Feasibility of cosmic microwave background observations using radiometers based on whispering gallery mode resonators

Bibcode
2020NewA...7801367D
DOI
10.1016/j.newast.2020.101367
De Miguel-Hernández, Javier; Hoyland, Roger J.
Bibliographical reference

New Astronomy

Advertised on:
7
2020
Journal
New Astronomy
Number of authors
2
IAC number of authors
2
Citations
0
Refereed citations
0
Description
The fundamentals of the whispering gallery mode (WGM) resonators are well established in the literature, with several successful proof-of-concept experiments. One remarkable benefit of this technology is the room-temperature operation. This characteristic could be used to build a new generation of radiometers that do not need to be cooled down to cryogenic temperatures to reach high sensitivities. In this article, a study of the viability of technological transfer is undertaken, beginning with a brief review of the theoretical background that will be applied and leading to a proposal for a novel spectro-polarimeter design. Simulations for a radiometer based on WGM resonance are analyzed and compared with state-of-the-art coherent receivers. The results are then discussed, finding that although promising, WGM technology needs R&D in several directions in order to be competitive, whose are suggested by the authors with the idea of inspiring the work of the researchers in the field towards a new direction or approach.
Related projects
The QUIJOTE experiment at the Teide Observatory
QUIJOTE CMB Experiment (Q-U-I JOint TEnerife CMB Experiment)

QUIJOTE es un programa de dos telescopios y su batería de instrumentos, instalados en el Observatorio del Teide, dedicados fundamentalmente a la caracterización de la polarización del Fondo Cósmico de Microondas, en el rango de frecuencias de 10-42 GHz.

José Alberto
Rubiño Martín
In progress
Type
Refereed
Cosmology & Astroparticles (CYA, CTA)

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