我国科学家实现全光逻辑运算与多光谱图像识别_大同市网站建设_网站建设公司_网站建设设计制作

<article><section data-type="rtext"><p>【环球网科技综合报道】5月6日消息，根据中国科学院官方信息，近日，中国科学院深圳先进技术研究院研究团队利用氧化铅（PbOx）包覆黑磷（BP），构建了一种新型光电忆阻器。该器件不仅能大幅提升稳定性，还具备非易失性存储能力，可用于构建光控人工神经网络。同时，该器件还具有从紫外到近红外宽光谱响应特性。在不同波长光照下，器件会做出完全相反的响应。只需改变光波长和强度，就能灵活调控器件的通断状态。</p><p><i class="pic-con"></p><p>基于这种光谱可调的双极性响应，研究团队进一步实现了14种全光操纵布尔逻辑运算，并完成多光谱遥感图像的分类识别任务。在16种作物类别识别中，系统准确率最高达到98.6%，展示了该器件在全光神经形态视觉与智能识别领域的良好应用前景。</p><p>据悉，相关研究成果发表在《先进材料》（Advanced Materials）上。</p><p>资料显示，自然界中，鹰眼能捕捉紫外光下的猎物踪迹，蛇眼能感知红外热源，而人眼只能感知有限的可见光。如果让机器同时拥有“鹰眼到蛇眼”的宽谱视力，就能在遥感监测等领域捕捉更多隐藏信息。要实现这种能力，关键器件需要准确感知和识别不同波段光，同时还能像大脑一样完成感知、存储与计算。光电忆阻器恰好具备这种“感、存、算一体”的特性，被认为是神经形态视觉系统的重要基础。（青云）</p></section><img src='/image/153789-0' alt='我国科学家实现全光逻辑运算与多光谱图像识别'>                        </div>
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