Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Harald Weller"'
Autor:
Matthew Hicks, Kimberley Lake, Vincent Isgar, Keith Barnes, Harald Weller, Chris Maxey, Ian M. Baker, Mark Herrington, Les Hipwood
Publikováno v:
Sensors, Systems, and Next-Generation Satellites XXIV.
SAPHIRA (320x256/24μm) is the first of a family of HgCdTe APD infrared sensors for NIR/SWIR sensing in low flux conditions for scientific applications. The paper will present the status of the latest developments of detectors suitable for a range of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ad05468032ae99a91831d6d9bbb7e77
https://doi.org/10.1117/12.2573915
https://doi.org/10.1117/12.2573915
Autor:
Frank Eisenhauer, Ian M. Baker, Manfred Meyer, J. Stegmeier, Gert Finger, D. Ives, G. Hechenblaikner, Domingo Alvarez, Leander Mehrgan, Harald Weller
Publikováno v:
International Conference on Space Optics — ICSO 2018.
Ground based near infrared adaptive optics as well as fringe tracking for coherent beam combination in optical interferometry required the development of high-speed sensors. Because of the high speed, a large analog bandwidth is needed. The short exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cee461d258a9f3ca49ba94d3b2281cbf
https://doi.org/10.1117/12.2536156
https://doi.org/10.1117/12.2536156
Autor:
Les Hipwood, Ian M. Baker, Chris Maxey, Vincent Isgar, Mark Herrington, Keith Barnes, Harald Weller
Publikováno v:
Image Sensing Technologies: Materials, Devices, Systems, and Applications VI.
Linear-mode avalanche photodiode arrays, LmAPDs, based on bandgap engineered HgCdTe, grown by Metal Organic Vapour Phase Epitaxy, MOVPE, can produce virtually noise-free infrared sensors. These are required for applications in big science, security a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6665b910b10768ff28a9b550a7273a1
https://doi.org/10.1117/12.2519830
https://doi.org/10.1117/12.2519830
Publikováno v:
High Energy, Optical, and Infrared Detectors for Astronomy VIII.
With gain-normalized dark currents reduced below 10 e-/s/pixel, HgCdTe Avalanche Photo-Diode arrays operated in linear mode are now widely accepted as the sensors of choice for adaptive optics wavefront sensing of natural guide stars in the wavelengt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0b99bf7330c4b517420893a2023d765
https://doi.org/10.1117/12.2314897
https://doi.org/10.1117/12.2314897
Autor:
D. Ives, Mark Downing, J. Stegmeier, Ian Baker, Gert Finger, Domingo Alvarez, Manfred Meyer, Leander Mehrgan, Harald Weller
Publikováno v:
International Conference on Space Optics — ICSO 2014.
Large format near infrared HgCdTe 2Kx2K and 4Kx4K MBE arrays have reached a level of maturity which meets most of the specifications required for near infrared (NIR) astronomy. The only remaining problem is the persistence effect which is device spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a7c17bd66f547a3e1309252f00f974a
https://doi.org/10.1117/12.2304270
https://doi.org/10.1117/12.2304270
Publikováno v:
International Conference on Space Optics — ICSO 2014.
Selex ES produces a wide range of infrared detectors from mercury cadmium telluride (MCT) and triglycine sulfate (TGS), and has supplied both materials into space programmes spanning a period of over 40 years. Current development activities that unde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::633c138c742f274cef9630a1b1ae637c
https://doi.org/10.1117/12.2304267
https://doi.org/10.1117/12.2304267
Autor:
Ian Baker, Domingo Alvarez, Christophe Dupuy, Derek Ives, Manfred Meyer, Leander Mehrgan, Harald Weller, Gert Finger, Joerg Stegmeier
Publikováno v:
Proceedings of the Adaptive Optics for Extremely Large Telescopes 5.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a247cb2bc19508f80cbecf6f8f03a1d
https://doi.org/10.26698/ao4elt5.0041
https://doi.org/10.26698/ao4elt5.0041
Progress on the characterization activities of new infrared detectors from Leonardo, UK at the UKATC
Autor:
Malcolm Jackson, Ian M. Baker, Les Hipwood, David Atkinson, Keith Barnes, Harald Weller, Ian Bryson, Ray Davis, Christopher J. Miller, Naidu Bezawada, Nick Shorrocks
Publikováno v:
SPIE Proceedings.
ESA has been funding the industry in Europe to bring the technologies together to manufacture high performance infrared detectors from near infrared (NIR) to very long wavelength infrared (VLWIR) detectors. The UK Astronomy Technology Centre (UKATC)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0d16528f2cec8bad57b9c79bbfad752
https://doi.org/10.1117/12.2232847
https://doi.org/10.1117/12.2232847
Sub-electron read noise and millisecond full-frame readout with the near infrared eAPD array SAPHIRA
Autor:
Gert Finger, Derek Ives, Christophe Dupuy, Manfred Meyer, Domingo Alvarez, Ian M. Baker, Leander Mehrgan, Harald Weller, J. Stegmeier
Publikováno v:
Adaptive Optics Systems V.
In 2007 ESO started a program at SELEX (now LEONARDO) to develop noiseless near infrared HgCdTe electron avalanche photodiode arrays (eAPD)[1][2][3]. This eAPD technology is only way to overcome the limiting CMOS noise barrier of near infrared sensor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bed3d44a1ee87eb075bad926dde59c4
https://doi.org/10.1117/12.2233079
https://doi.org/10.1117/12.2233079
Publikováno v:
SPIE Proceedings.
The fabrication of high performance infrared detectors using mercury cadmium telluride (MCT) grown on GaAs substrates by Metal Organic Vapour Phase Epitaxy (MOVPE) is now an established mature production process at Selex ES. Recent years have seen a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97170ffb0cb4cd8f7f8825ff43815759
https://doi.org/10.1117/12.2176546
https://doi.org/10.1117/12.2176546