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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2501.03827 |
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| _version_ | 1866911101019488256 |
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| author | Yates, Stephen J. C. Laguna, Alejandro Pascual Jellema, Willem Castillo-Dominguez, Edgar Ferrari, Lorenza Lap, Bram Murugesan, Vignesh Silva, Jose R. G. Thoen, David Veenendaal, Ian Baselmans, Jochem J. A. |
| author_facet | Yates, Stephen J. C. Laguna, Alejandro Pascual Jellema, Willem Castillo-Dominguez, Edgar Ferrari, Lorenza Lap, Bram Murugesan, Vignesh Silva, Jose R. G. Thoen, David Veenendaal, Ian Baselmans, Jochem J. A. |
| contents | We present measurements and simulations of the polarization purity of leaky lens-antenna coupled microwave Kinetic Inductance Detectors (KIDs) at 1.5 THz. We find the integrated cross-polarization level to be at -21.5 dB for 1 f\#$λ$ spatial sampling. The measurements agree well with the theoretical description which is based on a combination of in-transmission simulation of the antenna feed, and an in-reception analysis of the antenna-KID system. Combined with the measured noise equivalent power of 5--7$\times$10$^{-20}$ W/$\sqrt{\mathrm{Hz}}$, these detectors are excellent candidates for large scale and high performance imaging polarimetric instruments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_03827 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Demonstration of Ultra-Sensitive KIDs for Future THz Space Borne Polarimeters Yates, Stephen J. C. Laguna, Alejandro Pascual Jellema, Willem Castillo-Dominguez, Edgar Ferrari, Lorenza Lap, Bram Murugesan, Vignesh Silva, Jose R. G. Thoen, David Veenendaal, Ian Baselmans, Jochem J. A. Instrumentation and Methods for Astrophysics We present measurements and simulations of the polarization purity of leaky lens-antenna coupled microwave Kinetic Inductance Detectors (KIDs) at 1.5 THz. We find the integrated cross-polarization level to be at -21.5 dB for 1 f\#$λ$ spatial sampling. The measurements agree well with the theoretical description which is based on a combination of in-transmission simulation of the antenna feed, and an in-reception analysis of the antenna-KID system. Combined with the measured noise equivalent power of 5--7$\times$10$^{-20}$ W/$\sqrt{\mathrm{Hz}}$, these detectors are excellent candidates for large scale and high performance imaging polarimetric instruments. |
| title | Demonstration of Ultra-Sensitive KIDs for Future THz Space Borne Polarimeters |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2501.03827 |