A polarimetry module for CSO/SHARC-II

Giles A Novak; D. T. Chuss; J. A. Davidson; J. L. Dotson; C. D. Dowell; R. H. Hildebrand; M. Houde; L. Kirby; M. Krejny; A. Lazarian; H. Li; S. H. Moseley; J. E. Vaillancourt; Farhad Yusef-Zadeh

doi:10.1117/12.553076

A polarimetry module for CSO/SHARC-II

Giles A Novak^*, D. T. Chuss, J. A. Davidson, J. L. Dotson, C. D. Dowell, R. H. Hildebrand, M. Houde, L. Kirby, M. Krejny, A. Lazarian, H. Li, S. H. Moseley, J. E. Vaillancourt, Farhad Yusef-Zadeh

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Conference article › peer-review

16 Scopus citations

Abstract

The Submillimeter High Angular Resolution Camera II (SHARC-II) is a 32 × 12 pixel submillimeter camera that is used with the ten-meter diameter Caltech Submillimeter Observatory (CSO) on Mauna Kea. SHARC-II can be operated at either 350 or 450 microns. We are developing an optics module that we will install at a position between the SHARC-II camera and the focus of the CSO's secondary mirror. With our module installed, SHARC-II will be converted into a sensitive imaging polarimeter. The basic idea is that the module will split the incident beam coming from the secondary into two orthogonally polarized beams which are then re-imaged onto opposite ends of the "long and skinny" SHARC-II bolometer array. When this removable polarimetry module is in use, SHARC-II becomes a dual-polarization 12 ×12 pixel polarimeter. (The central 12 × 8 pixels of the SHARC-II array will remain unused.) Sky noise is a significant source of error for submillimeter continuum observations. Because our polarimetry module will allow simultaneous observation of two orthogonal polarization components, we will be able to eliminate or greatly reduce this source of error. Our optical design will include a rotating half-wave plate as well as a cold load to terminate the unused polarization components.

Original language	English (US)
Article number	34
Pages (from-to)	278-289
Number of pages	12
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5498
DOIs	https://doi.org/10.1117/12.553076
State	Published - 2004
Event	Millimeter and Submillimeter Detectors for Astronomy II - Glasgow, United Kingdom Duration: Jun 23 2004 → Jun 25 2004

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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Novak, G. A., Chuss, D. T., Davidson, J. A., Dotson, J. L., Dowell, C. D., Hildebrand, R. H., Houde, M., Kirby, L., Krejny, M., Lazarian, A., Li, H., Moseley, S. H., Vaillancourt, J. E., & Yusef-Zadeh, F. (2004). A polarimetry module for CSO/SHARC-II. Proceedings of SPIE - The International Society for Optical Engineering, 5498, 278-289. [34]. https://doi.org/10.1117/12.553076

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abstract = "The Submillimeter High Angular Resolution Camera II (SHARC-II) is a 32 × 12 pixel submillimeter camera that is used with the ten-meter diameter Caltech Submillimeter Observatory (CSO) on Mauna Kea. SHARC-II can be operated at either 350 or 450 microns. We are developing an optics module that we will install at a position between the SHARC-II camera and the focus of the CSO's secondary mirror. With our module installed, SHARC-II will be converted into a sensitive imaging polarimeter. The basic idea is that the module will split the incident beam coming from the secondary into two orthogonally polarized beams which are then re-imaged onto opposite ends of the {"}long and skinny{"} SHARC-II bolometer array. When this removable polarimetry module is in use, SHARC-II becomes a dual-polarization 12 ×12 pixel polarimeter. (The central 12 × 8 pixels of the SHARC-II array will remain unused.) Sky noise is a significant source of error for submillimeter continuum observations. Because our polarimetry module will allow simultaneous observation of two orthogonal polarization components, we will be able to eliminate or greatly reduce this source of error. Our optical design will include a rotating half-wave plate as well as a cold load to terminate the unused polarization components.",

author = "Novak, {Giles A} and Chuss, {D. T.} and Davidson, {J. A.} and Dotson, {J. L.} and Dowell, {C. D.} and Hildebrand, {R. H.} and M. Houde and L. Kirby and M. Krejny and A. Lazarian and H. Li and Moseley, {S. H.} and Vaillancourt, {J. E.} and Farhad Yusef-Zadeh",

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T1 - A polarimetry module for CSO/SHARC-II

AU - Novak, Giles A

AU - Chuss, D. T.

AU - Davidson, J. A.

AU - Dotson, J. L.

AU - Dowell, C. D.

AU - Hildebrand, R. H.

AU - Houde, M.

AU - Kirby, L.

AU - Krejny, M.

AU - Lazarian, A.

AU - Li, H.

AU - Moseley, S. H.

AU - Vaillancourt, J. E.

AU - Yusef-Zadeh, Farhad

PY - 2004

Y1 - 2004

N2 - The Submillimeter High Angular Resolution Camera II (SHARC-II) is a 32 × 12 pixel submillimeter camera that is used with the ten-meter diameter Caltech Submillimeter Observatory (CSO) on Mauna Kea. SHARC-II can be operated at either 350 or 450 microns. We are developing an optics module that we will install at a position between the SHARC-II camera and the focus of the CSO's secondary mirror. With our module installed, SHARC-II will be converted into a sensitive imaging polarimeter. The basic idea is that the module will split the incident beam coming from the secondary into two orthogonally polarized beams which are then re-imaged onto opposite ends of the "long and skinny" SHARC-II bolometer array. When this removable polarimetry module is in use, SHARC-II becomes a dual-polarization 12 ×12 pixel polarimeter. (The central 12 × 8 pixels of the SHARC-II array will remain unused.) Sky noise is a significant source of error for submillimeter continuum observations. Because our polarimetry module will allow simultaneous observation of two orthogonal polarization components, we will be able to eliminate or greatly reduce this source of error. Our optical design will include a rotating half-wave plate as well as a cold load to terminate the unused polarization components.

AB - The Submillimeter High Angular Resolution Camera II (SHARC-II) is a 32 × 12 pixel submillimeter camera that is used with the ten-meter diameter Caltech Submillimeter Observatory (CSO) on Mauna Kea. SHARC-II can be operated at either 350 or 450 microns. We are developing an optics module that we will install at a position between the SHARC-II camera and the focus of the CSO's secondary mirror. With our module installed, SHARC-II will be converted into a sensitive imaging polarimeter. The basic idea is that the module will split the incident beam coming from the secondary into two orthogonally polarized beams which are then re-imaged onto opposite ends of the "long and skinny" SHARC-II bolometer array. When this removable polarimetry module is in use, SHARC-II becomes a dual-polarization 12 ×12 pixel polarimeter. (The central 12 × 8 pixels of the SHARC-II array will remain unused.) Sky noise is a significant source of error for submillimeter continuum observations. Because our polarimetry module will allow simultaneous observation of two orthogonal polarization components, we will be able to eliminate or greatly reduce this source of error. Our optical design will include a rotating half-wave plate as well as a cold load to terminate the unused polarization components.

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ER -

A polarimetry module for CSO/SHARC-II

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