一个超表面彩色路由器,为图像传感器应用程序提供RGB-NIR传感
Yoon Jin Hong1, Byeong Je Jeon2, Yu Geun Ki2
1Department of Semiconductor Systems Engineering, Korea University, Seoul, Korea.
Nanophotonics (Berlin, Germany)
|December 16, 2024
概括
研究人员开发了一种超表面光谱路由器,以提高CMOS图像传感器 (CIS) 的灵敏度. 这种纳米光子设备将可见光和近红外光分成四个通道,克服了像素大小的限制.
科学领域:
- 光电学是指光电子产品.
- 纳米光子学 纳米光子学
背景情况:
- CMOS图像传感器 (CIS) 对于在可见光和近红外光谱中捕获图像至关重要.
- 增加像素密度可以提高分辨率,但由于衍射极限而面临光学灵敏度的权衡.
- 传统的彩色过器在先进的CIS应用中限制了性能.
研究的目的:
- 为了克服CIS中的灵敏度-像素大小权衡.
- 引入一种基于纳米光子的新型光谱传感概念.
- 开发一种能够进行光谱分裂和路由以增强图像传感的超表面.
主要方法:
- 设计和优化了一个基于超表面的光谱路由器.
- 超表面控制特定光谱 (红色,绿色,蓝色,近红外) 的传输光相.
- 采用纳米制造技术,精确地进行地表结构化.
主要成果:
- 成功地将可见到近红外光谱分成四个不同的光学通道.
- 通过使用单层超表面,实现了R,G,B和NIR光的同时相控.
- 与传统的彩色过器系统相比,证明了更高的光学效率.
结论:
- 超表面光谱路由器有效地解决了小型化CIS的灵敏度限制.
- 这项技术可以为各种光学应用提供增强的光谱传感能力.
- 开发的超表面对图像传感器中的传统色彩过方法来说是一个显著的进步.
相关概念视频
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The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...