{"id":8011,"date":"2023-07-17T15:25:47","date_gmt":"2023-07-17T07:25:47","guid":{"rendered":"https:\/\/www.huashu-tech.com\/?p=8011"},"modified":"2024-02-27T19:30:08","modified_gmt":"2024-02-27T11:30:08","slug":"researchers-use-sound-waves-to-advance-optical-communication","status":"publish","type":"post","link":"https:\/\/www.huashu-tech.com\/vi\/researchers-use-sound-waves-to-advance-optical-communication\/","title":{"rendered":"C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u s\u1eed d\u1ee5ng s\u00f3ng \u00e2m thanh \u0111\u1ec3 th\u00fac \u0111\u1ea9y truy\u1ec1n th\u00f4ng quang h\u1ecdc"},"content":{"rendered":"

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u1edf Illinois \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng s\u00f3ng \u00e2m thanh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra c\u00e1c \u0111i\u1ed1t quang si\u00eau nh\u1ecf, \u0111\u1ee7 nh\u1ecf \u0111\u1ec3 l\u1eafp v\u00e0o m\u1ed9t con chip m\u00e1y t\u00ednh. Nh\u1eefng thi\u1ebft b\u1ecb n\u00e0y, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ed9 c\u00e1ch ly quang h\u1ecdc, c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3i quy\u1ebft c\u00e1c th\u00e1ch th\u1ee9c l\u1edbn v\u1ec1 dung l\u01b0\u1ee3ng d\u1eef li\u1ec7u v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ec7 th\u1ed1ng \u0111\u1ed1i v\u1edbi c\u00e1c m\u1ea1ch t\u00edch h\u1ee3p quang t\u1eed, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u00e1c m\u1ea1ch \u0111i\u1ec7n t\u1eed d\u1ef1a tr\u00ean \u00e1nh s\u00e1ng, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u00e1y t\u00ednh v\u00e0 truy\u1ec1n th\u00f4ng.<\/p>\n

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B\u1ed9 c\u00e1ch ly l\u00e0 thi\u1ebft b\u1ecb kh\u00f4ng t\u01b0\u01a1ng h\u1ed7 ho\u1eb7c \u201cm\u1ed9t chi\u1ec1u\u201d t\u01b0\u01a1ng t\u1ef1 nh\u01b0 \u0111i\u1ed1t \u0111i\u1ec7n t\u1eed. Ch\u00fang b\u1ea3o v\u1ec7 ngu\u1ed3n laser kh\u1ecfi ph\u1ea3n x\u1ea1 ng\u01b0\u1ee3c v\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ecbnh tuy\u1ebfn t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng xung quanh m\u1ea1ng quang. Ng\u00e0y nay, c\u00f4ng ngh\u1ec7 v\u01b0\u1ee3t tr\u1ed9i \u0111\u1ec3 s\u1ea3n xu\u1ea5t nh\u1eefng thi\u1ebft b\u1ecb kh\u00f4ng t\u01b0\u01a1ng h\u1ed7 nh\u01b0 v\u1eady \u0111\u00f2i h\u1ecfi\u00a0nguy\u00ean v\u1eadt li\u1ec7u<\/a>\u00a0c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u cho bi\u1ebft, ch\u00fang thay \u0111\u1ed5i t\u00ednh ch\u1ea5t quang h\u1ecdc \u0111\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi t\u1eeb tr\u01b0\u1eddng.<\/p>\n

