Eve M Vavagiakis

Conference EPJ Web of Conferences · February 20, 2026 The CCAT Observatory’s Fred Young Submillimeter Telescope, a novel, high-throughput, 6-meter aperture telescope, is scheduled for first light in 2026. Located at 5600 m on Cerro Chajnantor in the Chilean Atacama Desert, the CCAT site enables unprecedented ... Full text Cite

CCAT: FYST Prime-Cam Readout Software: A framework for massively scalable KID arrays

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2024 We outline the development of the readout software for the Prime-Cam and Mod-Cam instruments on the CCAT Fred Young Submillimeter Telescope (FYST), primecam readout. The instruments feature lumped-element kinetic inductance detector (LEKID) arrays driven b ... Full text Cite

CCAT: Nonlinear effects in 280 GHz aluminum kinetic inductance detectors

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2024 Prime-Cam, a first-generation science instrument for the Atacama-based Fred Young Submillimeter Telescope, is being built by the CCAT Collaboration to observe at millimeter and submillimeter wavelengths using kinetic inductance detectors (KIDs). Prime-Cam' ... Full text Cite

CCAT: Design and initial measurements of densely packed, high-frequency, dual-polarization kinetic inductance detectors for the Prime-Cam 850 GHz module

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2024 Prime-Cam is a first-generation instrument designed for the Fred Young Submillimeter Telescope (FYST) in the Cerro Chajnantor Atacama Telescope (CCAT) Facility. Among the instrument modules being developed for the Prime-Cam receiver, the highest frequency ... Full text Cite

CCAT: Prime-Cam Optics Overview and Status Update

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2024 Prime-Cam is a first-generation science instrument for the CCAT Observatory's six-meter aperture Fred Young Submillimeter Telescope (FYST). FYST's crossed-Dragone design provides high optical throughput to take advantage of its unique site at 5600 m on Cer ... Full text Cite

CCAT: Characterizing the Fabry-Pérot Interferometer Mirrors and Mount for the Epoch of Reionization Spectrometer

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2024 The Epoch of Reionization Spectrometer (EoR-Spec) is an instrument module with unique spectroscopic capabilities within the Prime-Cam receiver on the Fred Young Submillimeter Telescope (FYST), a forthcoming six-meter aperture telescope to be situated on Ce ... Full text Cite

CCAT: A status update on the EoR-Spec instrument module for Prime-Cam

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2024 The Epoch of Reionization Spectrometer (EoR-Spec) is an upcoming Line Intensity Mapping (LIM) instrument designed to study the evolution of the early universe (z = 3.5 to 8) by probing the redshifted [CII] 158 µm fine-structure line from aggregates of gala ... Full text Cite

The Simons Observatory: Studies of Detector Yield and Readout Noise From the First Large-Scale Deployment of Microwave Multiplexing at the Large Aperture Telescope

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2024 The Simons Observatory is a new ground-based cosmic microwave background experiment, which is currently being commissioned in Chile's Atacama Desert. During its survey, the observatory's small aperture telescopes will map 10% of the sky in bands centered a ... Full text Cite

Thermal and mechanical study of a parametrised cryostat model for optical characterisation of upcoming CMB experiments

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2024 Current and future experiments observing the cosmic microwave background require a detailed understanding of optical performance at cryogenic temperatures. Pre-deployment analysis of optics can be performed in custom-engineered cryogenic test beds, such as ... Full text Cite

CCAT: Detector Noise Limited Performance of the RFSoC-based Readout Electronics for mm/sub-mm/far-IR KIDs

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2024 The Fred Young Submillimeter Telescope (FYST), on Cerro Chajnantor in the Atacama desert of Chile, will conduct wide-field and small deep-field surveys of the sky with more than 100,000 detectors on the Prime-Cam instrument. Kinetic inductance detectors (K ... Full text Cite

CCAT-prime: RFSoC based readout for frequency multiplexed kinetic inductance detectors

