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Dual polarization kinetic inductance detectors for large imaging cameras at millimeter wave bands

Abstract: This work deals with the development of superconducting Kinetic Inductance Detectors (KIDs) for highly sensitive radio astronomy receivers within W-band (75 to 110 GHz). A bilayer based on superconducting titanium/aluminum (Ti/Al) thin films has been used for assessing its absorption performance in this frequency band at millikelvin temperature. A lumped-element inductor based on a 4th order Hilbert structure is designed to absorb the incoming radiation in two orthogonal linear polarizations. The development of a large-format camera prototype is presented. On one hand, ambient temperature quasi-optical characterization demonstrates a suitable absorption for both polarizations within the W-band. On the other hand, dark cryogenic characterization confirms the successful operation of the multiplexed KID devices providing high-quality factors and an operation yield of 97%. These results confirm these developments to be used in future polarimeter receivers.

Otras comunicaciones del congreso o articulos relacionados con autores/as de la Universidad de Cantabria

 Autoría: Artal E., Aja B., de la Fuente L., Pascual J.P., Villa E., de Ory M.C., Rodriguez D., Rollano V., Magaz M.T., Gomez A., Granados D.,

 Congreso: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy (12º : 2024 : Yokohama, Japón)

 Editorial: SPIE Society of Photo-Optical Instrumentation Engineers

 Fecha de publicación: 16/08/2024

 Nº de páginas: 7

 Tipo de publicación: Comunicación a Congreso

 DOI: 10.1117/12.3014677

 ISSN: 0277-786X,1996-756X

 Url de la publicación: https://doi.org/10.1117/12.3014677

Autoría

CALERO DE ORY, MARINA

RODRÍGUEZ RODRÍGUEZ, DAVID

ROLLANO, VÍCTOR

MAGAZ, M.T.

GÓMEZ GUTIÉRREZ, ALICIA

GRANADOS RUIZ, DANIEL