METASURFACE WITH OVERCOAT AND EQUAL PILLAR SPACING

    公开(公告)号:US20230333282A1

    公开(公告)日:2023-10-19

    申请号:US18112152

    申请日:2023-02-21

    Applicant: Moxtek, Inc.

    CPC classification number: G02B1/002

    Abstract: Optical metasurfaces can manipulate a light wavefront without traditional lenses. They can include pillars with subwavelength dimensions on a substrate. The pillars can vary in size, shape, and spacing across a surface of the substrate. Each pillar size and shape can diffract incident light and provide a unique electromagnetic response. The metasurface can provide desired light wavefront manipulation without the thickness of traditional lenses. The metasurface can overcome the aberration problem of traditional lenses. An overcoat layer can be located at a distal-end of the pillars. Pillar pitch can be adjusted for uniform spacing between pillars, and uniform overcoat coverage. The overcoat layer can protect the pillars. An alternative to the overcoat layer is a solid fill-material filling gaps between the pillars.

    Wire Grid Polarizer with Silicon Dioxide Side Ribs on Silicon Wire

    公开(公告)号:US20230021232A1

    公开(公告)日:2023-01-19

    申请号:US17842026

    申请日:2022-06-16

    Applicant: Moxtek, Inc.

    Abstract: The wire grid polarizers 10 and 30 described herein, and wire grid polarizers made by methods described herein, can have high performance across a broad range of the ultraviolet spectrum and across a broad angle of incidence. These polarizers can be durable (resistant to heat, moisture, ultraviolet light, and oxidation). The polarizer can include an array of wires 15 on a substrate 11. Each wire 15 can have a silicon core 12 and a pair of silicon dioxide ribs 13. The core 12 can be sandwiched between the pair of ribs 13, with each rib 13 adjacent to a sidewall 12s of the core 12. A rib width W13 can be ≥4 nm. Each wire 15 can also include a silicon dioxide cap 14. The core 12 can be encircled by a silicon dioxide ring 17.

    Optical Device with a Flexible, Opaque-Region

    公开(公告)号:US20220381963A1

    公开(公告)日:2022-12-01

    申请号:US17730331

    申请日:2022-04-27

    Applicant: Moxtek, Inc.

    Abstract: Optical devices with different regions or pixels can form an image. An opaque-region 14 can be used to separate different pixels. Sometimes the optical device needs to be flexible, for elongation or stretching onto a curved surface. But, the opaque-region 14 can be damaged as it is stretched. A flexible optical device can include a modified opaque-region 14 for improved flexibility. The opaque-region 14 can include a thin-film 12 with multiple cavities 13, multiple zones 63, or both. Each zone 63 can have a shape optimized to both block incoming light and for flexibility. Each zone 63 can be encircled and separated from adjacent zones 63 by a groove 62. The cavities 13 and the separate zones 63 can allow the opaque-region 14 to bend or stretch without cracking or delamination of the thin-film 12.

    REFLECTIVE ULTRAVIOLET WIRE GRID POLARIZER
    8.
    发明公开

    公开(公告)号:US20230236347A1

    公开(公告)日:2023-07-27

    申请号:US18095322

    申请日:2023-01-10

    Applicant: Moxtek, Inc.

    CPC classification number: G02B5/3058

    Abstract: The reflective wire grid polarizers herein can withstand ultraviolet light without rapid degradation and can have high performance in the ultraviolet spectrum. In one example, each wire can include a metal layer, a pair of low index layers, a silicon layer, and a high index layer. The metal layer can be sandwiched between the pair of low index layers. The metal layer and the pair of low index layers can be sandwiched between the silicon layer and the high index layer. In another example, each wire can include a metal layer and a silicon layer. The silicon layer can be thicker than the metal layer. Thus, the silicon layer can be relatively thick, and can be the main polarizing component of the wire. The metal layer can be added for increased reflectance.

    Multilayer Grid Waveplate
    9.
    发明申请

    公开(公告)号:US20220179145A1

    公开(公告)日:2022-06-09

    申请号:US17523182

    申请日:2021-11-10

    Applicant: Moxtek, Inc.

    Abstract: The waveplates herein (A) can have high performance across a broad wavelength range and broad range of incident angles; (B) can be thin; and (C) can withstand a high temperature. The waveplates can include ribs 12 on a substrate 11 with a channel 13 between each pair of adjacent ribs 12. Each rib 12 can include the following layers in the following order moving outward from the substrate: a bottom-medium-layer BM (nBM), a high-layer H (nH), then a top-medium-layer TM (nTM). Each rib 12 can be located on a bottom-low-layer BL (nBL). A top-low-layer TL (nTL) can be located on a face TMF of the top-medium-layer TM farthest from the substrate 11. Relationships between indices of refraction of these layers can be nBL

Patent Agency Ranking