My research focuses on the development (design, construction, characterisation, and implementation) of cutting-edge compact optical instruments that harness the latest photonic technologies, originally for astronomical applications. More recently, I have been using techniques and methods I developed for astronomy to tackle a broader range of problems in academia and industry, specifically in remote earth observation and agriculture.
Project title | Research student |
---|---|
Exoplanet detection via TOLIMAN mission. | Md Redyan AHMED |
Wavefront Sensing with Photonic Lanterns | Teodor MALENDEVYCH |
Publications
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Journals
- Rahme, M., Tuthill, P., Betters, C., Large, M., Leon-Saval, S. (2024). A new gas detection technique through cross-correlation with a complex aperiodic FBG. Scientific Reports, 14(1). [More Information]
- Betters, C., Leon-Saval, S., Bland-Hawthorn, J. (2024). Photonic comb: a stabilized single-mode fiber etalon for wavelength calibration. Applied Optics, 16(14), 14-20.
- Mao, Y., Betters, C., Garske, S., Randle, J., Wong, K., Cairns, I., Evans, B. (2023). A Customisable Data Acquisition System for Open-Source Hyperspectral Imaging. Sensors, 23(20). [More Information]
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Conferences
- Lin, J., Vievard, S., Jovanovic, N., Norris, B., Fitzgerald, M., Betters, C., Gatkine, P., Guyon, O., Kim, Y., Leon-Saval, S., et al (2022). Experimental measurements of AO-fed photonic lantern coupling efficiencies. Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V 2022, Montreal: Society of Photo-Optical Instrumentation Engineers (SPIE). [More Information]
- Alsalem, N., Betters, C., Leon-Saval, S., Cairns, I. (2021). CUAVA InGaAs-based, Short Wavelength InfraRed (SWIR) instrument for atmospheric reconnaissance: preliminary design. 2020 International Conference on Space Optics, ICSO 2020, Bellingham: Society of Photo-Optical Instrumentation Engineers (SPIE). [More Information]
- Norris, B., Wei, J., Betters, C., Wong, A., Leon-Saval, S. (2020). All-fibre focal-plane wavefront sensor. 2020 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR 2020), Sydney: Optical Society of America. [More Information]
show 20 more
Expand all
2024
- Rahme, M., Tuthill, P., Betters, C., Large, M., Leon-Saval, S. (2024). A new gas detection technique through cross-correlation with a complex aperiodic FBG. Scientific Reports, 14(1). [More Information]
- Betters, C., Leon-Saval, S., Bland-Hawthorn, J. (2024). Photonic comb: a stabilized single-mode fiber etalon for wavelength calibration. Applied Optics, 16(14), 14-20.
2023
- Mao, Y., Betters, C., Garske, S., Randle, J., Wong, K., Cairns, I., Evans, B. (2023). A Customisable Data Acquisition System for Open-Source Hyperspectral Imaging. Sensors, 23(20). [More Information]
- Lin, J., Deo, V., Lozi, J., Vievard, S., Levinstein, D., Sallum, S., Jovanovic, N., Fitzgerald, M., Xin, Y., Kim, Y., Norris, B., Betters, C., Leon-Saval, S., et al (2023). Real-time Experimental Demonstrations of a Photonic Lantern Wave-front Sensor. Astrophysical Journal Letters, 959(2), L34. [More Information]
- Alsalem, N., Betters, C., Mao, Y., Cairns, I., Leon-Saval, S. (2023). RedEye-1: a compact SWIR hyperspectral imager for observation of atmospheric methane and carbon dioxide. OSA Continuum, 2(11), 2333-2347. [More Information]
2022
- Lin, J., Vievard, S., Jovanovic, N., Norris, B., Fitzgerald, M., Betters, C., Gatkine, P., Guyon, O., Kim, Y., Leon-Saval, S., et al (2022). Experimental measurements of AO-fed photonic lantern coupling efficiencies. Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V 2022, Montreal: Society of Photo-Optical Instrumentation Engineers (SPIE). [More Information]
