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One of the problems of producing spectrographs for Extremely Large Telescopes (ELTs) is that the beam size is required to scale with telescope aperture if all other parameters are held constant, leading to enormous size and implied cost.…

Instrumentation and Methods for Astrophysics · Physics 2009-08-12 J. R. Allington-Smith

Adaptive optics (AO) systems and image reconstruction algorithms are indispensable tools when it comes to high-precision astrometry. In this paper, we analyze the potential of combining both techniques, i.e. by applying image reconstruction…

Instrumentation and Methods for Astrophysics · Physics 2019-03-13 Felix Bosco , Jörg-Uwe Pott , Rainer Schödel

Accurate and precise measurements of the Hubble constant are critical for testing our current standard cosmological model and revealing possibly new physics. With Hubble Space Telescope (HST) imaging, each strong gravitational lens system…

We describe and summarize the optical challenges for future instrumentation for Extremely Large Telescopes (ELTs). Knowing the complex instrumental requirements is crucial for the successful design of 30-60m aperture telescopes. After all,…

Using five independent analytic and Monte Carlo simulation codes, we have studied the performance of wide field ground layer adaptive optics (GLAO), which can use a single, relatively low order deformable mirror to correct the wavefront…

The EAGLE and EVE Phase A studies for instruments for the European Extremely Large Telescope (E-ELT) originated from related top-level scientific questions, but employed different (yet complementary) methods to deliver the required…

As telescopes get larger, the size of a seeing-limited spectrograph for a given resolving power becomes larger also, and for ELTs the size will be so great that high resolution instruments of simple design will be infeasible. Solutions…

Instrumentation and Methods for Astrophysics · Physics 2015-06-11 J. Gordon Robertson , Joss Bland-Hawthorn

Multifocal plane microscopy (MUM) allows three dimensional objects to be imaged in a single camera frame. Our approach uses dual orthogonal diffraction phase gratings with a quadratic distortion of the lines to apply defocus to the first…

Optics · Physics 2020-03-13 Benjamin Gore , Noah Schwartz , Paul Dalgarno

The OPTIMOS-EVE concept provides optical to near-infrared (370-1700 nm) spectroscopy, with three spectral resolution (5000, 15000 and 30000), with high simultaneous multiplex (at least 200). The optical fibre links are distributed in five…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 Isabelle Guinouard , Fanny Chemla , Hector Flores , Jean-Michel Huet , François Hammer , Gerben Wulterkens

Acousto-optic deflectors (AODs) are widely used across physics, microscopy, neuroscience, and laser engineering, providing fast, precise, and non-mechanical control of light. While conventional AODs naturally support multiplexing in one and…

Optics · Physics 2025-10-10 Lewis R. B. Picard , Manuel Endres

Adaptive optics (AO) is a key technology for ground-based optical and infrared astronomy, providing high angular resolution and sensitivity. AO systems employing laser guide stars (LGS) can achieve high sky coverage, but their performance…

Instrumentation and Methods for Astrophysics · Physics 2021-04-21 P. Hickson , J. Hellemeier , R. Yang

Extreme adaptive optics systems are now in operation across the globe. These systems, capable of high order wavefront correction, deliver Strehl ratios of 90% in the near-infrared. Originally intended for the direct imaging of exoplanets,…

Instrumentation and Methods for Astrophysics · Physics 2016-11-09 Nemanja Jovanovic , Christian Schwab , Nick Cvetojevic , Olivier Guyon , Frantz Martinache

HIRES, a high resolution spectrometer, is one of the first five instruments foreseen in the ESO roadmap for the E-ELT. This spectrograph should ideally provide full spectral coverage from the UV limit to 2.5 microns, with a resolving power…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 N. Sanna , E. Oliva , F. Massi , G. Cresci , L. Origlia

In this paper we present the Adaptive Optics Lucky Imager (AOLI), a state-of-the-art instrument which makes use of two well proved techniques for extremely high spatial resolution with ground-based telescopes: Lucky Imaging (LI) and…

Adaptive Optics (AO) is a new and rapidly expanding field of instrumentation, yet astronomers, vision scientists, and general AO practitioners are largely unfamiliar with the root technologies crucial to AO systems. The AO Summer School…

