Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Christopher H. Betters"'
Autor:
Yiwei Mao, Christopher H. Betters, Samuel Garske, Jeremy Randle, K. C. Wong, Iver H. Cairns, Bradley J. Evans
Publikováno v:
Sensors, Vol 23, Iss 20, p 8622 (2023)
Hyperspectral imagers, or imaging spectrometers, are used in many remote sensing environmental studies in fields such as agriculture, forestry, geology, and hydrology. In recent years, compact hyperspectral imagers were developed using commercial-off
Externí odkaz:
https://doaj.org/article/70d8b5326b2448d09378187675b6342f
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Adaptive optics wavefront sensors need to be in a pupil plane and are insensitive to certain wavefront-error modes. The authors present a wavefront sensor based on a photonic lantern fibre-mode-converter and deep learning, which can be placed at the
Externí odkaz:
https://doaj.org/article/bd51390b59664b129e272572b3b35df0
Autor:
Yiwei Mao, Christopher H. Betters, Bradley Evans, Christopher P. Artlett, Sergio G. Leon-Saval, Samuel Garske, Iver H. Cairns, Terry Cocks, Robert Winter, Timothy Dell
Publikováno v:
Remote Sensing, Vol 14, Iss 9, p 2244 (2022)
OpenHSI is an initiative to lower the barriers of entry and bring compact pushbroom hyperspectral imaging spectrometers to a wider audience. We present an open-source optical design that can be replicated with readily available commercial-off-the-she
Externí odkaz:
https://doaj.org/article/a82c3663aa6a408f875d80c22ff063ad
Autor:
Jonathan Lin, Sébastien B. Vievard, Nemanja Jovanovic, Barnaby R. M. Norris, Michael P. Fitzgerald, Christopher H. Betters, Pradip R. Gatkine, Olivier Guyon, Yoo Jung Kim, Sergio G. Leon-Saval, Julien Lozi, Dimitri P. Mawet, Steph Sallum, Yinzi Xin
Publikováno v:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95aa016a59cc17383031db0d400b0e3c
https://doi.org/10.1117/12.2630608
https://doi.org/10.1117/12.2630608
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Nature Communications
Nature Communications
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e666af1b733ab8036d0276144c36ed45
https://doaj.org/article/bd51390b59664b129e272572b3b35df0
https://doaj.org/article/bd51390b59664b129e272572b3b35df0
Autor:
Sergio G. Leon-Saval, Christopher H. Betters, Itandehui Gris-Sánchez, Salah Sukkarieh, Joss Bland-Hawthorn
Publikováno v:
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname
instname
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4efacafc295e264a1f17f025f59b67a1
https://doi.org/10.1109/lpt.2020.2976599
https://doi.org/10.1109/lpt.2020.2976599
Publikováno v:
International Conference on Space Optics — ICSO 2020.
We report the preliminary design of a new small-size remote sensing instrument operating in the Short Wavelength InfraRed (SWIR) domain of the spectrum (1.560µm to 1.700µm) to monitor, detect, and measure atmospheric Carbon Dioxide (CO_2) and Metha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61a2f354c0687c2bb4e6436ae0407cdc
https://doi.org/10.1117/12.2600239
https://doi.org/10.1117/12.2600239
Autor:
Sergio G. Leon-Saval, Caleb C. Squires, Christopher H. Betters, Guy Coleman, Michael J. Walsh
Publikováno v:
Frontiers in Agronomy, Vol 2 (2021)
Increasing concern for the ongoing availability and efficacy of herbicides is driving interest in the development of alternative physical and thermal weed control methods. Fortunately, improvements in weed detection through advancements in computing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc02cc2fc81bd2fbd16599b4e6c53a51
https://www.frontiersin.org/articles/10.3389/fagro.2020.601542/full
https://www.frontiersin.org/articles/10.3389/fagro.2020.601542/full
Autor:
Robert J. Harris, Matthias Blaicher, Mareike Trappen, Tim A. Birks, Christopher H. Betters, Barnaby Norris, Phillip Hottinger, Stephanos Yerolatsitis, Blaise C. Kuo Tiong, Sebastiaan Y. Haffert, Julien Lozi, Itandehui Gris-Sánchez, Christian Koos, Olivier Guyon, Tobias Feger, Sergio G. Leon-Saval, Sébastien Vievard, Andreas Quirrenbach, David W. Coutts, Nemanja Jovanovic, Yilin Xu, Christian Schwab, Theodoros Anagnos
Publikováno v:
Applied optics, 60 (19), D108-D121
By combining integral field spectroscopy with extreme adaptive optics, we are now able to resolve objects close to the diffraction limit of large telescopes, exploring new science cases. We introduce an integral field unit designed to couple light wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80159f99b1030dd6aabf6df65835151b
https://publikationen.bibliothek.kit.edu/1000135683
https://publikationen.bibliothek.kit.edu/1000135683
Autor:
Tim A. Birks, Oliver Sawodny, Sebastiaan Y. Haffert, Christopher H. Betters, Olivier Guyon, Yilin Xu, Blaise C. Kuo Tiong, David W. Coutts, Jörg-Uwe Pott, Philipp Hottinger, Pascal Maier, Matthias Blaicher, Sebastian Vievard, Christian Schwab, Barnaby Norris, Moritz Straub, Theodoros Anagnos, Philip L. Neureuther, Robert J. Harris, Christian Koos, Tobias Feger, Julien Lozi, Nemanja Jovanovic, Andreas Quirrenbach, Stephanos Yerolatsitis, Itandehui Gris-Sánchez, Sergio G. Leon-Saval, Michael J. Ireland, Adam D. Rains
Publikováno v:
Anagnos, T, Maier, P, Hottinger, P, Betters, C H, Feger, T, Leon-Saval, S G, Gris-Sanchez, I, Yerolatsitis, S, Lozi, J, Birks, T A, Vievard, S, Jovanovic, N, Rains, A D, Ireland, M J, Harris, R J, Kuo Tiong, B C, Guyon, O, Norris, B, Haffert, S Y, Blaicher, M, Xu, Y, Straub, M, Pott, J U, Sawodny, O, Neureuther, P L, Coutts, D W, Schwab, C, Koos, C & Quirrenbach, A 2020, An innovative integral field unit upgrade with 3D-printed micro-lenses for the RHEA at Subaru . in R Navarro & R Geyl (eds), Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV ., 114516Y, Proceedings of SPIE-The International Society for Optical Engineering, vol. 11451, SPIE, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV 2020, Virtual, Online, USA United States, 14/12/20 . https://doi.org/10.1117/12.2560626
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV
In the new era of Extremely Large Telescopes (ELTs) currently under construction, challenging requirements drive spectrograph designs towards techniques that efficiently use a facility's light collection power. Operating in the single-mode (SM) regim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee43948d59987914b6f33968eb96ac87
https://doi.org/10.1117/12.2560626
https://doi.org/10.1117/12.2560626