- Mao, Y., Betters, C., Evans, B., Artlett, C., Leon-Saval, S., Garske, S., Cairns, I., Cocks, T., Winter, R., Dell, T. (2022). OpenHSI: A Complete Open-Source Hyperspectral Imaging Solution for Everyone. Remote Sensing, 14(9). [More Information]
- Norris, B., Betters, C., Wei, J., Yerolatsitis, S., Amezcua-Correa, R., Leon-Saval, S. (2022). Optimal broadband starlight injection into a single-mode fibre with integrated photonic wavefront sensing. Optics Express, 30(19), 34908-34917. [More Information]
2021
- Anagnos, T., Trappen, M., Kuo Tiong, B., Feger, T., Yerolatsitis, S., Harris, R., Lozi, J., Jovanovic, N., Birks, T., Vievard, S., Leon-Saval, S., Norris, B., Betters, C., et al (2021). 3D-M3: high-spatial-resolution spectroscopy with extreme AO and 3D-printed micro-lenslets. Applied Optics, 60(19), D108-D121. [More Information]
- Alsalem, N., Betters, C., Leon-Saval, S., Cairns, I. (2021). CUAVA InGaAs-based, Short Wavelength InfraRed (SWIR) instrument for atmospheric reconnaissance: preliminary design. 2020 International Conference on Space Optics, ICSO 2020, Bellingham: Society of Photo-Optical Instrumentation Engineers (SPIE). [More Information]
- Sweeney, D., Norris, B., Tuthill, P., Scalzo, R., Wei, J., Betters, C., Leon-Saval, S. (2021). Learning the lantern: neural network applications to broadband photonic lantern modeling. Journal of Astronomical Telescopes, Instruments, and Systems, 7(2), 028007-1-028007-20. [More Information]
show 3 more
2020
- Betters, C., Bland-Hawthorn, J., Sukkarieh, S., Gris-Sanchez, I., Leon-Saval, S. (2020). A Multi-Core Fibre Photonic Lantern-Based Spectrograph for Raman Spectroscopy. IEEE Photonics Technology Letters, 32(7), 395-398. [More Information]
- Norris, B., Wei, J., Betters, C., Wong, A., Leon-Saval, S. (2020). All-fibre focal-plane wavefront sensor. 2020 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR 2020), Sydney: Optical Society of America. [More Information]
- Norris, B., Wei, J., Betters, C., Wong, A., Leon-Saval, S. (2020). An all-photonic focal-plane wavefront sensor. Nature Communications, 11(1), 1-9. [More Information]
show 4 more
2019
- Tedder, S., Vyhnalek, B., Leon-Saval, S., Betters, C., Floyd, B., Staffa, J., Lafon, R. (2019). Single-Mode Fiber and Few-Mode Fiber Photonic Lanterns performance evaluated for use in a Scalable Real-time Photon Counting Ground Receiver. Free-Space Laser Communications XXXI 2019, Bellingham: Society of Photo-Optical Instrumentation Engineers (SPIE). [More Information]
2018
- Kos, J., Bland-Hawthorn, J., Betters, C., Leon-Saval, S., Asplund, M., Buder, S., Casey, A., D’Orazi, V., De Silva, G., Freeman, K., Lewis, G., Sharma, S., Hayden, M., et al (2018). Holistic spectroscopy: Complete reconstruction of a wide-field, multiobject spectroscopic image using a photonic comb. Monthly Notices of the Royal Astronomical Society, 480(4), 5475-5494. [More Information]
2017
- Jovanovic, N., Cvetojevic, N., Norris, B., Betters, C., Schwab, C., Lozi, J., Guyon, O., Gross, S., Martinache, F., Tuthill, P., et al (2017). Demonstration of an efficient, photonic-based astronomical spectrograph on an 8-m telescope. Optics Express, 25(15), 17753-17766. [More Information]
- Leon-Saval, S., Betters, C., Salazar Gil, J., Min, S., Gris-Sanchez, I., Birks, T., Lawrence, J., Haynes, R., Haynes, D., Roth, M., Bland-Hawthorn, J., et al (2017). Divide and conquer: An efficient solution to highly multimoded photonic lanterns from multicore fibres. Optics Express, 25(15), 17530-17540. [More Information]
- Bland-Hawthorn, J., Kos, J., Betters, C., De Silva, G., O'Byrne, J., Patterson, R., Leon-Saval, S. (2017). Mapping the aberrations of a wide-field spectrograph using a photonic comb. Optics Express, 25(14), 15614-15623. [More Information]
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2016
