标题： 基于准集中参数谐振器的动能电感探测器中的交叉极化抑制 显示英文标题

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

摘要： 运动电感探测器（KIDs）由于其高灵敏度、自然多路复用能力和可扩展的制造工艺，已成为毫米波和亚毫米波天文学的领先技术。 在偏振敏感的应用中，如宇宙微波背景（CMB）研究，交叉偏振，或对正交偏振的非预期响应，会对测量精度造成显著限制。 这项工作研究了蜿蜒集中元件KIDs（LEKIDs）中的交叉偏振来源，特别强调了互指电容器中的寄生电流的作用。 本文比较了传统LEKIDs和准集中谐振器设计，结果表明移除电容元件可能提高交叉偏振区分能力，确认了电容器对偏振泄漏的贡献。 显示英文摘要

摘要： 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, poses a significant limitation to measurement fidelity. This work investigates the origin of cross-polarization in meandered Lumped Element KIDs (LEKIDs), with particular emphasis on the role of parasitic currents in the interdigitated capacitor. A comparative study between conventional LEKIDs and a quasi-lumped resonator design is presented, demonstrating that removing the capacitive element may improve cross-polarization discrimination, confirming the capacitor's contribution to polarization leakage.