Gi\u00e1o s\u01b0 khoa h\u1ecdc v\u00e0 k\u1ef9 thu\u1eadt c\u01a1 kh\u00ed v\u00e0 \u0111\u1ed3ng t\u00e1c gi\u1ea3 c\u1ee7a nghi\u00ean c\u1ee9u cho bi\u1ebft: \u201cC\u00f3 m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 khi s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u ph\u1ea3n \u1ee9ng t\u1eeb t\u00ednh \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c lu\u1ed3ng \u00e1nh s\u00e1ng m\u1ed9t chi\u1ec1u trong chip quang t\u1eed\u201d.\u00a0Gaurav Bahl<\/a>. \u201c\u0110\u1ea7u ti\u00ean, ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u01a1n gi\u1ea3n l\u00e0 kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng t\u1ed1t \u0111\u1ec3 \u0111\u1eb7t nam ch\u00e2m nh\u1ecf g\u1ecdn l\u00ean chip. Nh\u01b0ng quan tr\u1ecdng h\u01a1n, c\u00e1c v\u1eadt li\u1ec7u c\u1ea7n thi\u1ebft v\u1eabn ch\u01b0a c\u00f3 s\u1eb5n trong c\u00e1c x\u01b0\u1edfng \u0111\u00fac quang t\u1eed. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao ng\u00e0nh c\u00f4ng nghi\u1ec7p r\u1ea5t c\u1ea7n m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn t\u1ed1t h\u01a1n ch\u1ec9 s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u th\u00f4ng th\u01b0\u1eddng v\u00e0 tr\u00e1nh ho\u00e0n to\u00e0n t\u1eeb tr\u01b0\u1eddng.\u201d<\/p>\n

Trong m\u1ed9t nghi\u00ean c\u1ee9u \u0111\u0103ng tr\u00ean t\u1ea1p ch\u00ed\u00a0Quang t\u1eed thi\u00ean nhi\u00ean<\/i>, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u gi\u1ea3i th\u00edch c\u00e1ch h\u1ecd s\u1eed d\u1ee5ng s\u1ef1 gh\u00e9p n\u1ed1i c\u1ef1c nh\u1ecf gi\u1eefa \u00e1nh s\u00e1ng v\u00e0 \u00e2m thanh \u0111\u1ec3 cung c\u1ea5p m\u1ed9t gi\u1ea3i ph\u00e1p \u0111\u1ed9c \u0111\u00e1o cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng t\u01b0\u01a1ng h\u1ed7 ho\u1ea1t \u0111\u1ed9ng v\u1edbi h\u1ea7u h\u1ebft m\u1ecdi v\u1eadt li\u1ec7u quang t\u1eed.<\/p>\n

Tuy nhi\u00ean, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u cho bi\u1ebft, k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 s\u1ef1 s\u1eb5n c\u00f3 c\u1ee7a v\u1eadt li\u1ec7u kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 duy nh\u1ea5t v\u1edbi c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i.<\/p>\n

Nghi\u00ean c\u1ee9u sinh v\u00e0 t\u00e1c gi\u1ea3 ch\u00ednh Benjamin Sohn cho bi\u1ebft: \u201cNh\u1eefng n\u1ed7 l\u1ef1c trong ph\u00f2ng th\u00ed nghi\u1ec7m nh\u1eb1m s\u1ea3n xu\u1ea5t c\u00e1c b\u1ed9 c\u00e1ch ly quang t\u1eeb t\u00ednh nh\u1ecf g\u1ecdn lu\u00f4n g\u1eb7p tr\u1edf ng\u1ea1i do t\u1ed5n th\u1ea5t quang h\u1ecdc l\u1edbn\u201d. \u201cNg\u00e0nh c\u00f4ng nghi\u1ec7p quang t\u1eed kh\u00f4ng th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ed5n th\u1ea5t li\u00ean quan \u0111\u1ebfn v\u1eadt li\u1ec7u n\u00e0y v\u00e0 c\u0169ng c\u1ea7n m\u1ed9t gi\u1ea3i ph\u00e1p cung c\u1ea5p \u0111\u1ee7 b\u0103ng th\u00f4ng \u0111\u1ec3 c\u00f3 th\u1ec3 so s\u00e1nh v\u1edbi k\u1ef9 thu\u1eadt t\u1eeb t\u00ednh truy\u1ec1n th\u1ed1ng. Cho \u0111\u1ebfn nay, ch\u01b0a c\u00f3 c\u00e1ch ti\u1ebfp c\u1eadn kh\u00f4ng c\u00f3 nam ch\u00e2m n\u00e0o mang t\u00ednh c\u1ea1nh tranh.\u201d<\/p>\n

