SPATIAL LIGHT MODULATORS, HOLOGRAPHIC 3-DIMENSIONAL DISPLAY APPARATUSES INCLUDING THE SPATIAL LIGHT MODULATORS, AND METHODS OF MODULATING SPATIAL LIGHT
First Claim
1. A spatial light modulator, comprising:
- a refraction layer including a first region and a second region with refractive indices different from each other; and
a metal thin film on a lower face of the refraction layer that is configured to generate surface plasmons due to light incident on the metal thin film via the refraction layer;
wherein when first light is incident on the refraction layer, a phase difference between light reflected by the first region and light reflected by the second region occurs.
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Accused Products
Abstract
A spatial light modulator may include a refraction layer including first and second regions with refractive indices different from each other; and/or a metal thin film on a lower face of the refraction layer configured to generate surface plasmons due to light incident on the metal thin film via the refraction layer. When first light is incident on the refraction layer, a phase difference between light reflected by the first and second regions may occur. A spatial light modulator may include a metal thin film and a refraction layer on the metal thin film. The refraction layer may include a first region with a first refractive index and a second region with a second refractive index different from the first refractive index. When first light is incident on the refraction layer, there may be a phase difference between light reflected from the first and second regions.
69 Citations
20 Claims
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1. A spatial light modulator, comprising:
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a refraction layer including a first region and a second region with refractive indices different from each other; and a metal thin film on a lower face of the refraction layer that is configured to generate surface plasmons due to light incident on the metal thin film via the refraction layer; wherein when first light is incident on the refraction layer, a phase difference between light reflected by the first region and light reflected by the second region occurs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of modulating spatial light, comprising:
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placing a refraction layer, including a first region and a second region, on a metal thin film; changing a refractive index of the first region by irradiating first light including hologram information onto the first region; and generating surface plasmons at an interface between the refraction layer and the metal thin film when second light is incident on the refraction layer, and causing light reflected by the first region and light reflected by the second region to have a phase difference. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification