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
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
2017
Journal Article
Surface roughness characterisation using optical feedback interferometry
Herbert, Jeremy, Bertling, Karl, Taimre, Thomas, Rakic, Aleksandar and Wilson, Stephen J. (2017). Surface roughness characterisation using optical feedback interferometry. Electronics Letters, 53 (4), 268-270. doi: 10.1049/el.2016.4134
2017
Conference Publication
Dynamic modelling of coupled-cavity Terahertz Quantum Cascade lasers with optical feedback
Xiaoqiong, Qi , Agnew, Gary , Kundu, Iman , Taimre, Thomas , Lim, Yah Leng , Bertling, Karl , Han, She , Dean, Paul , Grier, Andrew , Valavanis, Alexander , Linfield, Edmund , Davies, A. Giles , Indjin, Dragan and Rakic, Aleksandar (2017). Dynamic modelling of coupled-cavity Terahertz Quantum Cascade lasers with optical feedback. ITQW 2017: 14th International Conference on Intersubband Transitions in Quantum Wells, Sands Expo and Convention Center, Singapore, 11-15 September 2017.
2016
Journal Article
Temperature dependent high speed dynamics of terahertz quantum cascade lasers
Agnew, Gary, Grier, Andrew, Taimre, Thomas, Bertling, Karl, Lim, Yah Leng, Ikonic, Zoran, Dean, Paul, Valavanis, Alexander, Harrison, Paul, Indjin, Dragan and Rakic, Aleksandar D. (2016). Temperature dependent high speed dynamics of terahertz quantum cascade lasers. IEEE Journal of Selected Topics in Quantum Electronics, 23 (99) 7792643, 1-9. doi: 10.1109/JSTQE.2016.2638539
2016
Journal Article
Origin of terminal voltage variations due to self-mixing in terahertz frequency quantum cascade lasers
Grier, Andrew, Dean, Paul, Valavanis, Alexander, Keeley, James, Kundu, Iman, Cooper, Jonathan D., Agnew, Gary, Taimre, Thomas, Lim, Yah Leng, Bertling, Karl, Rakic, Aleksander D., Li, Lianhe H., Harrison, Paul, Linfield, Edmund, Ikonic, Zoran, Davies, A. Giles and Indjin, Dragan (2016). Origin of terminal voltage variations due to self-mixing in terahertz frequency quantum cascade lasers. Optics Express, 24 (19), 21948-21956. doi: 10.1364/OE.24.021948
2016
Journal Article
Concurrent reflectance confocal microscopy and laser doppler flowmetry to improve skin cancer imaging: a Monte Carlo model and experimental validation
Mowla, Alireza, Taimre, Thomas, Lim, Yah Leng, Bertling, Karl, Wilson, Stephen J., Prow, Tarl W., Soyer, H. Peter and Rakic, Aleksandar D. (2016). Concurrent reflectance confocal microscopy and laser doppler flowmetry to improve skin cancer imaging: a Monte Carlo model and experimental validation. Sensors, 16 (9) 1411, 1411. doi: 10.3390/s16091411
2016
Journal Article
Model for a pulsed terahertz quantum cascade laser under optical feedback
Agnew, Gary, Grier, Andrew, Taimre, Thomas, Lim, Yah Leng, Bertling, Karl, Ikonić, Zoran, Valavanis, Alexander, Dean, Paul, Cooper, Jonathan, Khanna, Suraj P., Lachab, Mohammad, Linfield, Edmund H., Davies, A. Giles, Harrison, Paul, Indjin, Dragan and Rakić, Aleksandar D. (2016). Model for a pulsed terahertz quantum cascade laser under optical feedback. Optics Express, 24 (18), 20554-20570. doi: 10.1364/OE.24.020554
2016
Journal Article
A compact laser imaging system for concurrent reflectance confocal microscopy and laser doppler flowmetry
Mowla, Alireza, Taimre, Thomas, Lim, Yah Leng, Bertling, Karl, Wilson, Stephen J., Prow, Tarl W. and Rakic, Aleksandar D. (2016). A compact laser imaging system for concurrent reflectance confocal microscopy and laser doppler flowmetry. IEEE Photonics Journal, 8 (5) 3900709, 1-9. doi: 10.1109/JPHOT.2016.2599014
2016
Journal Article
Microwave head imaging system using analogue fibre-optic link for improved detection and localisation
Mohammed, B. J., Bertling, K., Abbosh, A. M. and Rakic, A. D. (2016). Microwave head imaging system using analogue fibre-optic link for improved detection and localisation. Electronics Letters, 52 (16), 1366-1368. doi: 10.1049/el.2016.1502
2016
Journal Article
Simple Electrical Modulation Scheme for Laser Feedback Imaging
Bertling, Karl, Taimre, Thomas, Agnew, Gary, Lim, Yah Leng, Dean, Paul, Indjin, Dragan, Hofling, Sven, Weih, Robert, Kamp, Martin, von Edlinger, Michael, Koeth, Johannes and Rakic, Aleksandar (2016). Simple Electrical Modulation Scheme for Laser Feedback Imaging. IEEE Sensors Journal, 16 (7) 7350095, 1937-1942. doi: 10.1109/JSEN.2015.2507184
2016
Journal Article
Laser feedback interferometry as a tool for analysis of granular materials at terahertz frequencies: towards imaging and identification of plastic explosives
Han, She, Bertling, Karl, Dean, Paul, Keeley, James, Burnett, Andrew D., Lim, Yah Leng, Khanna, Suraj P., Valavanis, Alexander, Linfield, Edmund H., Davies, A. Giles, Indjin, Dragan, Taimre, Thomas and Rakic, Aleksandar (2016). Laser feedback interferometry as a tool for analysis of granular materials at terahertz frequencies: towards imaging and identification of plastic explosives. Sensors, 16 (3) 352, 352+. doi: 10.3390/s16030352
2016
Conference Publication
Laser feedback interferometry with THz QCLs: a new technology for imaging and materials analysis
Rakić, Aleksandar D., Agnew, Gary, Qi, Xiaoqiong, Taimre, Thomas, Grier, Andrew, Lim, Yah Leng, Bertling, Karl, Ikonić, Zoran, Valavanis, Alexander, Dean, Paul, Cooper, Jonathan, Khanna, Suraj P., Lachab, Mohammad, Wilson, Stephen J., Linfield, Edmund H., Davies, A. Giles, Harrison, Paul and Indjin, Dragan (2016). Laser feedback interferometry with THz QCLs: a new technology for imaging and materials analysis. The 8th International Symposium on Ultrafast Phenomena and Terahertz Waves, Chongqing, China, 10–12 October 2016. Washington, DC, United States: Optical Society of America. doi: 10.1364/ISUPTW.2016.IW4A.1
2016
Conference Publication
Prediction of Turn-on Delay in a Pulsed Terahertz Quantum Cascade Laser
Agnew, G., Grier, A., Taimre, T., Lim, Y. L., Bertling, K., Ikonic, Z., Valavanis, A., Dean, P., Cooper, J., Khanna, S. P., Lachab, M., Linfield, E. H., Davies, A. G., Harrison, P., Indjin, D. and Rakić, A. D. (2016). Prediction of Turn-on Delay in a Pulsed Terahertz Quantum Cascade Laser. Conference on Optoelectronic and Microelectronic Materials and Devices (COMMAD 2016), Sydney, Australia, 12-14 December 2016.
Supervision
Availability
- Dr Karl Bertling is:
- Available for supervision
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Supervision history
Current supervision
-
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
-
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
Completed supervision
-
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
Enquiries
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