SHARP: The SHARC-II polarimeter for CSO

H. Li; M. Attard; C. D. Dowell; R. H. Hildebrand; M. Houde; L. Kirby; G. Novak; J. E. Vaillancourt

doi:10.1117/12.671591

SHARP: The SHARC-II polarimeter for CSO

H. Li^*, M. Attard, C. D. Dowell, R. H. Hildebrand, M. Houde, L. Kirby, G. Novak, J. E. Vaillancourt

^*Corresponding author for this work

Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Scopus citations

Abstract

SHARC-II is a 32 × 12 pixel submillimeter camera that is used with the ten-meter diameter Caltech Submillimeter Observatory (CSO) on Mauna Kea. This camera can be operated at either 350 or 450 microns. We developed a module that is installed at the CSO Nasmyth focus in order to convert SHARC-II into a sensitive imaging polarimeter, which we refer to as "SHARP". SHARP splits the incident beam into two orthogonally polarized beams that are then re-imaged onto different halves of the SHARC-II bolometer array. When this removable polarimetry module is in use, SHARC-II becomes a dual-beam 12 × 12 pixel polarimeter. Sky noise is a significant source of error for submillimeter continuum observations. Because SHARP simultaneously observes two orthogonal polarization components, we are able to eliminate or greatly reduce this source of error. Here we describe the design of SHARP and report preliminary results of tests and observations carried out during our first two runs at CSO in August 2005 and January 2006.

Original language	English (US)
Title of host publication	Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III
DOIs	https://doi.org/10.1117/12.671591
State	Published - 2006
Event	Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III - Orlando, FL, United States Duration: May 29 2006 → May 31 2006

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6275
ISSN (Print)	0277-786X

Other

Other	Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III
Country/Territory	United States
City	Orlando, FL
Period	5/29/06 → 5/31/06

Keywords

Polarimeter
Submillimeter

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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10.1117/12.671591

Cite this

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title = "SHARP: The SHARC-II polarimeter for CSO",

abstract = "SHARC-II is a 32 × 12 pixel submillimeter camera that is used with the ten-meter diameter Caltech Submillimeter Observatory (CSO) on Mauna Kea. This camera can be operated at either 350 or 450 microns. We developed a module that is installed at the CSO Nasmyth focus in order to convert SHARC-II into a sensitive imaging polarimeter, which we refer to as {"}SHARP{"}. SHARP splits the incident beam into two orthogonally polarized beams that are then re-imaged onto different halves of the SHARC-II bolometer array. When this removable polarimetry module is in use, SHARC-II becomes a dual-beam 12 × 12 pixel polarimeter. Sky noise is a significant source of error for submillimeter continuum observations. Because SHARP simultaneously observes two orthogonal polarization components, we are able to eliminate or greatly reduce this source of error. Here we describe the design of SHARP and report preliminary results of tests and observations carried out during our first two runs at CSO in August 2005 and January 2006.",

keywords = "Polarimeter, Submillimeter",

author = "H. Li and M. Attard and Dowell, {C. D.} and Hildebrand, {R. H.} and M. Houde and L. Kirby and G. Novak and Vaillancourt, {J. E.}",

year = "2006",

doi = "10.1117/12.671591",

language = "English (US)",

isbn = "081946340X",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

booktitle = "Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III",

}

Li, H, Attard, M, Dowell, CD, Hildebrand, RH, Houde, M, Kirby, L, Novak, G & Vaillancourt, JE 2006, SHARP: The SHARC-II polarimeter for CSO. in Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III., 62751H, Proceedings of SPIE - The International Society for Optical Engineering, vol. 6275, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III, Orlando, FL, United States, 5/29/06. https://doi.org/10.1117/12.671591

TY - GEN

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T2 - Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III

AU - Li, H.

AU - Attard, M.

AU - Dowell, C. D.

AU - Hildebrand, R. H.

AU - Houde, M.

AU - Kirby, L.

AU - Novak, G.

AU - Vaillancourt, J. E.

PY - 2006

Y1 - 2006

N2 - SHARC-II is a 32 × 12 pixel submillimeter camera that is used with the ten-meter diameter Caltech Submillimeter Observatory (CSO) on Mauna Kea. This camera can be operated at either 350 or 450 microns. We developed a module that is installed at the CSO Nasmyth focus in order to convert SHARC-II into a sensitive imaging polarimeter, which we refer to as "SHARP". SHARP splits the incident beam into two orthogonally polarized beams that are then re-imaged onto different halves of the SHARC-II bolometer array. When this removable polarimetry module is in use, SHARC-II becomes a dual-beam 12 × 12 pixel polarimeter. Sky noise is a significant source of error for submillimeter continuum observations. Because SHARP simultaneously observes two orthogonal polarization components, we are able to eliminate or greatly reduce this source of error. Here we describe the design of SHARP and report preliminary results of tests and observations carried out during our first two runs at CSO in August 2005 and January 2006.

AB - SHARC-II is a 32 × 12 pixel submillimeter camera that is used with the ten-meter diameter Caltech Submillimeter Observatory (CSO) on Mauna Kea. This camera can be operated at either 350 or 450 microns. We developed a module that is installed at the CSO Nasmyth focus in order to convert SHARC-II into a sensitive imaging polarimeter, which we refer to as "SHARP". SHARP splits the incident beam into two orthogonally polarized beams that are then re-imaged onto different halves of the SHARC-II bolometer array. When this removable polarimetry module is in use, SHARC-II becomes a dual-beam 12 × 12 pixel polarimeter. Sky noise is a significant source of error for submillimeter continuum observations. Because SHARP simultaneously observes two orthogonal polarization components, we are able to eliminate or greatly reduce this source of error. Here we describe the design of SHARP and report preliminary results of tests and observations carried out during our first two runs at CSO in August 2005 and January 2006.

KW - Polarimeter

KW - Submillimeter

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DO - 10.1117/12.671591

M3 - Conference contribution

AN - SCOPUS:33749623498

SN - 081946340X

SN - 9780819463401

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III

Y2 - 29 May 2006 through 31 May 2006

ER -

SHARP: The SHARC-II polarimeter for CSO

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Keywords

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