- Jovanovic, N., Cvetojevic, N., Schwab, C., Norris, B., Lozi, J., Gross, S., Betters, C., Singh, G., Guyon, O., Martinache, F., Tuthill, P., et al (2016). Efficiently feeding single-mode fiber photonic spectrographs with an extreme adaptive optics system: On-sky characterization and preliminary spectroscopy. Ground-Based and Airborne Instrumentation for Astronomy VI, Bellingham: Society of Photo-Optical Instrumentation Engineers (SPIE). [More Information]
- Betters, C., Hermouet, M., Blanc, T., Colless, J., Bland-Hawthorn, J., Kos, J., Leon-Saval, S. (2016). Low cost photonic comb for sub-m/s wavelength calibration. Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, Bellingham: Society of Photo-Optical Instrumentation Engineers (SPIE). [More Information]
- Betters, C., Murray, A., Bland-Hawthorn, J., Leon-Saval, S. (2016). Precision radial velocities with inexpensive compact spectrographs. Ground-Based and Airborne Instrumentation for Astronomy VI, Bellingham: Society of Photo-Optical Instrumentation Engineers (SPIE). [More Information]
2014
- Betters, C., Leon-Saval, S., Bland-Hawthorn, J., Richards, S., Birks, T., Gris-Sanchez, I. (2014). PIMMS échelle: The next generation of compact diffraction limited spectrographs for arbitrary input beams. Ground-Based and Airborne Instrumentation for Astronomy V, : SPIE. [More Information]
- Ellis,, S., Saunders,, W., Betters, C., Croom, S. (2014). The problem of scattering in fibre-fed VPH spectrographs and possible solutions. Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, : SPIE.
2013
- Betters, C., Leon-Saval, S., Robertson, J., Bland-Hawthorn, J. (2013). Beating the classical limit: A diffraction-limited spectrograph for an arbitrary input beam. Optics Express, 21(22), 26103-26112. [More Information]
2012
- Betters, C., Leon-Saval, S., Bland-Hawthorn, J., Robertson, J. (2012). Demonstration and design of a compact diffraction limited spectrograph. Ground-Based and Airborne Instrumentation for Astronomy IV, Bellingham: SPIE Proceedings. [More Information]
- Funamoto, J., Wu, X., Cairns, I., Bland-Hawthorn, J., Betters, C., Fogarty, L., Leon-Saval, S., Monger, A., Xiao, S. (2012). Engineering i-INSPIRE - a Pico-Satellite from Australia. 11th Australian Space Science Conference, Sydney: National Space Society of Australia Ltd.
- Cvetojevic, N., Jovanovic, N., Betters, C., Lawrence, J., Ellis, S., Robertson, J., Bland-Hawthorn, J. (2012). First starlight spectrum captured using an integrated photonic micro-spectrograph. Astronomy & Astrophysics, 544, 1-4. [More Information]
show 7 more
2011
- Cvetojevic, N., Jovanovic, N., Betters, C., Lawrence, J., Bland-Hawthorn, J., Withford, M. (2011). Technology for Telescope Integration of the Integrated Photonic Spectrograph Prototype. International Quantum Electronics Conference (IQEC) and Conference on Lasers and Electro-Optics (CLEO) Pacific Rim 2011, Sydney, Australia: Australian Optical Society.
2010
- Lawrence, J., Betters, C., Bland-Hawthorn, J., Cvetojovic, N., Ellis, S., Haynes, R., Horton, A., Jovanovica, N., Leon-Saval, S., Robertson, J. (2010). Development of an array-waveguide grating astronomical spectrograph. Frontiers in Optics 2010/Laser Science XXVI Conference, Washington, DC: Optical Society of America. [More Information]
- Bland-Hawthorn, J., Lawrence, J., Robertson, J., Campbell, S., Pope, B., Betters, C., Leon-Saval, S., Birks, T., Haynes, R., Cvetojevic, N., et al (2010). PIMMS: photonic integrated multimode microspectrograph. SPIE Conference on Ground-based and Airborne Instrumentation for Astronomy III, USA: Society of Photo-Optical Instrumentation Engineers (SPIE).
Selected Grants
2017
- Advanced Photonics Sensors for Food Safety in Autonomous Robotic Platforms, Leon-Saval S, Bland-Hawthorn J, Betters C, DVC Research/Sydney Research Excellence Initiative 2020 (SREI)