{"id":645,"date":"2022-02-17T10:08:46","date_gmt":"2022-02-17T10:08:46","guid":{"rendered":"http:\/\/vdraz.lumn.eu\/wordpress\/?page_id=645"},"modified":"2025-12-06T22:14:07","modified_gmt":"2025-12-06T22:14:07","slug":"color-split2-2","status":"publish","type":"page","link":"https:\/\/vdraz.lumn.eu\/wordpress\/color-split2-2\/","title":{"rendered":"Metagrating solutions for full color single-plate waveguide combiner"},"content":{"rendered":"<pre><span class=\"fontstyle0\"><span dir=\"ltr\" role=\"presentation\">In this work we propose several full-color metagrating solutions for single waveguide-based<\/span><br role=\"presentation\" \/><span dir=\"ltr\" role=\"presentation\">Augmented and Virtual Reality near-eye display systems. The presented solutions are based on a combination of<\/span><br role=\"presentation\" \/><span dir=\"ltr\" role=\"presentation\">re<\/span><span dir=\"ltr\" role=\"presentation\">fl<\/span><span dir=\"ltr\" role=\"presentation\">ective and\/or transmissive diffraction gratings inside or outside a waveguide. The proposed in-coupler<\/span><br role=\"presentation\" \/><span dir=\"ltr\" role=\"presentation\">designs have high diffraction ef<\/span><span dir=\"ltr\" role=\"presentation\">fi<\/span><span dir=\"ltr\" role=\"presentation\">ciency across a wide angular range. Applying our new grating combination<\/span><br role=\"presentation\" \/><span dir=\"ltr\" role=\"presentation\">solution, we can provide good gathering of diffracted rays for the different colors. We demonstrate that by using<\/span><br role=\"presentation\" \/><span dir=\"ltr\" role=\"presentation\">a dual-mode symmetrical in-coupling system and angular pupil tiling, we can extend the overall horizontal FoV<\/span><br role=\"presentation\" \/><span dir=\"ltr\" role=\"presentation\">for three RGB colors. The new characteristics of the full single waveguide system including Eye Pupil Expander<\/span><br role=\"presentation\" \/><span dir=\"ltr\" role=\"presentation\">and out-coupling components compatible with the proposed in-coupling solutions are discussed. We show that a<\/span><br role=\"presentation\" \/><span dir=\"ltr\" role=\"presentation\">new nonsymmetrical design of metagratings can be used to change its diffraction properties improving the<\/span><br role=\"presentation\" \/><span dir=\"ltr\" role=\"presentation\">diffraction ef<\/span><span dir=\"ltr\" role=\"presentation\">fi<\/span><span dir=\"ltr\" role=\"presentation\">ciency and diffraction uniformity of the optical components.<\/span><\/span><\/pre>\n<p>&#8220;<em>Metagrating solutions for full color single-plate waveguide combiner<\/em>&#8221;\u00a0<span dir=\"ltr\" role=\"presentation\">Oksana Shramkova<\/span> <span dir=\"ltr\" role=\"presentation\">*<\/span> <span dir=\"ltr\" role=\"presentation\">, Valter Drazic, Guillaume Bourcin, Bobin Varghese, Laurent Blond\u00e9, and Val\u00e9rie Alli\u00e9<\/span> ,\u00a0 <span dir=\"ltr\" role=\"presentation\">Metamaterials for Novel Wave Phenomena in Microwaves, <\/span><span dir=\"ltr\" role=\"presentation\">Optics, and Mechanics. 2022.<\/span><\/p>\n\n\n","protected":false},"excerpt":{"rendered":"<p>In this work we propose several full-color metagrating solutions for single waveguide-basedAugmented and Virtual Reality near-eye display systems. The presented solutions are based on a combination ofreflective and\/or transmissive diffraction gratings inside or outside a waveguide. The proposed in-couplerdesigns have high diffraction efficiency across a wide angular range. Applying our new grating combinationsolution, we can &hellip; <a href=\"https:\/\/vdraz.lumn.eu\/wordpress\/color-split2-2\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Metagrating solutions for full color single-plate waveguide combiner<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":646,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[4],"tags":[70,49,48],"class_list":["post-645","page","type-page","status-publish","has-post-thumbnail","hentry","category-journal","tag-diffractive-grating","tag-edge-diffraction","tag-photonic-nanojet"],"_links":{"self":[{"href":"https:\/\/vdraz.lumn.eu\/wordpress\/wp-json\/wp\/v2\/pages\/645","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vdraz.lumn.eu\/wordpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/vdraz.lumn.eu\/wordpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/vdraz.lumn.eu\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vdraz.lumn.eu\/wordpress\/wp-json\/wp\/v2\/comments?post=645"}],"version-history":[{"count":10,"href":"https:\/\/vdraz.lumn.eu\/wordpress\/wp-json\/wp\/v2\/pages\/645\/revisions"}],"predecessor-version":[{"id":720,"href":"https:\/\/vdraz.lumn.eu\/wordpress\/wp-json\/wp\/v2\/pages\/645\/revisions\/720"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vdraz.lumn.eu\/wordpress\/wp-json\/wp\/v2\/media\/646"}],"wp:attachment":[{"href":"https:\/\/vdraz.lumn.eu\/wordpress\/wp-json\/wp\/v2\/media?parent=645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vdraz.lumn.eu\/wordpress\/wp-json\/wp\/v2\/categories?post=645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vdraz.lumn.eu\/wordpress\/wp-json\/wp\/v2\/tags?post=645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}