Metamaterial cloaking | Wikipedia audio article
Channel: wikipedia tts
Date: 06/05/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Metamaterial_cloaking


00:00:53 1 Electromagnetic metamaterials
00:04:58 1.1 Metamaterials and transformation optics
00:07:55 2 Science of cloaking devices
00:10:34 2.1 The properties of optics and light
00:12:31 2.2 Interest in the properties of optics and light
00:14:25 2.3 Perfect cloak and theory
00:15:41 2.4 Challenges presented by the first cloaking device
00:18:50 3 Usage of metamaterials
00:21:04 4 Device
00:21:35 4.1 Controlling electromagnetic fields
00:28:26 4.1.1 Application to cloaking devices
00:29:52 4.1.2 Cloaking hurdles
00:32:11 4.2 Optical conformal mapping and ray tracing in transformation media
00:33:42 4.3 Microwave frequencies
00:37:37 4.4 Infrared frequencies
00:38:32 4.5 Sonic frequencies
00:40:42 4.6 Invisibility in diffusive light scattering media
00:41:36 5 Cloaking attempts
00:41:46 5.1 Broadband ground-plane cloak
00:44:22 6 Other theories of cloaking
00:44:59 7 Institutional research
00:46:27 8 In the news



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SUMMARY
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Metamaterial cloaking is the usage of metamaterials in an invisibility cloak. This is accomplished by manipulating the paths traversed by light through a novel optical material. Metamaterials direct and control the propagation and transmission of specified parts of the light spectrum and demonstrate the potential to render an object seemingly  invisible. Metamaterial cloaking, based on transformation optics, describes the process of shielding something from view by controlling electromagnetic radiation. Objects in the defined location are still present, but incident waves are guided around them without being affected by the object itself.