ISSTT Proceedings

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1.1 THz Multi-pixel Heterodyne Receiver for APEX

Authors:
N. Hurtado, U. U. Graf, C. E. Honingh, K. Jacobs, M. P. Westig, R. Güsten, and J. Stutzki
Abstract:
We present the current development of a 9 pixel 1.1 THz heterodyne receiver for APEX in the Atacama Desert, Chile. The multi-pixel receiver greatly enhances the science output under the difficult observing conditions in this wavelength regime. In a heterodyne array receiver, each detector beam has to be collimated individually before combining the beams in the common optics. This task is performed by the focal plane unit (FPU) modeled after the CHARM (Compact Heterodyne Array Receiver Module)1 concept. The FPU consists of 3×3 pixels, each of them formed by a two mirror collimator arranged as an off-axis Cassegrain system and a feed horn. We employ a monolithic integrated optics approach, so no internal optics alignment is required.
Categories:
Poster Session, Miscellaneous
Year:
2011
Session:
PS
Full-text:
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Page Number(s):
100