Optical device and optical system including the same
AssigneesSamsung Electronics Co., Ltd., The Board of Trustees of the Leland Stanford Junior University
InventorsWonjae Joo, Mark L. Brongersma, Juhyung Kang
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Abstract
An optical device and an optical system including the optical device are provided. The optical device may include a reflective layer and a plurality of nano-beams spaced apart from the reflective layer. The plurality of nano-beams may be formed as a metasurface. The nano-beams may have a pattern structure having a plurality of metasurface forms, and the distance of the gaps between the plurality of nano-beams and the reflective layer may be adjustable individually or as a whole. The optical device may be a beam steering device or an optical phase modulator.
Claims10
An optical device comprising:
- a reflective layer;
- and
- a plurality of nano-beams spaced apart from the reflective layer, the plurality of nano-beams being formed as a metasurface,
- wherein a distance of a gap between the reflective layer and each of the plurality of nano-beams is adjustable.
An optical system comprising:
- an optical device comprising:
- a reflective layer, and
- a plurality of nano-beams spaced apart from the reflective layer, the plurality of nano-beams being formed as a metasurface, wherein a distance of a gap between the reflective layer and each of the plurality of nano-beams is adjustable;
- a light source configured to irradiate light to the optical device;
- a detector configured to detect at least one of a modulated beam and a steered beam from the optical device;
- and
- a driving circuit configured to control at least one of the optical device and the detector.
Dependencies are inferred from the claim text.