Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Betters, Christopher H."'
Autor:
Norris, Barnaby, Gross, Simon, Leon-Saval, Sergio G., Betters, Christopher H., Bryant, Julia, Yu, Qingshan, Wang, Adeline Haobing, Douglass, Glen, Arcadi, Elizabeth, Sanny, Ahmed, Withford, Michael, Tuthill, Peter, Bland-Hawthorn, Joss
Publikováno v:
Appl. Opt. 63, 6393-6412 (2024)
Astrophotonics represents a cutting-edge approach in observational astronomy. This paper explores the significant advancements and potential applications of astrophotonics, highlighting how photonic technologies stand to revolutionise astronomical in
Externí odkaz:
http://arxiv.org/abs/2408.15541
Autor:
Sweeney, David, Norris, Barnaby R. M., Tuthill, Peter, Scalzo, Richard, Wei, Jin, Betters, Christopher H., Leon-Saval, Sergio G.
Publikováno v:
Journal of Astronomical Telescopes, Instruments, and Systems. 7(2) (2021) 1-20
Photonic lanterns allow the decomposition of highly multimodal light into a simplified modal basis such as single-moded and/or few-moded. They are increasingly finding uses in astronomy, optics and telecommunications. Calculating propagation through
Externí odkaz:
http://arxiv.org/abs/2108.13274
Autor:
Zhang, Bo, Sun, Jianfeng, Lao, Chenzhe, Betters, Christopher H, Argyros, Alexander, Zhou, Yu, Leon-Saval, Sergio G.
A multimode optical receiver for free space optical communications (FSOC) based on a photonic lantern and adaptive optics coherent beam combining (CBC) of the lantern's single-mode outputs is proposed and demonstrated for the first time. The use of o
Externí odkaz:
http://arxiv.org/abs/2105.09516
Autor:
Anagnos, Theodoros, Trappen, Mareike, Tiong, Blaise C. Kuo, Feger, Tobias, Yerolatsitis, Stephanos, Harris, Robert J., Lozi, Julien, Jovanovic, Nemanja, Birks, Tim A., Vievard, Sébastien, Guyon, Olivier, Gris-Sánchez, Itandehui, Leon-Saval, Sergio G., Norris, Barnaby, Haffert, Sebastiaan Y., Hottinger, Phillip, Blaicher, Matthias, Xu, Yilin, Betters, Christopher H., Koos, Christian, Coutts, David W., Schwab, Christian, Quirrenbach, Andreas
By combining IFS with ExAO we are now able to resolve objects close to the diffraction-limit of large telescopes, exploring new science cases. We introduce an IFU designed to couple light with a minimal platescale from the SCExAO facility at NIR wave
Externí odkaz:
http://arxiv.org/abs/2105.05538
Autor:
Norris, Barnaby R. M., Wei, Jin, Betters, Christopher H., Wong, Alison, Leon-Saval, Sergio G.
Publikováno v:
Nat Commun 11, 5335 (2020)
Adaptive optics (AO) is critical in astronomy, optical communications and remote sensing to deal with the rapid blurring caused by the Earth's turbulent atmosphere. But current AO systems are limited by their wavefront sensors, which need to be in an
Externí odkaz:
http://arxiv.org/abs/2003.05158
Autor:
Betters, Christopher H., Bland-Hawthorn, Joss, Sukkarieh, Salah, Gris-Sanchez, Itandehui, Leon-Saval, Sergio G.
We report on the development of a compact (volume $\approx$ 100\:cm$^3$), multimode diffraction-limited Raman spectrograph and probe designed to be compact as possible. The spectrograph uses `off the shelf' optics, a custom 3D-printed two-part housin
Externí odkaz:
http://arxiv.org/abs/2003.01243
Autor:
Kos, Janez, Bland-Hawthorn, Joss, Betters, Christopher H., Leon-Saval, Sergio, Asplund, Martin, Buder, Sven, Casey, Andrew R., D'Orazi, Valentina, de Silva, Gayandhi, Freeman, Ken, Lewis, Geraint, Lin, Jane, Martell, Sarah L., Schlesinger, Katharine, Sharma, Sanjib, Simpson, Jeffrey D., Zucker, Daniel, Zwitter, Tomaž, Hayden, Michael, Nataf, David M., Ting, Yuan-Sen
The primary goal of Galactic archaeology is to learn about the origin of the Milky Way from the detailed chemistry and kinematics of millions of stars. Wide-field multi-fibre spectrographs are increasingly used to obtain spectral information for huge
Externí odkaz:
http://arxiv.org/abs/1804.05851
Autor:
Mao, Yiwei1,2 (AUTHOR) sam.garske@sydney.edu.au, Betters, Christopher H.1,2 (AUTHOR) christopher.betters@sydney.edu.au, Garske, Samuel2 (AUTHOR) bradley.evans@une.edu.au, Randle, Jeremy3 (AUTHOR) jag@acfr.usyd.edu.au, Wong, K. C.2 (AUTHOR), Cairns, Iver H.1,2 (AUTHOR) iver.cairns@sydney.edu.au, Evans, Bradley J.2,4 (AUTHOR)
Publikováno v:
Sensors (14248220). Oct2023, Vol. 23 Issue 20, p8622. 16p.
Akademický článek
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Publikováno v:
Optics Express, Vol. 21, Issue 22, pp. 26103-26112 (2013)
We demonstrate a new approach to classical fiber-fed spectroscopy. Our method is to use a photonic lantern that converts an arbitrary (e.g. incoherent) input beam into N diffraction-limited outputs. For the highest throughput, the number of outputs m
Externí odkaz:
http://arxiv.org/abs/1310.4833