公开(公告)号：US20240345304A1

公开(公告)日：2024-10-17

申请号：US18382778

申请日：2023-10-23

Applicant: II-VI Delaware, Inc.

Inventor： Justin M. Hannigan ,  Christoph Greiner ,  Ramesh Sundaram ,  Juan Ni ,  Victoria Sorg ,  Dmitri Iazikov

IPC: G02B5/30 ,  G02F1/095

CPC classification number: G02B5/3058 ,  G02B5/3041 ,  G02F1/0955 ,  G02F1/165 ,  G02F2201/063 ,  G02F2202/10 ,  G02F2202/28

Abstract: An optical isolator includes a polarizer for receiving an optical signal from an optical signal source, a Faraday rotator disposed on one surface of the polarizer for rotating a polarization of the optical signal output by the polarizer and outputting the same as a rotator output optical signal, and an analyzer disposed on an opposing surface of the polarizer for receiving the rotator output optical signal and for outputting at least a part thereof. The polarizer and the analyzer each include a number of spaced elongated dielectric ridges. Each dielectric ridge has a length direction extending along the one surface of the Faraday rotator, pair of spaced sides that extend away from the one surface of the Faraday rotator and a top extending between the spaced sides opposite the one surface of the Faraday rotator. Each dielectric ridge includes an electrically conductive coating on each side of the dielectric ridge.

公开(公告)号：US20240201426A1

公开(公告)日：2024-06-20

申请号：US18382366

申请日：2023-10-20

Applicant: II-VI Delaware, Inc.

Inventor： Justin Hannigan ,  Dmitri Iazikov ,  Christoph Greiner ,  John Hostetler

IPC: G02B5/18

CPC classification number: G02B5/1857 ,  G02B5/1861 ,  G02B5/1866

Abstract: Systems and methods are provided for multi-layer high-efficiency dielectric grating with improved manufacturability. An example diffraction grating based morphology includes a plurality of grating lines; a plurality of intermediate layers; and a substrate bearing both of the plurality of grating lines and the plurality of intermediate layers; where one or more of the plurality of grating lines include a plurality of grating layers; and where at least two of the plurality of grating layers include different refractive index (RI) material. The plurality of grating layers includes one or more layers having low refractive index (RI) material and one or more layers having high refractive index (RI) material. The plurality of intermediate layers includes a plurality of matching layers and a plurality of dielectric layers.

公开(公告)号：US20240345300A1

公开(公告)日：2024-10-17

申请号：US18381527

申请日：2023-10-18

Applicant: II-VI Delaware, Inc.

Inventor： Justin M. Hannigan ,  Ramesh Sundaram ,  Victoria Sorg ,  Juan Ni ,  Dmitri Iazikov ,  Christoph Greiner

IPC: G02B5/30 ,  G02B1/16

CPC classification number: G02B5/3008 ,  G02B1/16 ,  G02B5/3058

Abstract: An optical polarizer includes a dielectric substrate and a number of elongated dielectric ridges positioned or disposed in spaced relation on a surface of the substrate. Each dielectric ridge has a length direction, curved or straight, that extends along the surface of the substrate. Each dielectric ridge also includes a pair of spaced sides that extend away from the surface of the substrate and a top extending between the spaced sides opposite the surface of the substrate. Each side of each dielectric ridge includes an electrically conductive coating.

公开(公告)号：US20240329416A1

公开(公告)日：2024-10-03

申请号：US18126667

申请日：2023-03-27

Applicant: II-VI Delaware, Inc.

Inventor： Dmitri Iazikov ,  Gary L. Herrit ,  Giovanni Barbarossa ,  Christoph Greiner ,  Tony Martin ,  Scott R. Kirkpatrick ,  Brad Pond

IPC: G02B27/14

CPC classification number: G02B27/142 ,  G02B2027/0123 ,  G02B27/0172 ,  G02B2207/123

Abstract: A display device may include a guide, a back side coating, a front side coating, an input couple, and output coupler, and an image source. The guide may include a guide front side and a guide back side opposite the guide front side. The back side coating may line the guide back side and may reflect rays in a first waveband. The front side coating may line the guide front side and may reflect rays in a second waveband. The image source may emit rays toward the guide. The input coupler may receive the rays emitted by the image source and couple the rays into the guide. The output coupler may receive rays propagated along the guide between the guide back side and the guide front side and emit the received rays from the guide front side.

公开(公告)号：US20240411078A1

公开(公告)日：2024-12-12

申请号：US18607870

申请日：2024-03-18

Applicant: II-VI Delaware, Inc.

Inventor： Giovanni Barbarossa ,  Robert Chebi ,  Ramesh Sundaram ,  Jeremy Turcaud ,  Christoph Greiner

IPC: G02B5/30 ,  B82Y20/00 ,  B82Y40/00 ,  G02B1/00 ,  G02B1/08

Abstract: This disclosure describes the fabrication of a polarizer, a diffraction grating and a meta surface via ion implantation. The polarizer comprises a plurality of non-conducting areas between a wire grid of conducting wires. The conducting wires may comprise nanowires or nanopillars. The wire grid may be a rectangular grid or a hexagonal grid.

公开(公告)号：US20250130355A1

公开(公告)日：2025-04-24

申请号：US18382370

申请日：2023-10-20

Applicant: II-VI Delaware, Inc.

Inventor： Justin Hannigan ,  Dmitri Iazikov ,  Christoph Greiner

IPC: G02B5/18 ,  G02B1/115

Abstract: Systems and methods are provided for multi-layer dielectric coatings for high-efficiency dielectric gratings. A immersion grating based morphology includes a plurality of grating lines, an intermediate multi-layer structure, and a substrate bearing both of the plurality of grating lines and the intermediate multi-layer structure, with the intermediate multi-layer structure including a plurality of intermediate layers, and with the intermediate multi-layer structure configured to improve performance of the immersion grating based on predetermined performance criteria including, at least, reflective losses based performance. A transmission grating based morphology includes a plurality of grating lines, an intermediate multi-layer structure, and a substrate bearing both of the plurality of grating lines and the intermediate multi-layer structure, with the intermediate multi-layer structure including a plurality of intermediate layers, and with the intermediate multi-layer structure configured to improve performance of the transmission grating based on predetermined performance criteria including, at least, reflective losses based performance.