optics, 57 (15), 4067-4074. doi: 10.1364/AO.57.004067
2018
Journal Article
Frequency tuning range control in pulsed terahertz quantum-cascade lasers: applications in interferometry
Agnew, Gary, Grier, Andrew, Taimre, Thomas, Bertling, Karl, Lim, Yah Leng, Ikonic, Zoran, Dean, Paul, Valavanis, Alexander, Indjin, Dragan and Rakic, Aleksandar D. (2018). Frequency tuning range control in pulsed terahertz quantum-cascade lasers: applications in interferometry. IEEE Journal of Quantum Electronics, 54 (2) 2300108, 1-8. doi: 10.1109/JQE.2018.2806948
2018
Journal Article
Confocal laser feedback microscopy for in-depth imaging applications
Mowla, A., Taimre, T., Bertling, K., Wilson, S. and Rakic, A. D. (2018). Confocal laser feedback microscopy for in-depth imaging applications. Electronics Letters, 54 (4), 196-198. doi: 10.1049/el.2017.4333
2018
Journal Article
New techniques for biological tissue imaging
Mowla, A., Taimre, T., Bertling, K., Wilson, S. and Rakic, A. (2018). New techniques for biological tissue imaging. Electronics Letters, 54 (4), 185-185. doi: 10.1049/el.2018.0308
2017
Journal Article
Confocal laser feedback tomography for skin cancer detection
Mowla, Alireza, Du, Benjamin Wensheng, Taimre, Thomas, Bertling, Karl, Wilson, Stephen J., Soyer, H. Peter and Rakic, Aleksandar (2017). Confocal laser feedback tomography for skin cancer detection. Biomedical Optics Express, 8 (9) #296050, 4037-4048. doi: 10.1364/BOE.8.004037
2017
Journal Article
Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry
Keeley, James, Freeman, Joshua, Bertling, Karl, Lim, Yah L., Mohandas, Reshma A., Taimre, Thomas, Li, Lianhe H., Indjin, Dragan, Rakic, Aleksandar, Linfeld, Edmund H., Davies, A. Giles and Dean, Paul (2017). Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry. Scientific Reports, 7 (1) 7236, 7236.1-7236.9. doi: 10.1038/s41598-017-07432-0
2017
Journal Article
Multi-spectral terahertz sensing: proposal for a coupled-cavity quantum cascade laser based optical feedback interferometer
Qi, Xiaoqiong, Agnew, Gary, Kundu, Iman, Taimre, Thomas, Lim, Yah Leng, Bertling, Karl, Dean, Paul, Grier, Andrew, Valavanis, Alexander, Linfield, Edmund H., Davies, A. Giles, Indjin, Dragan and Rakic, Aleksandar D. (2017). Multi-spectral terahertz sensing: proposal for a coupled-cavity quantum cascade laser based optical feedback interferometer. Optics Express, 25 (9), 10153-10165. doi: 10.1364/OE.25.010153
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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