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
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
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
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
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
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
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
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
Engineering the Next Generation of Broadband Terahertz Technologies
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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