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US 7,745,790 B2Granted
Negative refractive index device for generating terahertz or microwave radiation and method of operation thereof
AssigneeAlcatel-Lucent USA Inc.
InventorsAref Chowdhury, John A. Tataronis
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Abstract
A negative refractive index device and a method of generating radiation. In one embodiment, the device includes: (1) an optical input configured to receive light and (2) an optical medium having a negative index of refraction and a second-order nonlinearity proximate a center frequency of the light, coupled to the optical input and configured to resonate in response to the light to yield radiation having a phase velocity based on a group velocity of the light.
Claims17
A negative refractive index device, comprising:
- an optical input configured to receive light;
- and
- an optical medium having a negative index of refraction and a second-order nonlinearity proximate a center frequency of said light, coupled to said optical input and configured to resonate in response to said light to yield radiation of between about 0.3 to 50 terahertz having a phase velocity that varies with a group velocity of said light.
A method of generating radiation, comprising:
- receiving light into an optical input;
- and
- receiving said light into an optical medium having a negative index of refraction and a second-order nonlinearity proximate a center frequency of said light, said optical medium resonating in response thereto to yield said radiation of between about 0.3 to about 50 terahertz, said radiation having a phase velocity that varies with a group velocity of said light.
A negative refractive index device, comprising:
- a light pump coupled to an optical input and configured to generate pulses of light;
- said optical input coupled to said light pump and configured to receive said pulses of light;
- and
- a metamaterial having a negative index of refraction and a second-order nonlinearity proximate a center frequency of said light, coupled to said optical input and configured to resonate in response to said pulses of light to yield radiation of between about 0.3 to 50 terahertz having a phase velocity that varies with a group velocity of said pulses of light.
1 more element
Dependencies are inferred from the claim text.