Optimizing charge-coupled devices for red and near-infrared observations

M. P. Lesser; E. Olszewski; Gary R. Sims; Fabiola Griffin

doi:10.1117/12.952506

Optimizing charge-coupled devices for red and near-infrared observations

M. P. Lesser, E. Olszewski, Gary R. Sims, Fabiola Griffin

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3 Scopus citations

Abstract

Methods to improve the red and near-IR quantum efficiency (QE) of CCDs are discussed. The effects of thinning, antireflection (AR) coating, and mounting CCDs for use in astronomical observations at wavelengths greater than 700 nm are presented. Thinning CCDs to inside their epitaxy and backside illuminating them increases their QE over thick devices even in the far red, due to the absence of frontside absorption and reflection losses. AR coatings decrease the backside reflection loss and greatly reduce the amplitudes of interference fringes. Mounting CCDs on a substrate eliminates surface warpage which improves the user’s ability to correct for instrumental and background signatures. Some of these optimization techniques are demonstrated using the Photometries PM512 CCD made by Ford Aerospace.

Original language	English (US)
Pages (from-to)	58-65
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1071
DOIs	https://doi.org/10.1117/12.952506
State	Published - May 23 1989

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.952506

Cite this

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title = "Optimizing charge-coupled devices for red and near-infrared observations",

abstract = "Methods to improve the red and near-IR quantum efficiency (QE) of CCDs are discussed. The effects of thinning, antireflection (AR) coating, and mounting CCDs for use in astronomical observations at wavelengths greater than 700 nm are presented. Thinning CCDs to inside their epitaxy and backside illuminating them increases their QE over thick devices even in the far red, due to the absence of frontside absorption and reflection losses. AR coatings decrease the backside reflection loss and greatly reduce the amplitudes of interference fringes. Mounting CCDs on a substrate eliminates surface warpage which improves the user{\textquoteright}s ability to correct for instrumental and background signatures. Some of these optimization techniques are demonstrated using the Photometries PM512 CCD made by Ford Aerospace.",

author = "Lesser, {M. P.} and E. Olszewski and Sims, {Gary R.} and Fabiola Griffin",

note = "Funding Information: This work was partially support by grant No. ISI-8760599 from the National Science Foundation.",

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doi = "10.1117/12.952506",

language = "English (US)",

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T1 - Optimizing charge-coupled devices for red and near-infrared observations

AU - Lesser, M. P.

AU - Olszewski, E.

AU - Sims, Gary R.

AU - Griffin, Fabiola

N1 - Funding Information: This work was partially support by grant No. ISI-8760599 from the National Science Foundation.

PY - 1989/5/23

Y1 - 1989/5/23

N2 - Methods to improve the red and near-IR quantum efficiency (QE) of CCDs are discussed. The effects of thinning, antireflection (AR) coating, and mounting CCDs for use in astronomical observations at wavelengths greater than 700 nm are presented. Thinning CCDs to inside their epitaxy and backside illuminating them increases their QE over thick devices even in the far red, due to the absence of frontside absorption and reflection losses. AR coatings decrease the backside reflection loss and greatly reduce the amplitudes of interference fringes. Mounting CCDs on a substrate eliminates surface warpage which improves the user’s ability to correct for instrumental and background signatures. Some of these optimization techniques are demonstrated using the Photometries PM512 CCD made by Ford Aerospace.

AB - Methods to improve the red and near-IR quantum efficiency (QE) of CCDs are discussed. The effects of thinning, antireflection (AR) coating, and mounting CCDs for use in astronomical observations at wavelengths greater than 700 nm are presented. Thinning CCDs to inside their epitaxy and backside illuminating them increases their QE over thick devices even in the far red, due to the absence of frontside absorption and reflection losses. AR coatings decrease the backside reflection loss and greatly reduce the amplitudes of interference fringes. Mounting CCDs on a substrate eliminates surface warpage which improves the user’s ability to correct for instrumental and background signatures. Some of these optimization techniques are demonstrated using the Photometries PM512 CCD made by Ford Aerospace.

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Optimizing charge-coupled devices for red and near-infrared observations

Abstract

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