Thi\u1ebft b\u1ecb m\u1edbi n\u00e0y ch\u1ec9 c\u00f3 k\u00edch th\u01b0\u1edbc 200 x 100 micron \u2013 nh\u1ecf h\u01a1n kho\u1ea3ng 10.000 l\u1ea7n so v\u1edbi 1 cm vu\u00f4ng \u2013 v\u00e0 \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng nh\u00f4m nitrit, m\u1ed9t v\u1eadt li\u1ec7u trong su\u1ed1t truy\u1ec1n \u00e1nh s\u00e1ng v\u00e0 t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c x\u01b0\u1edfng \u0111\u00fac quang t\u1eed. \u201cS\u00f3ng \u00e2m thanh \u0111\u01b0\u1ee3c t\u1ea1o ra theo c\u00e1ch t\u01b0\u01a1ng t\u1ef1 nh\u01b0 loa \u00e1p \u0111i\u1ec7n, s\u1eed d\u1ee5ng c\u00e1c \u0111i\u1ec7n c\u1ef1c c\u1ef1c nh\u1ecf \u0111\u01b0\u1ee3c ghi tr\u1ef1c ti\u1ebfp l\u00ean nh\u00f4m nitrit b\u1eb1ng ch\u00f9m tia \u0111i\u1ec7n t\u1eed. \u0110\u00f3 l\u00e0 nh\u1eefng th\u1ee9 n\u00e0y\u00a0s\u00f3ng \u00e2m<\/a>\u00a0bu\u1ed9c \u00e1nh s\u00e1ng b\u00ean trong thi\u1ebft b\u1ecb ch\u1ec9 truy\u1ec1n theo m\u1ed9t h\u01b0\u1edbng. \u0110\u00e2y l\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean m\u1ed9t b\u1ed9 c\u00e1ch ly kh\u00f4ng nam ch\u00e2m v\u01b0\u1ee3t qua b\u0103ng th\u00f4ng gigahertz,\u201d Sohn n\u00f3i.<\/p>\n

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C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111ang t\u00ecm c\u00e1ch t\u0103ng b\u0103ng th\u00f4ng ho\u1eb7c dung l\u01b0\u1ee3ng d\u1eef li\u1ec7u c\u1ee7a c\u00e1c b\u1ed9 c\u00e1ch ly n\u00e0y v\u00e0 t\u1ef1 tin r\u1eb1ng h\u1ecd c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua r\u00e0o c\u1ea3n n\u00e0y. Sau khi \u0111\u01b0\u1ee3c ho\u00e0n thi\u1ec7n, h\u1ecd h\u00ecnh dung ra nh\u1eefng \u1ee9ng d\u1ee5ng mang t\u00ednh bi\u1ebfn \u0111\u1ed5i trong h\u1ec7 th\u1ed1ng th\u00f4ng tin quang t\u1eed, con quay h\u1ed3i chuy\u1ec3n, h\u1ec7 th\u1ed1ng GPS, m\u00e1y ch\u1ea5m c\u00f4ng nguy\u00ean t\u1eed v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u.<\/p>\n

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\"Researchers
Sinh vi\u00ean khoa h\u1ecdc v\u00e0 k\u1ef9 thu\u1eadt c\u01a1 kh\u00ed Illinois v\u00e0 l\u00e0 t\u00e1c gi\u1ea3 ch\u00ednh c\u1ee7a m\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi, Benjamin Sohn c\u1ea7m m\u1ed9t thi\u1ebft b\u1ecb s\u1eed d\u1ee5ng s\u00f3ng \u00e2m thanh \u0111\u1ec3 t\u1ea1o ra c\u00e1c \u0111i\u1ed1t quang \u0111\u1ee7 nh\u1ecf \u0111\u1ec3 l\u1eafp v\u00e0o m\u1ed9t con chip m\u00e1y t\u00ednh. Nh\u00e0 cung c\u1ea5p h\u00ecnh \u1ea3nh: L. Brian Stauffer<\/figcaption><\/figure>\n<\/div>\n<\/div>\n

