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US 10,503,043 B2Granted
Beam steering device and system including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSunil Kim, Changgyun Shin, Jungwoo Kim, Duhyun Lee
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Abstract
Provided are a beam steering device and a system including the same. The beam steering device includes a conversion layer having a refractive index which is variable via electrical control and a plurality of nanoantenna pattern layers stacked on the conversion layer. The refractive index of the conversion layer is electrically changed by a driver.
Claims20
A beam steering device comprising:
- a conversion layer comprising a material with a refractive index which is variable via electrical control;
- a driver configured to electrically change the refractive index of the conversion layer;
- a plurality of nanoantenna pattern layers comprising an upper nanoantenna pattern layer and a lower nanoantenna pattern layer vertically stacked on the conversion layer, such that the lower nanoantenna pattern layer is disposed between the conversion layer and the upper nanoantenna pattern layer, wherein each of the plurality of nanoantenna pattern layers comprises an array of a plurality of nanoantenna elements, and
- an insulating layer disposed between the upper nanoantenna pattern layer and the lower nanoantenna pattern layer.
1 more element
A system comprising:
- a beam steering device comprising:
- a conversion layer comprising a material with a refractive index which is variable via electrical control,
- a driver configured to electrically change the refractive index of the conversion layer,
- a plurality of nanoantenna pattern layers comprising an upper nanoantenna pattern layer and a lower nanoantenna pattern layer vertically stacked on the conversion layer, such that the lower nanoantenna pattern layer is disposed between the conversion layer and the upper nanoantenna pattern layer, wherein each of the plurality of nanoantenna pattern layers comprises an array of a plurality of nanoantenna elements, and wherein the plurality of nanoantenna pattern layers are configured to steer an incident beam such that the incident beam is reflected at a desired angle, and
- an insulating layer disposed between the upper nanoantenna pattern layer and the lower nanoantenna pattern layer;
- a driving circuit, electrically connected to the driver, the driving circuit configured to electrically change the refractive index of the conversion layer of the beam steering device via the driver;
- and
- a light source configured to emit the incident beam to the beam steering device.
5 more elements
Dependencies are inferred from the claim text.