GASP-Galway astronomical Stokes polarimeter

Details GASP-Galway astronomical Stokes polarimeter GASP-Galway astronomical Stokes polarimeter

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010epjwc...505003k&link_type=abstract

API'09 - First NanoCharM Workshop on Advanced Polarimetric Instrumentation, Palaiseau, France, Edited by E. Garcia-Caurel; A. de

Astronomy and Astrophysics

Astronomy

Scientific paper

The Galway Astronomical Stokes Polarimeter (GASP) is an ultra-high-speed, full Stokes, astronomical imaging polarimeter based upon a Division of Amplitude Polarimeter. It has been developed to resolve extremely rapid stochastic (~ms) variations in objects such as optical pulsars, magnetars and magnetic cataclysmic variables. The polarimeter has no moving parts or modulated components so the complete Stokes vector can be measured from just one exposure - making it unique to astronomy. The time required for the determination of the full Stokes vector is limited only by detector efficiency and photon fluxes. The polarimeter utilizes a modified Fresnel rhomb that acts as a highly achromatic quarter wave plate and a beamsplitter (referred to as an RBS). We present a description of how the DOAP works, some of the optical design for the polarimeter. Calibration is an important and difficult issue with all polarimeters, but particularly in astronomical polarimeters. We give a description of calibration techniques appropriate to this type of polarimeter.

Affiliated with

Also associated with

No associations

Rating

GASP-Galway astronomical Stokes polarimeter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with GASP-Galway astronomical Stokes polarimeter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GASP-Galway astronomical Stokes polarimeter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1829461