Bahl cho bi\u1ebft: \u201cC\u00e1c trung t\u00e2m d\u1eef li\u1ec7u x\u1eed l\u00fd m\u1ed9t l\u01b0\u1ee3ng l\u1edbn l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u internet v\u00e0 ti\u00eau th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng l\u1edbn n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 k\u1ebft n\u1ed1i m\u1ea1ng c\u0169ng nh\u01b0 \u0111\u1ec3 gi\u1eef cho m\u00e1y ch\u1ee7 lu\u00f4n m\u00e1t m\u1ebb\u201d. \u201cGiao ti\u1ebfp d\u1ef1a tr\u00ean \u00e1nh s\u00e1ng l\u00e0 \u0111i\u1ec1u \u0111\u00e1ng mong mu\u1ed1n v\u00ec n\u00f3 t\u1ea1o ra \u00edt nhi\u1ec7t h\u01a1n, ngh\u0129a l\u00e0 c\u00f3 th\u1ec3 ti\u00eau t\u1ed1n \u00edt n\u0103ng l\u01b0\u1ee3ng h\u01a1n cho vi\u1ec7c l\u00e0m m\u00e1t m\u00e1y ch\u1ee7 trong khi truy\u1ec1n nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n m\u1ed7i gi\u00e2y.\u201d<\/p>\n

B\u00ean c\u1ea1nh ti\u1ec1m n\u0103ng c\u00f4ng ngh\u1ec7, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u kh\u00f4ng th\u1ec3 kh\u00f4ng b\u1ecb m\u00ea ho\u1eb7c b\u1edfi n\u1ec1n t\u1ea3ng khoa h\u1ecdc c\u01a1 b\u1ea3n \u0111\u1eb1ng sau s\u1ef1 ti\u1ebfn b\u1ed9 n\u00e0y.<\/p>\n

\u201cTrong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y, ch\u00fang ta kh\u00f4ng th\u1ea5y s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa \u00e1nh s\u00e1ng v\u00e0 \u00e2m thanh,\u201d Bahl n\u00f3i. \u201c\u00c1nh s\u00e1ng c\u00f3 th\u1ec3 xuy\u00ean qua m\u1ed9t t\u1ea5m k\u00ednh trong su\u1ed1t m\u00e0 kh\u00f4ng g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng g\u00ec k\u1ef3 l\u1ea1. L\u0129nh v\u1ef1c nghi\u00ean c\u1ee9u c\u1ee7a ch\u00fang t\u00f4i \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng\u00a0\u00e1nh s\u00e1ng<\/a>\u00a0v\u00e0 tr\u00ean th\u1ef1c t\u1ebf, \u00e2m thanh t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau m\u1ed9t c\u00e1ch r\u1ea5t tinh t\u1ebf. N\u1ebfu b\u1ea1n \u00e1p d\u1ee5ng c\u00e1c nguy\u00ean t\u1eafc k\u1ef9 thu\u1eadt ph\u00f9 h\u1ee3p, b\u1ea1n c\u00f3 th\u1ec3 l\u1eafc v\u1eadt li\u1ec7u trong su\u1ed1t theo \u0111\u00fang c\u00e1ch \u0111\u1ec3 n\u00e2ng cao nh\u1eefng hi\u1ec7u \u1ee9ng n\u00e0y v\u00e0 gi\u1ea3i quy\u1ebft th\u00e1ch th\u1ee9c khoa h\u1ecdc l\u1edbn n\u00e0y. N\u00f3 c\u00f3 v\u1ebb g\u1ea7n nh\u01b0 k\u1ef3 di\u1ec7u.\u201d<\/p>","protected":false},"excerpt":{"rendered":"

Illinois researchers have demonstrated that sound waves can be used to produce ultraminiature optical diodes that are tiny enough to fit onto a computer chip. These devices, called optical isolators, may help solve major data capacity and system size challenges for photonic integrated circuits, the light-based equivalent of electronic circuits, which are used for computing<\/p>","protected":false},"author":1,"featured_media":8033,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1,321],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/posts\/8011"}],"collection":[{"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/comments?post=8011"}],"version-history":[{"count":1,"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/posts\/8011\/revisions"}],"predecessor-version":[{"id":8034,"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/posts\/8011\/revisions\/8034"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/media\/8033"}],"wp:attachment":[{"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/media?parent=8011"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/categories?post=8011"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/tags?post=8011"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}