一个超薄的隐形皮肤斗可见光
Xingjie Ni1, Zi Jing Wong1, Michael Mrejen1
1NSF Nanoscale Science and Engineering Center (NSEC), University of California, Berkeley, CA 94720, USA.
Science (New York, N.Y.)
|September 19, 2015
概括
研究人员开发了一种超薄的隐形皮肤斗, 这种新的斗通过恢复反射光相来重新调节光线, 克服了传统斗的局限性.
科学领域:
- 光学和光学
- 材料科学
- 超材料
背景情况:
- 传统的超材料光学斗依赖于体积大,体积的材料特性来曲光.
- 现有的地毯外套通常会在反射光中引入可检测的相位变化.
- 这些局限性阻碍了光学隐蔽的可扩展性和实际应用.
研究的目的:
- 通过实验展示一种新的超薄隐形皮肤斗.
- 隐藏任意形状的三维物体.
- 通过完全恢复反射光的相位来实现遮蔽.
主要方法:
- 制造一个超薄的超表面罩,厚度约为80纳米.
- 使用分布式相位转移在金属表面重定向光.
- 在730纳米波长的实验验证.
主要成果:
- 一个成功的隐形皮肤斗隐藏一个3D对象.
- 完全恢复反射光的阶段,消除可检测性.
- 斗的超薄性质 (波长的九分之一) 与大型的传统设计形成对比.
结论:
- 开发的超表面皮肤罩在光学遮技术方面取得了重大进步.
- 这种超薄的相位恢复方法克服了以前的隐蔽方法的关键局限性.
- 这项技术有潜力扩展到隐藏宏观物体.
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