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2022 The Prime-Cam instrument on the Fred Young Submillimeter Telescope (FYST) is expected to be the largest deployment of millimeter and submillimeter sensitive kinetic inductance detectors to date. To read out these arrays efficiently, a microwave frequency m ... Full text Cite

Ccat-prime: design of the mod-cam receiver and 280 ghz mkid instrument module

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2022 Mod-Cam is a first light and commissioning instrument for the CCAT-prime project's six-meter aperture Fred Young Submillimeter Telescope (FYST), currently under construction at 5600 m on Cerro Chajnantor in Chile's Atacama Desert. Prime-Cam, a first-genera ... Full text Cite

CCAT-prime: The design of the epoch of reionization spectrometer detector arrays

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2022 The epoch of reionization spectrometer (EoR-Spec) is an instrument module that will be deployed in the Prime-Cam receiver on the Fred Young Submillimeter Telescope (FYST), which is a 6m off-Axis telescope for the CCAT-prime facility. FYST is currently bein ... Full text Cite

CCAT-prime/FYST: a status report on the ultra-widefield submillimeter observatory on Cerro Chajnantor

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2022 We report on the CCAT-prime Project, including the science program, the Fred Young Submillimeter Telescope (FYST), its instrumentation, and the schedule. FYST is a 6-m telescope sited at 5600 m elevation near the summit of Cerro Chajnantor in northern Chil ... Full text Cite

CCAT-prime: The epoch reionization spectrometer for primce-cam on FYST

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2022 The Fred Young Submillimeter Telescope (FYST), which is the telescope of the CCAT-prime project, will be located at 5600 m near the summit of Cerro Chajnantor in northern Chile, and will host the modular instrument called Prime-Cam. Two of the instrument m ... Full text Cite

CCAT-prime: The design and characterization of the silicon mirrors for the Fabry-Perot interferometer in the Epoch of reionization spectrometer

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2022 The Epoch of Reionization Spectrometer (EoR-Spec) is one of the instrument modules to be installed in the Prime-Cam receiver of the Fred Young Submillimeter Telescope (FYST). This six-meter aperture telescope will be built on Cerro Chajnantor in the Atacam ... Full text Cite

Ccat-prime: the optical design for the epoch of reionization spectrometer

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2022 The Epoch of Reionization Spectrometer (EoR-Spec) will be an instrument module for the Prime-Cam receiver on the CCAT-prime Collaboration's Fred Young Submillimeter Telescope (FYST), a 6-m primary mirror Crossed Dragone telescope. With its Fabry-Perot inte ... Full text Cite

CCAT-prime: Optical and cryogenic design of the 850 GHz module for Prime-Cam

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2022 Prime-Cam is a first-generation instrument for the Cerro Chajnantor Atacama Telescope-prime (CCAT-prime) Facility. The 850 GHz module for Prime-Cam will probe the highest frequency of all the instrument modules. We describe the parameter space of the 850 G ... Full text Cite

Ccat-prime: the 850 ghz camera for prime-cam on fyst

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2022 The Fred Young Submillimeter Telescope (FYST) at the Cerro-Chajnantor Atacama Telescope prime (CCATprime) Facility will host Prime-Cam as a powerful, first generation camera with imaging polarimeters working at several wavelengths and spectroscopic instrum ... Full text Cite

Development of an optical detector testbed for the Simons Observatory

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2020 The Simons Observatory (SO) is a cosmic microwave background (CMB) survey experiment with three small-Aperture telescopes and one large-Aperture telescope, which will observe from the Atacama Desert in Chile. In total, SO will field over 60,000 transition ... Full text Cite

The integration and testing program for the Simons Observatory Large Aperture Telescope optics tubes

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2020 The Simons Observatory (SO) will be a CMB survey experiment with three small-Aperture telescopes and one large-Aperture telescope (the LAT), which will observe from the Atacama Desert in Chile. In total, SO will field over 60,000 TES bolometers in six spec ... Full text Cite

Comparing complex impedance and bias step measurements of Simons Observatory transition edge sensors

