Large format MBE HgCdTe on silicon detector development for astronomy

Hanold, Brandon J.; Figer, Donald F.; Lee, Joong; Kolb, Kimberly; Marcuson, Iain; Corrales, E.; Getty, J.T.; Mears, Lynn

doi:10.1117/12.2195991

Cited by 7 publications

(3 citation statements)

References 5 publications

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“…Similarly, ATI awards 1207827 and 1509716/Figer constituted substantial investments in the competing Raytheon technology. At present the Raytheon detectors have difficulty reaching sufficiently low dark current [35]. However, if further development can meet the dark current specification, Raytheon detectors could be transformative.…”

Section: Discussion: Ati Through the Yearsmentioning

confidence: 99%

Advanced technologies and instrumentation and the National Science Foundation

Kurczynski

Neff

2018

Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III

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Over its more than thirty-year history, the Advanced Technologies and Instrumentation (ATI) program has provided grants to support technology development for ground-based astronomy. Research from this program has advanced adaptive optics, high resolution and multi-object spectroscopy, optical interferometry and synoptic surveys, to name just a few. Previous and ongoing scientific advances span the entire field of astronomy, from studies of the Sun to the distant universe. Through a combination of literature assessment and individual case studies, we present a survey of ATI funded research for optical-infrared astronomy. We find that technology development unfolds over a time period that is longer than an individual grant. A longitudinal perspective shows that substantial scientific gains have resulted from investments in technology.

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Section: Discussion: Ati Through the Yearsmentioning

confidence: 99%

Advanced technologies and instrumentation and the National Science Foundation

Kurczynski

Neff

2018

Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III

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“…Another method to reduce the effects of materials mismatch is to use intermediate buffer layers. This reduces defect growth and dark current [651]. Foundries would ideally offer some of these newer processes and the photonic design kit (PDK) must accommodate mismatched materials in the design; very few combinations are now supported.…”

Section: Advances In Science and Technology To Meet Challengesmentioning

confidence: 99%

2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments

Jovanovic,

Gatkine,

Anugu

et al. 2023

J. Phys. Photonics

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Photonic technologies offer numerous functionalities that can be used to realize astrophotonic instruments. The most spectacular example to date is the ESO Gravity instrument at the Very Large Telescope in Chile that combines the light-gathering power of four 8-m telescopes through a complex photonic interferometer. Fully integrated astrophotonic devices offer critical advantages for instrument development, including extreme miniaturization when operating at the diffraction-limit, plus integration, superior thermal and mechanical stabilization owing to the small footprint, and high replicability offering significant cost savings. Numerous astrophotonic technologies have been developed to address shortcomings of conventional instruments to date, including the development of photonic lanterns to convert from multimode inputs to single mode outputs, complex aperiodic fiber Bragg gratings to filter OH emission from the atmosphere, beam combiners enabling long baseline interferometry with for example, ESO Gravity, and laser frequency combs for high precision spectral calibration of spectrometers. Despite these successes, the facility implementation of photonic solutions in astronomical instrumentation is currently limited because of 1) low throughputs from coupling to fibers, coupling fibers to chips, propagation and bend losses, device losses, etc., 2) difficulties with scaling to large channel count devices needed for large bandwidths and high resolutions, and 3) efficient integration of photonics with detectors. In this roadmap, we identify 23 key areas that need further development. We outline the challenges and advances needed across those areas covering design tools, simulation capabilities, fabrication processes, the need for entirely new components, integration and hybridization and the characterization of devices. To realize these advances the astrophotonics community will have to work cooperatively with industrial partners who have more advanced manufacturing capabilities. With the advances described herein, multi-functional integrated instruments will be realized leading to novel observing capabilities for both ground and space based platforms, enabling new scientific studies and discoveries.

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“…At present the Raytheon detectors have difficulty reaching suffi-ciently low dark current. 90 However, if further development can meet the dark current specification, Raytheon detectors could be transformative.…”

Section: Infrared Detectorsmentioning

confidence: 99%

Enabling discoveries: a review of 30 years of advanced technologies and instrumentation at the National Science Foundation

Kurczynski

Milojević

2020

J. Astron. Telesc. Instrum. Syst.

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Over its more than 30-year history, the Advanced Technologies and Instrumentation (ATI) program has provided grants to support technology development and instrumentation for ground-based astronomy. Through a combination of automated literature assessment and indepth literature review, we present a survey of ATI-funded research and its impact on astronomy and society. Award acknowledgment and literature citation statistics for ATI are comparable to a comparison astronomy grant program that does not support technology development. Citation statistics for both NSF-funded programs exceed those of the general astronomical literature. Numerous examples demonstrate the significant, long-term impact of ATI-supported research in astronomy. As part of this impact, ATI grants have provided many early career researchers the opportunity to gain critical professional experience. However, technology development unfolds over a time period that is longer than an individual grant. A longitudinal perspective shows that investments in technology and instrumentation have led to extraordinary scientific progress. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Large format MBE HgCdTe on silicon detector development for astronomy

Cited by 7 publications

References 5 publications

Advanced technologies and instrumentation and the National Science Foundation

Advanced technologies and instrumentation and the National Science Foundation

2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments

Enabling discoveries: a review of 30 years of advanced technologies and instrumentation at the National Science Foundation

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