Next Generation Sub-millimetre Wave Focal Plane Array Coupling Concepts - An ESA TRP project to develop multichroic focal plane pixels for future CMB polarisation experiments
Paper in proceedings, 2016

The main objective of this activity is to develop new focal plane coupling array concepts and technologies that optimise the coupling from reflector optics to the large number of detectors for next generation sub millimetre wave telescopes particularly targeting measurement of the polarization of the cosmic microwave background (CMB). In this 18 month TRP programme the consortium are tasked with developing, manufacturing and experimentally verifying a prototype multichroic pixel which would be suitable for the large focal plane arrays which will be demanded to reach the required sensitivity of future CMB polarization missions. One major development was to have multichroic operation to potentially reduce the required focal plane size of a CMB mission. After research in the optimum telescope design and definition of requirements based on a stringent science case review, a number of compact focal plane architecture concepts were investigated before a pixel demonstrator consisting of a planar mesh lens feeding a backend Resonant Cold Electron Bolometer RCEB for filtering and detection of the dual frequency signal was planned for manufacture and test. In this demonstrator the frequencies of the channels was chosen to be 75 and 105 GHz in the w band close to the peak CMB signal. In the next year the prototype breadboards will be developed to test the beams produced by the manufactured flat lenses fed by a variety of antenna configurations and the spectral response of the RCEBs will also be verified.

Author

N. Trappe

Maynooth University

M. Bucher

APC - AstroParticule et Cosmologie

P. de Bernardis

Sapienza University of Rome

J. Delabrouille

APC - AstroParticule et Cosmologie

P. Deo

University of Manchester

M. De Petris

Sapienza University of Rome

S. Doherty

Maynooth University

A. Ghribi

APC - AstroParticule et Cosmologie

M. Gradziel

Maynooth University

Leonid Kuzmin

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

B. Maffei

University of Manchester

Sumedh Mahashabde

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

S. Masi

Sapienza University of Rome

J. A. Murphy

Maynooth University

F. Noviello

University of Manchester

C. O'Sullivan

Maynooth University

L. Pagano

Sapienza University of Rome

F. Piacentini

Sapienza University of Rome

M. Piat

APC - AstroParticule et Cosmologie

G. Pisano

Cardiff University

M. Robinson

University of Manchester

R. Stompor

APC - AstroParticule et Cosmologie

A. Tartari

APC - AstroParticule et Cosmologie

M. van der Vorst

ESTEC

P. Verhoeve

ESTEC

Proceedings of SPIE - The International Society for Optical Engineering

0277786X (ISSN) 1996756X (eISSN)

Vol. 9914 Part 1 UNSP 991412- 991412

Subject Categories

Astronomy, Astrophysics and Cosmology

Atom and Molecular Physics and Optics

DOI

10.1117/12.2231267

ISBN

978-1-5106-0207-6

More information

Latest update

9/6/2018 7