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US 12,140,734 B2Granted
Optical thin film for meta-surface and meta-optical device including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJeongyub Lee, Changseung Lee, Kideok Bae, Eunhyoung Cho
Life of this patent
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Abstract
An optical thin film includes a support layer and a dielectric layer on the support layer. The dielectric layer has a refractive index greater than that of the support layer. The dielectric layer includes a compound ADX, which includes a Group 3 element A, a Group 5 element D, and an element X having an atomic weight smaller than an atomic weight of A or D. The optical thin film may exhibit light transmission having a high refractive index and low absorptivity.
Claims14
An optical thin film comprising:
- a support layer;
- and
- a dielectric layer on the support layer, wherein
- the dielectric layer has a refractive index that is greater than a refractive index of the support layer,
- the dielectric layer includes a compound ADXa,
- the compound ADX includes a Group 3 element A, a Group 5 element D, an element X having an atomic weight that is smaller than an atomic weight of the element A or an atomic weight of the element D,
- wherein 0<a<1, and ADXa has a refractive index of greater than 3 and an absorptivity of less than 3×10−3 for a light in a visible wavelength range.
4 more elements
Dependencies are inferred from the claim text.