概括
我们开发了一种用于动感应探测器 (KID) 的光学堆,以提高光吸收. 这种设计实现了近单位的吸收,使光学和近红外范围的光子检测更有效.
科学领域:
- 超导装置的超导器件
- 光学工程是指光学工程.
- 材料科学 材料科学 材料科学
背景情况:
- (Al) 是动力感应探测器 (KID) 的标准材料,因为它与微型制造兼容.
- 在Al吸收器中实现高光学吸收是很困难的,因为Al在光学波长上强烈反射光.
- 高效的光吸收对于高性能光子计数和能量分辨探测器至关重要.
研究的目的:
- 为基于AI的KID设计一个高吸收的光学堆.
- 为了克服在光学波长的Al吸收器中高反射率的挑战.
- 为了使光学到近红外 (NIR) 频谱中的光子能够有效地检测.
主要方法:
- 在抗反射 (AR) 涂层和介电式分布式布拉格反射器之间嵌入薄薄的Al薄膜.
- 使用传输矩阵模型来计算光学性能.
- 制造和测量设计堆的光学特性.
主要成果:
- 在一个特定的波长 (1518 nm) 中,通过拟议的光学堆实现了接近单元的吸收率 (≈98.9%).
- 实验反射和传输测量与理论计算非常相匹配.
- 通过使用多层AR涂层,在更广泛的波长范围内 (≈230nm) 证明了≥70%的吸收率的初步结果.
结论:
- 开发的光学堆设计显著提高了Al KIDs的光吸收.
- 这种方法克服了在光学波长上的固有高反射性.
- 该设计有助于开发高效的光子计数和能量分辨的基于Al的KID,用于光学和NIR应用.
相关概念视频
01:15High-Performance Liquid Chromatography: Types of Detectors
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The role of the detectors in High-Performance Liquid Chromatography (HPLC) is to analyze the solutes as they exit from the chromatographic column. The detector recognizes the solute's property and generates corresponding electrical signals, which are converted into a readable graph of the detector's response versus elution time called a chromatogram at the computer. There are several types of HPLC detectors, each with its own advantages and limitations, depending on the analyte...
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01:19Mass Analyzers: Common Types
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