Architecture and applications of a high resolution gated SPAD image sensor
Architecture and applications of a high resolution gated SPAD image sensor
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DOI：
10.1364/oe.22.017573
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发表时间：
2014-07-14
期刊：
影响因子：
3.8
通讯作者：
Charbon, Edoardo
中科院分区：
文献类型：
--
作者：
Burri, Samuel;Maruyama, Yuki;Charbon, Edoardo
我们提出了最大分辨率的图像传感器的结构和三个应用的基础上单光子雪崩二极管（SPAD）出版日期。该传感器采用高压CMOS工艺制造，分辨率为512 × 128像素，间距为24 μ m。5%的填充因子可以通过使用微透镜增加到30%。为了精确控制曝光和时间分辨成像，我们使用快速全局选通信号来定义小至4 ns的曝光窗口。门边缘位置的均匀性类似于140 ps（FWHM）在整个阵列，而像素内数字计数使帧速率高达156 kfps。目前，我们的相机被用作具有高时间分辨率的高灵敏度传感器，用于从荧光寿命测量到荧光相关光谱和生成真随机数的应用。(C)2014年美国光学学会
We present the architecture and three applications of the largest resolution image sensor based on single-photon avalanche diodes (SPADs) published to date. The sensor, fabricated in a high-voltage CMOS process, has a resolution of 512 x 128 pixels and a pitch of 24 mu m. The fill-factor of 5% can be increased to 30% with the use of microlenses. For precise control of the exposure and for time-resolved imaging, we use fast global gating signals to define exposure windows as small as 4 ns. The uniformity of the gate edges location is similar to 140 ps (FWHM) over the whole array, while in-pixel digital counting enables frame rates as high as 156 kfps.Currently, our camera is used as a highly sensitive sensor with high temporal resolution, for applications ranging from fluorescence lifetime measurements to fluorescence correlation spectroscopy and generation of true random numbers. (C) 2014 Optical Society of America