Alejandro Pascual Laguna

Galaxy observations with DESHIMA 2.0

S. A. Brackenhoff, Akira Endo, Shinji Fujita, Shiro Ikeda et autres

DESHIMA 2.0 is an integrated superconducting spectrometer operating between 200 and 400 GHz with 339 spectral channels. Its deployment on the ASTE 10-m telescope marks a step forward for wide-band (sub)millimeter instruments that use MKID filterbanks with compact optics. To fully exploit …

nl, jp, se, us, es, de (code pays fourni par la source)

Development of broadband spectro-polarimetric arrays for next-generation CMB observations

Kenichi Karatsu, Shahab Dabironezare, Jochem J. A. Baselmans, Louis Marting et autres

Wideband (sub)millimeter observations of the galaxy cluster RX J1347.5-1145 with DESHIMA 2.0

Arend Moerman, Akira Endo, Stefanie Brackenhoff, Shinji Fujita et autres

We report on wideband (sub)millimeter observations of the galaxy cluster RX J1347.5-1145 with the DESHIMA 2.0 instrument, during its commissioning and science verification campaign at the ASTE 10-meter telescope in 2024. DESHIMA 2.0 is an on-chip spectrometer, operating between 200-400 GHz with …

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Reproduction package for "A High Efficiency Superconducting On-chip Filterbank with Directional Filters for Integral Field Units in the Sub-millimeter Regime"

Louis H. Marting, K. Karatsu, Leon Gert Gerard Olde Scholtenhuis, Shahab O. Dabironezare et autres

Reproduction package to "A High Efficiency Superconducting On-chip Filterbank with Directional Filters for Integral Field Units in the Sub-millimeter Regime" This reproduction package contains all data used to reproduce the graphs in the paper. See README.md in the data package for further …

nl, es, de (code pays fourni par la source)

Reproduction package for "A High Efficiency Superconducting On-chip Filterbank with Directional Filters for Integral Field Units in the Sub-millimeter Regime"

Louis H. Marting, K. Karatsu, Leon Gert Gerard Olde Scholtenhuis, Shahab O. Dabironezare et autres

Reproduction package to "A High Efficiency Superconducting On-chip Filterbank with Directional Filters for Integral Field Units in the Sub-millimeter Regime" This reproduction package contains all data used to reproduce the graphs in the paper. See README.md in the data package for further …

nl, es, de (code pays fourni par la source)

A High Efficiency Superconducting On-chip Filterbank with Directional Filters for Integral Field Units in the Sub-millimeter Regime

Louis H. Marting, Kenichi Karatsu, Leon G. G. Olde Scholtenhuis, Shahab O. Dabironezare et autres

Integrated superconducting spectrometers are developing to the point that they are enabling integral field units, providing large area spectral mapping capabilities for astronomy in the sub-millimeter band. However, these integral field units are only worthwhile if they have a high efficiency, but …

nl (code pays fourni par la source)

Dark Characterization of Ti/Al LEKIDs for the Search of Axions in the $W$-Band

Víctor Rollano, Alejandro Pascual Laguna, David Rodríguez, Martino Calvo et autres

We report the electrical (dark) characterization of lumped-element kinetic inductance detectors (LEKIDs) fabricated from a Titanium/Aluminum bilayer and designed for broadband absorption in the W–band (75-110 GHz). These detectors are prototypes for future Quantum Chromodynamics (QCD) axion search experiments within the Canfranc …

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Millimeter-Wavelength Lens-Absorber-Coupled Ti/Al Kinetic Inductance Detectors

Alejandro Pascual Laguna, Víctor Rollano, Aimar Najarro-Fiandra, David Rodríguez et autres

This work presents Ti/Al bi-layer Microwave Kinetic Inductance Detectors (MKIDs) based on lens-coupled spiral absorbers as the quasi-optical coupling mechanism for millimeterwavelength radiation detection. From simulations, the lenscoupled absorbers provide a 70% lens aperture efficiency in both polarizations over an octave band …

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Array de detectores de inductancia cinética de doble polarización a 1.3 THz

Enrique Villa Benito, Beatriz Aja Abelán, Victor Rollano Garcia, Luisa María de la Fuente Rodríguez et autres

Kinetic Inductance Detectors (KIDs) are promising candidates for far-infrared (FIR) astronomical missions due to their high sensitivity and natural multiplexing capability. This paper describes two dual-polarization KID absorber designs targeting the 1.3 THz band (230 nm wavelength range), based on two proposed …

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Cross-Polarization Reduction in Kinetic Inductance Detectors Based on Quasi-Lumped Resonators

Víctor Rollano, Martino Calvo, Alejandro Pascual Laguna, David Rodríguez et autres

Kinetic inductance detectors (KIDs) have emerged as a leading technology for millimeter- and submillimeter-wave astronomy due to their high sensitivity, natural multiplexing capabilities, and scalable fabrication. In polarization-sensitive applications—such as cosmic microwave background (CMB) studies—cross-polarization, or unintended response to the orthogonal polarization, …

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High Sensitivity W-Band LEKID-Based on-Chip Polarimeter

M. C. de Ory, Víctor Rollano, M. Calvo Gomez, David Rodríguez et autres

We have developed and characterized an on-chip polarimeter based on Lumped Element Kinetic Inductance Detectors (LEKIDs) optimized for the whole W -band frequency range ($\mathbf{7 5 - 1 1 0} \mathbf{G H z}$). The chip consists of two$\mathbf{3} \times \mathbf{3}$LEKID arrays fabricated …

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Demonstration of Ultrasensitive KIDs for Future THz Space Borne Polarimeters

S. J. C. Yates, Alejandro Pascual Laguna, Willem Jellema, Edgar Castillo-Domínguez et autres

We present measurements and simulations of the polarization purity of leaky lens-antenna coupled microwave Kinetic Inductance Detectors (KIDs) at 1.5 THz. From polarized phase and amplitude beam pattern measurements we find the integrated cross-polarization ratio to be at -21.5 dB for 1 …

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