A Frequency Selective Surface based focal plane receiver for the OLIMPO balloon-borne telescope
Journal article, 2015
We describe here a focal plane array of Cold-Electron Bolometer (CEB) detectors integrated in a Frequency Selective Surface (FSS) for the 350 GHz detection band of the OLIMPO balloon-borne telescope. In our architecture, the two terminal CEB has been integrated in the periodic unit cell of the FSS structure and is impedance matched to the embedding impedance seen by it and provides a resonant interaction with the incident sub-mm radiation. The detector array has been designed to operate in background noise limited condition for incident powers of 20 pW to 80 pW, making it possible to use the same pixel in both photometric and spectrometric configurations. We present high frequency and dc simulations of our system, together with fabrication details. The frequency response of the FSS array, optical response measurements with hot/cold load in front of optical window and with variable temperature black body source inside cryostat are presented. A comparison of the optical response to the CEB model and estimations of Noise Equivalent power (NEP) is also presented.
Cold Electron Bolometer
Frequency Selective Surface
OLIMPO
Author
Sumedh Mahashabde
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Alexander Sobolev
National Research University of Electronic Technology (MIET)
Moscow State University
Andreas Bengtsson
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Daniel Andrén
Chalmers, Applied Physics, Bionanophotonics
Mikhail Tarasov
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Maria Salatino
Sapienza University of Rome
P. de Bernardis
Sapienza University of Rome
S. Masi
Sapienza University of Rome
Leonid Kuzmin
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
IEEE Transactions on Terahertz Science and Technology
2156-342X (ISSN) 21563446 (eISSN)
Vol. 5 1 145-152 6936936Subject Categories
Astronomy, Astrophysics and Cosmology
Condensed Matter Physics
Infrastructure
Nanofabrication Laboratory
DOI
10.1109/TTHZ.2014.2362010