5 August 2010 Optical design of the EPIC-IM crossed Dragone telescope
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Abstract
The Experimental Probe of Inflationary Cosmology - Intermediate Mission (EPIC-IM) is a concept for the NASA Einstein Inflation Probe satellite. EPIC-IM is designed to characterize the polarization properties of the Cosmic Microwave Background to search for the B-mode polarization signal characteristic of gravitational waves generated during the epoch of Inflation in the early universe. EPIC-IM employs a large focal plane with 11,000 detectors operating in 9 wavelength bands to provide 30 times higher sensitivity than the currently operating Planck satellite. The optical design is based on a wide-field 1.4 m crossed-Dragone telescope, an aperture that allows not only comprehensive measurements of Inflationary B-mode polarization, but also measurements of the E-mode and lensing polarization signals to cosmological limits, as well as all-sky maps of Galactic polarization with unmatched sensitivity and angular resolution. The optics are critical to measuring these extremely faint polarization signals, and any design must meet demanding requirements on systematic error control. We describe the EPIC-IM crossed Dragone optical design, its polarization properties, and far-sidelobe response.
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Huan Tran, Huan Tran, Brad Johnson, Brad Johnson, Mark Dragovan, Mark Dragovan, James Bock, James Bock, Abdullah Aljabri, Abdullah Aljabri, Alex Amblard, Alex Amblard, Daniel Bauman, Daniel Bauman, Marc Betoule, Marc Betoule, Talso Chui, Talso Chui, Loris Colombo, Loris Colombo, Asantha Cooray, Asantha Cooray, Dustin Crumb, Dustin Crumb, Peter Day, Peter Day, Clive Dickenson, Clive Dickenson, Darren Dowell, Darren Dowell, Sunil Golwala, Sunil Golwala, Krzysztof Gorski, Krzysztof Gorski, Shaul Hanany, Shaul Hanany, Warren Holmes, Warren Holmes, Kent Irwin, Kent Irwin, Brian Keating, Brian Keating, Chao-Lin Kuo, Chao-Lin Kuo, Adrian Lee, Adrian Lee, Andrew Lange, Andrew Lange, Charles Lawrence, Charles Lawrence, Steve Meyer, Steve Meyer, Nate Miller, Nate Miller, Hien Nguyen, Hien Nguyen, Elena Pierpaoli, Elena Pierpaoli, Nicolas Ponthieu, Nicolas Ponthieu, Jean-Loup Puget, Jean-Loup Puget, Jeff Raab, Jeff Raab, Paul Richards, Paul Richards, Celeste Satter, Celeste Satter, Mike Seiffert, Mike Seiffert, Meir Shimon, Meir Shimon, Brett Williams, Brett Williams, Jonas Zmuidzinas, Jonas Zmuidzinas, } "Optical design of the EPIC-IM crossed Dragone telescope", Proc. SPIE 7731, Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave, 77311R (5 August 2010); doi: 10.1117/12.857423; https://doi.org/10.1117/12.857423
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