在光子晶体中的Cerenkov辐射
Chiyan Luo1, Mihai Ibanescu, Steven G Johnson
1Department of Physics and Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Science (New York, N.Y.)
|January 18, 2003
概括
光子晶体中的Cerenkov辐射的行为与传统材料的不同. 它没有速度值,可以向后发射,在粒子检测和辐射生成中提供了新的应用.
科学领域:
- 光学和光子学 在光学和光子学.
- 粒子物理学 粒子物理学
背景情况:
- 传统的塞伦科夫辐射需要一个速度值,并且向前发射.
- 了解粒子-物质相互作用对于先进的探测和辐射技术至关重要.
研究的目的:
- 为了研究光子晶体内Cerenkov辐射的独特特征.
- 探索无值和向后导向辐射发射的潜力.
主要方法:
- 在光子晶体结构中的带电粒子相互作用的理论分析.
- 辐射模式和光谱属性的模拟.
主要成果:
- 光子晶体Cerenkov辐射与过渡辐射结合在一起,消除了速度值.
- 在特定粒子速度范围内观察到向后指向的辐射圆和向后传播的塞伦科夫辐射.
结论:
- 光子晶体为切伦科夫辐射的特性提供了新的控制.
- 潜在的应用包括先进的速度敏感粒子探测器和可调节的频率辐射源.
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