中波红外探测器像素的侧腔增强导模共振结构。

IF 3.3 2区物理与天体物理 Q2 OPTICS

Optics express Pub Date : 2025-07-28 DOI:10.1364/OE.564793

S Purkait, N C Mansfield, Y Tischenko, A Raju, W Reggio, A J Muhowski, D Wasserman, V A Podolskiy

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引用次数: 0

摘要

我们介绍了超紧凑中波红外光电探测器像素的设计、制造和光学特性。我们的设计依赖于一个引导模式共振结构，将入射的中红外光限制在全外延生长材料堆的250 nm厚的吸收区，以及一个混合腔引导模式共振，将模式限制在横向。所得到的像素具有深亚波长厚度和约2λo的横向尺寸，预计可实现50%的外部量子效率。我们的工作为真正紧凑的中波红外像素打开了大门，它提供了低暗电流、室温操作和小横向尺寸的综合优势。

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Lateral cavity-enhanced guided mode resonance structures for mid-wave infrared photodetector pixels.

We present the design, fabrication, and optical characterization of ultra-compact mid-wave infrared photodetector pixels. Our design relies on a guided mode resonance structure to confine incident mid-infrared light to the 250 nm-thick absorber region of an all-epitaxially-grown material stack and a hybrid cavity-guided mode resonance to confine the mode in the lateral direction. The resulting pixel, with deep subwavelength thickness and lateral dimensions on the order of ∼2λ_o, is predicted to achieve external quantum efficiency of the order of 50%. Our work opens the door for truly compact mid-wave infrared pixels that offer the combined benefits of low dark current, room temperature operation, and small lateral size.

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来源期刊

Optics express 物理-光学

CiteScore

6.60

自引率

15.80%

发文量

5182

审稿时长

2.1 months

期刊介绍： Optics Express is the all-electronic, open access journal for optics providing rapid publication for peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics.