Metamaterials with negative index of refraction have been demonstrated for microwaves and IR and more recently for sound.
In theory, could a metamaterial, with patterns smaller than 1/2 the De Broglie wavelength of an electron, be used for negative refraction of electrons?
QUOTE (cyber stealth+Jul 23 2009, 12:15 AM)
Metamaterials with negative index of refraction have been demonstrated for microwaves and IR and more recently for sound.
In theory, could a metamaterial, with patterns smaller than 1/2 the De Broglie wavelength of an electron, be used for negative refraction of electrons?
Nice idea....Maybe for atoms, seems the de broglie wavelength for electrons would be so small that I would think not possible to engineer (and construct) a material on such a microscopic level which would have both negative permeability adn neg. permittivity. No natural substance has it, isn't that why larger macroscopic structures have been used?
Not familiar as to how they achieved neg. permeabilty constant.
Lunar
In theory, could a metamaterial, with patterns smaller than 1/2 the De Broglie wavelength of an electron, be used for negative refraction of electrons?
Nice idea....Maybe for atoms, seems the de broglie wavelength for electrons would be so small that I would think not possible to engineer (and construct) a material on such a microscopic level which would have both negative permeability adn neg. permittivity. No natural substance has it, isn't that why larger macroscopic structures have been used?
Not familiar as to how they achieved neg. permeabilty constant.
Lunar
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