A near-infrared pyramid wavefront sensor for the MMT
A near-infrared pyramid wavefront sensor for the MMT
复制标题
用于 MMT 的近红外金字塔波前传感器
DOI:
10.1117/12.2629419
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Morzinski, Katie M.
中科院分区:
文献类型:
--
作者:
Taylor, Jacob;Sivanandam, Suresh;Anugu, Narsireddy;Butko, Adam;Chen, Shaojie;Durney, Olivier;Hardy, Tim;Lamb, Masen;Montoya, Manny;Morzinski, Katie M.
The MMTO Adaptive optics exoPlanet characterization System (MAPS) is an ongoing upgrade to the 6.5-meter MMT Observatory on Mount Hopkins in Arizona. MAPS includes an upgraded adaptive secondary mirror (ASM), upgrades to the ARIES spectrograph, and a new AO system containing both an optical and near-infrared (NIR; 0.9-1.8 μm) pyramid wavefront sensor (PyWFS). The NIR PyWFS will utilize an IR-optimized double pyramid coupled with a SAPHIRA detector: a low-read noise electron Avalanche Photodiode (eAPD) array. This NIR PyWFS will improve MAPS’s sky coverage by an order of magnitude by allowing redder guide stars (e.g. K & M-dwarfs or highly obscured stars in the Galactic plane) to be used. To date, the custom designed cryogenic SAPHIRA camera has been fully characterized and can reach sub-electron read noise at high avalanche gain. In order to test the performance of the camera in a closed-loop environment prior to delivery to the observatory, an AO testbed was designed and constructed. In addition to testing the SAPHIRA’s performance, the testbed will be used to test and further develop the proposed on-sky calibration procedure for MMTO’s ASM. We will report on the anticipated performance improvements from our NIR PyWFS, the SAPHIRA’s closed-loop performance on our testbed, and the status of our ASM calibration procedure.
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影响因子:
2.1
作者:
P. Wizinowich;M. Chun;D. Mawet;G. Agapito;R. Dekany;S. Esposito;T. Fusco;O. Guyon;D. Hall;C. Plantet;F. Rigaut
通讯作者:
F. Rigaut
DOI:
--
发表时间:
1999
期刊:
Optics & Photonics
影响因子:
--
作者:
G. Brusa;A. Riccardi;V. Biliotti;C. del Vecchio;P. Salinari;P. Stefanini;P. Mantegazza;R. Biasi;M. Andrighettoni;C. Franchini;D. Gallieni
通讯作者:
D. Gallieni
DOI:
--
发表时间:
2016
期刊:
Astronomical Telescopes + Instrumentation
影响因子:
--
作者:
G. Finger;I. Baker;D. Álvarez;C. Dupuy;D. Ives;M. Meyer;L. Mehrgan;J. Stegmeier;H. Weller
通讯作者:
H. Weller
DOI:
--
发表时间:
2018
期刊:
Astronomical Telescopes + Instrumentation
影响因子:
--
作者:
A. Butko;S. Sivanandam;T. Hardy;Siqi Liu;Shaojie Chen;J. Véran;P. Hinz
通讯作者:
P. Hinz
影响因子:
4.8
作者:
O. Lai;M. Chun;Ryan Dungee;Jessica R. Lu;M. Carbillet
通讯作者:
M. Carbillet