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2020 The Simons Observatory (SO) will perform ground-based observations of the cosmic microwave background (CMB) with several small and large aperture telescopes, each outfitted with thousands to tens of thousands of superconducting aluminum manganese (AlMn) tr ... Full text Cite

The Simons Observatory: The Large Aperture Telescope Receiver (LATR) integration and validation results

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2020 The Simons Observatory (SO) will observe the cosmic microwave background (CMB) from Cerro Toco in the Atacama Desert of Chile. The observatory consists of three 0.5m Small Aperture Telescopes (SATs) and one 6m Large Aperture Telescope (LAT), covering six f ... Full text Cite

Assembly development for the Simons Observatory focal plane readout module

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2020 The Simons Observatory is a suite of instruments sensitive to temperature and polarization of the cosmic microwave background. Five telescopes will host over 60,000 highly multiplexed transition edge sensor (TES) detectors. The universal focal plane module ... Full text Cite

CCAT-prime: Designs and status of the first light 280 GHz MKID array and mod-cam receiver

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2020 The CCAT-prime project's first light array will be deployed in Mod-Cam, a single-module testbed and first light cryostat, on the Fred Young Submillimeter Telescope (FYST) in Chile's high Atacama desert in late 2022. FYST is a six-meter aperture telescope b ... Full text Cite

Optical design study for the 860 GHz first-light camera module of CCAT-p

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2020 The CCAT-prime telescope, also known as the Fred Young Submillimeter Telescope (FYST), has an unblocked 6-m aperture designed for an extraordinarily wide field-of-view to be used in cosmological and galactic studies. Located at 5600 m near ALMA, the site h ... Full text Cite

Optimizing the efficiency of Fabry-Perot interferometers with silicon-substrate mirrors

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2018 We present the novel design of microfabricated, silicon-substrate based mirrors for use in cryogenic Fabry-Perot Interferometers (FPIs) for the mid-IR to sub-mm/mm wavelength regime. One side of the silicon substrate will have a double-layer metamaterial a ... Full text Cite

Simons Observatory large aperture receiver simulation overview

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2018 The Simons Observatory (SO) will make precision temperature and polarization measurements of the cosmic microwave background (CMB) using a series of telescopes which will cover angular scales between one arcminute and tens of degrees, contain over 60,000 d ... Full text Cite

Simons Observatory large aperture telescope receiver design overview

Studies of Systematic uncertainties in the Simons Observatory: Optical effects and sensitivity considerations

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2018 The Simons Observatory (SO) is a new experiment that aims to measure the cosmic microwave background (CMB) in temperature and polarization. SO will measure the polarized sky over a large range of microwave frequencies and angular scales using a combination ... Full text Cite

Designs for next generation CMB survey strategies from Chile

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2018 New telescopes are being built to measure the Cosmic Microwave Background (CMB) with unprecedented sensitivity, including Simons Observatory (SO), CCAT-prime, the BICEP Array, SPT-3G, and CMB Stage-4. We present observing strategies for telescopes located ... Full text Cite

The Simons Observatory: Instrument overview

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2018 The Simons Observatory (SO) will make precision temperature and polarization measurements of the cosmic microwave background (CMB) using a series of telescopes which will cover angular scales between 1 arcminute and tens of degrees, contain over 40,000 det ... Full text Cite

CCAT-Prime: Science with an ultra-widefield submillimeter observatory on Cerro Chajnantor

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2018 We present the detailed science case, and brief descriptions of the telescope design, site, and first light instrument plans for a new ultra-wide field submillimeter observatory, CCAT-prime, that we are constructing at a 5600 m elevation site on Cerro Chaj ... Full text Cite

CCAT-prime: A novel telescope for sub-millimeter astronomy

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2018 The CCAT-prime telescope is a 6-meter aperture, crossed-Dragone telescope, designed for millimeter and sub-millimeter wavelength observations. It will be located at an altitude of 5600 meters, just below the summit of Cerro Chajnantor in the high Atacama r ... Full text Cite

