{"id":57144,"date":"2026-03-09T12:47:21","date_gmt":"2026-03-09T11:47:21","guid":{"rendered":"https:\/\/www.nae.fr\/2026\/03\/09\/variable-bit-width-all-optical-content-addressable-memory-enabled-by-sb2se3-for-similarity-search\/"},"modified":"2026-03-09T12:47:21","modified_gmt":"2026-03-09T11:47:21","slug":"variable-bit-width-all-optical-content-addressable-memory-enabled-by-sb2se3-for-similarity-search","status":"publish","type":"post","link":"https:\/\/www.nae.fr\/en\/2026\/03\/09\/variable-bit-width-all-optical-content-addressable-memory-enabled-by-sb2se3-for-similarity-search\/","title":{"rendered":"Variable Bit-Width All-Optical Content-Addressable Memory Enabled by Sb2Se3 for Similarity Search"},"content":{"rendered":"
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In the big-data-driven artificial intelligence era, similarity search, as a core operation in machine learning and data mining, demands high speed, energy efficiency, and scenario adaptability. Conventional electronic content-addressable memory (ECAMs) suffer from inherent RC delay bottlenecks, whereas existing optical content-addressable memory (OCAMs) are restricted by fixed bit-widths and limited distance metrics. In this work, we propose a variable bit-width all-optical CAM leveraging multi-segment modulators and phase-change material (PCM) Sb2<\/sub>Se3<\/sub>.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/blockquote>\n

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\n\nPour en savoir plus : Variable Bit-Width All-Optical Content-Addressable Memory Enabled by Sb2Se3 for Similarity Search<\/a>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

In the big-data-driven artificial intelligence era, similarity search, as a core operation in machine learning and data mining, demands high speed, energy efficiency, and scenario adaptability. Conventional electronic content-addressable memory (ECAMs) suffer from inherent RC delay bottlenecks, whereas existing optical content-addressable memory (OCAMs) are restricted by fixed bit-widths and limited distance metrics. In this work, […]<\/p>\n","protected":false},"author":1,"featured_media":55241,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[34,16],"tags":[35,45,30],"class_list":["post-57144","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-innovation-et-technologique","category-rti","tag-actualites","tag-electrification-et-fiabilite-des-systemes-embarques","tag-fiabilite-des-systemes-et-des-composants"],"acf":[],"yoast_head":"\nVariable Bit-Width All-Optical Content-Addressable Memory Enabled by Sb2Se3 for Similarity Search - NAE<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.nae.fr\/en\/2026\/03\/09\/variable-bit-width-all-optical-content-addressable-memory-enabled-by-sb2se3-for-similarity-search\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Variable Bit-Width All-Optical Content-Addressable Memory Enabled by Sb2Se3 for Similarity Search - NAE\" \/>\n<meta property=\"og:description\" content=\"In the big-data-driven artificial intelligence era, similarity search, as a core operation in machine learning and data mining, demands high speed, energy efficiency, and scenario adaptability. Conventional electronic content-addressable memory (ECAMs) suffer from inherent RC delay bottlenecks, whereas existing optical content-addressable memory (OCAMs) are restricted by fixed bit-widths and limited distance metrics. In this work, […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.nae.fr\/en\/2026\/03\/09\/variable-bit-width-all-optical-content-addressable-memory-enabled-by-sb2se3-for-similarity-search\/\" \/>\n<meta property=\"og:site_name\" content=\"NAE\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-09T11:47:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.nae.fr\/wp-content\/uploads\/2026\/06\/logo-mdpi.png\" \/>\n\t<meta property=\"og:image:width\" content=\"276\" \/>\n\t<meta property=\"og:image:height\" content=\"182\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"adminwa\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"adminwa\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.nae.fr\\\/2026\\\/03\\\/09\\\/variable-bit-width-all-optical-content-addressable-memory-enabled-by-sb2se3-for-similarity-search\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.nae.fr\\\/2026\\\/03\\\/09\\\/variable-bit-width-all-optical-content-addressable-memory-enabled-by-sb2se3-for-similarity-search\\\/\"},\"author\":{\"name\":\"adminwa\",\"@id\":\"https:\\\/\\\/www.nae.fr\\\/#\\\/schema\\\/person\\\/3d658e930f01449b7195ce4a78fcfc1e\"},\"headline\":\"Variable Bit-Width All-Optical Content-Addressable Memory Enabled by Sb2Se3 for Similarity Search\",\"datePublished\":\"2026-03-09T11:47:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.nae.fr\\\/2026\\\/03\\\/09\\\/variable-bit-width-all-optical-content-addressable-memory-enabled-by-sb2se3-for-similarity-search\\\/\"},\"wordCount\":99,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.nae.fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.nae.fr\\\/2026\\\/03\\\/09\\\/variable-bit-width-all-optical-content-addressable-memory-enabled-by-sb2se3-for-similarity-search\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.nae.fr\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/logo-mdpi.png\",\"keywords\":[\"Actualit\u00e9s\",\"Electrification et fiabilit\u00e9 des syst\u00e8mes embarqu\u00e9s\",\"Fiabilit\u00e9 des syst\u00e8mes et des composants\"],\"articleSection\":[\"Innovation et technologique\",\"RTI\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.nae.fr\\\/2026\\\/03\\\/09\\\/variable-bit-width-all-optical-content-addressable-memory-enabled-by-sb2se3-for-similarity-search\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.nae.fr\\\/2026\\\/03\\\/09\\\/variable-bit-width-all-optical-content-addressable-memory-enabled-by-sb2se3-for-similarity-search\\\/\",\"url\":\"https:\\\/\\\/www.nae.fr\\\/2026\\\/03\\\/09\\\/variable-bit-width-all-optical-content-addressable-memory-enabled-by-sb2se3-for-similarity-search\\\/\",\"name\":\"Variable Bit-Width All-Optical Content-Addressable Memory Enabled by Sb2Se3 for Similarity Search - 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