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Updated: Jul 9, 2026

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在亚微米波长光学平台中的宽带波导合光探测器

Alperen Govdeli, Jared C Mikkelsen, Engjell Bebeti

|February 20, 2026

概括

研究人员开发了可见光和近红外光的光子光探测器. 这些设备提供高效率和速度,使微型光学系统能够用于生物光子学和量子信息等多种应用.

科学领域:

光子学和光学工程光子学和光学工程
半导体设备半导体设备
集成光学集成光学集成光学

背景情况:

光子学的进步使微型光学系统成为可能.
需要用于可见光和近红外光的高性能活性元件.

研究的目的:

开发用于短波长光子平台的波导合光探测器.
实现宽波长覆盖 (400-955nm) 的高性能.

主要方法:

光探测器在造厂制造的光子平台中的单体集成.
外部量子效率,暗电流和高速响应的表征.
评估雪崩运行和收益带宽产品.

主要成果:

展示了两个探测器变体,覆盖400-955nm.
外部量子效率>60% (400-748 nm) 和>12% (749-955 nm). 它们的量子效率是:
暗电流<2 pA在2-V反向偏差;光电子带宽高达18 GHz在785 nm.
收益带宽乘以374 GHz在785 nm的收益带宽.

结论:

成功地将高性能光电探测器集成到一个短波长光子平台中.
这些设备适用于需要广泛光谱覆盖和高速的应用.
实现生物光子学,量子信息,成像和光谱学的可扩展光学系统.

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UV–Vis Spectrometers

UV–Vis Spectrometers

The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell. Samples for...