The optical design of the six-meter CCAT-prime and Simons Observatory telescopes

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2018 A common optical design for a coma-corrected, 6-meter aperture, crossed-Dragone telescope has been adopted for the CCAT-prime telescope of CCAT Observatory, Inc., and for the Large Aperture Telescope of the Simons Observatory. Both are to be built in the h ... Full text Cite

Cold optical design for the large aperture Simons' Observatory telescope

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2018 The Simons Observatory will consist of a single large (6 m diameter) telescope and a number of smaller (∼0.5 m diameter) refracting telescopes designed to measure the polarization of the Cosmic Microwave Background to unprecedented accuracy. The large aper ... Full text Cite

Cooldown strategies and transient thermal simulations for the Simons Observatory

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2018 The Simons Observatory (SO) will provide precision polarimetry of the cosmic microwave background (CMB) using a series of telescopes which will cover angular scales from arc-minutes to tens of degrees, contain over 60,000 detectors, and observe in frequenc ... Full text Cite

Prime-Cam: A first-light instrument for the CCAT-prime telescope

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2018 CCAT-prime will be a 6-meter aperture telescope operating from sub-mm to mm wavelengths, located at 5600 meters elevation on Cerro Chajnantor in the Atacama Desert in Chile. Its novel crossed-Dragone optical design will deliver a high throughput, wide fiel ... Full text Cite

The design and characterization of wideband spline-profiled feedhorns for Advanced ACTPol

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2016 Advanced ACTPol (AdvACT) is an upgraded camera for the Atacama Cosmology Telescope (ACT) that will measure the cosmic microwave background in temperature and polarization over a wide range of angular scales and five frequency bands from 28-230 GHz. AdvACT ... Full text Cite

Mechanical designs and development of TES bolometer detector arrays for the Advanced ACTPol experiment

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2016 The next generation Advanced ACTPol (AdvACT) experiment is currently underway and will consist of four Transition Edge Sensor (TES) bolometer arrays, with three operating together, totaling ~ 5800 detectors on the sky. Building on experience gained with th ... Full text Cite

Readout of two-kilopixel transition-edge sensor arrays for Advanced ACTPol

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2016 Advanced ACTPol is an instrument upgrade for the six-meter Atacama Cosmology Telescope (ACT) designed to measure the cosmic microwave background (CMB) temperature and polarization with arcminute-scale angular resolution. To achieve its science goals, Advan ... Full text Cite

Assembly and integration process of the first high density detector array for the Atacama Cosmology Telescope

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2016 The Advanced ACTPol (AdvACT) upgrade on the Atacama Cosmology Telescope (ACT) consists of multichroic Transition Edge Sensor (TES) detector arrays to measure the Cosmic Microwave Background (CMB) polarization anisotropies in multiple frequency bands. The f ... Full text Cite

Optical modeling and polarization calibration for CMB measurements with ACTPol and Advanced ACTPol

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2016 The Atacama Cosmology Telescope Polarimeter (ACTPol) is a polarization sensitive upgrade to the Atacama Cosmology Telescope, located at an elevation of 5190 m on Cerro Toco in Chile. ACTPol uses transition edge sensor bolometers coupled to orthomode transd ... Full text Cite

Survey strategy optimization for the Atacama Cosmology Telescope

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2016 In recent years there have been significant improvements in the sensitivity and the angular resolution of the instruments dedicated to the observation of the Cosmic Microwave Background (CMB). ACTPol is the first polarization receiver for the Atacama Cosmo ... Full text Cite

A miniature cryogenic scanning Fabry-Perot interferometer for mid-IR to submm astronomical observations

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2014 We have designed and evaluated a Miniature Cryogenic Scanning Fabry-Perot (MCSF) interferometer which can be inserted into the optical path of a mid-IR camera to observe fine structure lines in the 25-40 μm wavelength regime. The MCSF uses free standing me ... Full text Cite