MICADO is a first light instrument for the Extremely Large Telescope (ELT), set to start operating later this decade. It will provide diffraction limited imaging, astrometry, high contrast imaging, and long slit spectroscopy at…

Instrumentation and Methods for Astrophysics · Physics 2024-08-30 E. Sturm , R. Davies , J. Alves , Y. Clénet , J. Kotilainen , A. Monna , H. Nicklas , J. -U. Pott , E. Tolstoy , B. Vulcani , J. Achren , S. Annadevara , H. Anwand-Heerwart , C. Arcidiacono , S. Barboza , L. Barl , P. Baudoz , R. Bender , N. Bezawada , F. Biondi , P. Bizenberger , A. Blin , A. Boné , P. Bonifacio , B. Borgo , J. van den Born , T. Buey , Y. Cao , F. Chapron , G. Chauvin , F. Chemla , K. Cloiseau , M. Cohen , C. Collin , O. Czoske , J. -O. Dette , M. Deysenroth , E. Dijkstra , S. Dreizler , O. Dupuis , G. van Egmond , F. Eisenhauer , E. Elswijk , A. Emslander , M. Fabricius , G. Fasola , F. Ferreira , N. M. Förster Schreiber , A. Fontana , J. Gaudemard , N. Gautherot , E. Gendron , C. Gennet , R. Genzel , L. Ghouchou , S. Gillessen , D. Gratadour , A. Grazian , F. Grupp , S. Guieu , M. Gullieuszik , M. de Haan , J. Hartke , M. Hartl , F. Haussmann , T. Helin , H. -J. Hess , R. Hofferbert , H. Huber , E. Huby , J. -M. Huet , D. Ives , A. Janssen , P. Jaufmann , T. Jilg , D. Jodlbauer , J. Jost , W. Kausch , H. Kellermann , F. Kerber , H. Kravcar , K. Kravchenko , C. Kulcsár , H. Kunkarayakti , P. Kunst , S. Kwast , F. Lang , J. Lange , V. Lapeyrere , B. Le Ruyet , K. Leschinski , H. Locatelli , D. Massari , S. Mattila , S. Mei , F. Merlin , E. Meyer , C. Michel , L. Mohr , M. Montargès , F. Müller , N. Münch , R. Navarro , U. Neumann , N. Neumayer , L. Neumeier , F. Pedichini , A. Pflüger , R. Piazzesi , L. Pinard , J. Porras , E. Portaluri , N. Przybilla , S. Rabien , J. Raffard , R. Raggazoni , R. Ramlau , J. Ramos , S. Ramsay , H. -F. Raynaud , P. Rhode , A. Richter , H. -W. Rix , M. Rodenhuis , R. -R. Rohloff , R. Romp , P. Rousselot , N. Sabha , B. Sassolas , J. Schlichter , M. Schuil , M. Schweitzer , U. Seemann , A. Sevin , M. Simioni , L. Spallek , A. Sönmez , J. Suuronen , S. Taburet , J. Thomas , E. Tisserand , P. Vaccari , E. Valenti , G. Verdoes Kleijn , M. Verdugo , F. Vidal , R. Wagner , M. Wegner , D. van Winden , J. Witschel , A. Zanella , W. Zeilinger , J. Ziegleder , B. Ziegler

Context: Current instrument developments at the largest telescopes worldwide have provisions for Multi-Conjugated Adaptive Optics (MCAO) modules. The large field of view and more uniform correction provided by these systems is not only…

Instrumentation and Methods for Astrophysics · Physics 2015-05-28 Eva Meyer , Martin Kuerster , Carmelo Arcidiacono , Roberto Ragazzoni , Hans-Walter Rix

The Mid-infrared ELT Imager and Spectrograph (METIS) will provide the Extremely Large Telescope (ELT) with a unique window to the thermal- and mid-infrared (3 - 13 microns). Its single-conjugate adaptive optics (SCAO) system will enable…

Having completed its commissioning phase, the Advanced Rayleigh guided Ground-layer adaptive Optics System (ARGOS) facility is coming online for scientific observations at the Large Binocular Telescope (LBT). With six Rayleigh laser guide…

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