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毫米波波段电光成像系统使用偏振CMOS图像传感器和放大光学局部振荡器源.

Ryoma Okada1,2, Maya Mizuno2, Tomoaki Nagaoka2

  • 1Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5, Takayama, Ikoma 630-0192, Nara, Japan.

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科学领域:

  • 光电学是指光电子产品.
  • 微波工程 微波工程
  • 图像技术技术的成像技术

背景情况:

  • 毫米波 (MMW) 电场测量对于高频电子和传感应用至关重要.
  • 现有的MMW成像技术经常面临空间分辨率,灵敏度或速度的限制.
  • 开发紧和高性能MMW电场成像系统仍然是一个活跃的研究领域.

研究的目的:

  • 开发和演示一种新的毫米波电场成像系统.
  • 在MMW电场测量中实现高空间分辨率和灵敏度.
  • 利用先进的偏振测量技术和CMOS制造来提高成像性能.

主要方法:

  • 使用0.35-μm标准CMOS工艺制造一个偏振图像传感器,采用差分放大器来增强信号噪声比.
  • 使用电光晶体进行MMW-to-optical转换.
  • 使用光学调制器和半导体光学放大器生成高质量的光学局部振荡器 (LO) 信号.

主要成果:

  • 毫米波电场成像的成功演示.
  • 实现了30×60μm的空间分辨率.
  • 以每秒1 (FPS) 的速度进行成像,相当于2400像素/秒.

结论:

  • 开发的系统为高分辨率毫米波电场成像提供了一个有前途的方法.
  • 集成的CMOS偏振图像传感器和电光晶体使敏感和准确的MMW测量.
  • 该系统的性能表明了各种应用的潜力,需要详细的电场特征.