{"id":4501,"date":"2015-10-28T06:19:02","date_gmt":"2015-10-27T23:19:02","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=4501"},"modified":"2017-10-02T07:55:55","modified_gmt":"2017-10-02T00:55:55","slug":"tao-ra-loai-vat-lieu-khong-the-den-hon-hap-thu-98-99-anh-sang","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/tao-ra-loai-vat-lieu-khong-the-den-hon-hap-thu-98-99-anh-sang\/","title":{"rendered":"T\u1ea1o ra lo\u1ea1i v\u1eadt li\u1ec7u “kh\u00f4ng th\u1ec3 \u0111en h\u01a1n”, h\u1ea5p th\u1ee5 98-99% \u00e1nh s\u00e1ng"},"content":{"rendered":"

M\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u “kh\u00f4ng th\u1ec3 \u0111en h\u01a1n” c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 98 – 99% \u00e1nh s\u00e1ng trong kho\u1ea3ng b\u01b0\u1edbc s\u00f3ng t\u1eeb 400 \u0111\u1ebfn 1.400 nm v\u1eeba \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n th\u00e0nh c\u00f4ng b\u1edfi c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i \u0110\u1ea1i h\u1ecdc King Abdulla, \u1ea2 R\u1eadp Saudi. \u0110\u00e2y l\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u quan tr\u1ecdng, gi\u00fap n\u00e2ng cao hi\u1ec7u su\u1ea5t h\u1ea5p thu n\u0103ng l\u01b0\u1ee3ng M\u1eb7t Tr\u1eddi ho\u1eb7c c\u1ea3i thi\u1ec7n qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u b\u1eb1ng s\u1ee3i c\u00e1p quang.<\/strong><\/p>\n

\"\"<\/p>\n

Theo nh\u00f3m nghi\u00ean c\u1ee9u, vi\u1ec7c t\u1ea1o n\u00ean m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u \u0111en ho\u00e0n h\u1ea3o, h\u1ea5p th\u1ee5 t\u1ea5t c\u1ea3 n\u0103ng l\u01b0\u1ee3ng ti\u1ebfp c\u1eadn t\u1edbi n\u00f3 v\u00e0 ph\u1ea3n x\u1ea1 l\u1ea1i m\u00e0 kh\u00f4ng b\u1ecb th\u1ea5t tho\u00e1t g\u1ea7n nh\u01b0 l\u00e0 b\u1ea5t kh\u1ea3 thi. Tuy nhi\u00ean, c\u00e1c nh\u00e0 khoa h\u1ecdc lu\u00f4n mu\u1ed1n t\u1ea1o ra \u0111\u01b0\u1ee3c lo\u1ea1i v\u1eadt li\u1ec7u nh\u01b0 v\u1eady, ho\u1eb7c ch\u00ed \u00edt l\u00e0 ti\u1ec7m c\u1eadn v\u1edbi \u0111i\u1ec1u \u0111\u00f3 nh\u1eb1m t\u1ea1o ti\u1ec1n \u0111\u1ec1 ch\u1ebf t\u1ea1o c\u00e1c thi\u1ebft b\u1ecb hi\u1ec7u su\u1ea5t cao h\u01a1n.<\/p>\n

Trong n\u1ed7 l\u1ef1c m\u1edbi nh\u1ea5t, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i \u0110\u1ea1i h\u1ecdc King Abdulla, \u1ea2 R\u1eadp Saudi \u0111\u00e3 t\u1ea1o ra lo\u1ea1i v\u1eadt li\u1ec7u \u0111en nh\u1ea5t m\u00e0 con ng\u01b0\u1eddi t\u1eebng t\u1ea1o ra t\u1eeb tr\u01b0\u1edbc \u0111\u1ebfn nay. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c \u1ed1ng nano carbon, \u0111\u1ed3ng th\u1eddi l\u1ea5y c\u1ea3m h\u1ee9ng t\u1eeb lo\u00e0i b\u1ecd c\u00e1nh c\u1ee9ng Cyphochilus v\u1edbi c\u01a1 th\u1ec3 m\u00e0u tr\u1eafng s\u00e1ng b\u1ea5t th\u01b0\u1eddng, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 t\u1ea1o n\u00ean c\u1ea5u tr\u00fac nh\u1eefng h\u1ea1t nano d\u1ea1ng que si\u00eau nh\u1ecf n\u1eb1m tr\u00ean m\u1ed9t h\u1ea1t nano h\u00ecnh c\u1ea7u v\u1edbi k\u00edch th\u01b0\u1edbc t\u01b0\u01a1ng \u0111\u01b0\u01a1ng (\u0111\u01b0\u1eddng kinh 30 nm).<\/p>\n

\"\"<\/p>\n

vat_lieu_den_tinhte.<\/em>
\n C\u1ea5u tr\u00fac c\u1ee7a c\u00e1c h\u1ea1t nano tr\u00ean v\u1eadt li\u1ec7u si\u00eau \u0111en\u200b<\/em><\/p>\n

C\u1ea5u tr\u00fac n\u00e0y c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 x\u1ea5p x\u1ec9 98 – 99% \u00e1nh s\u00e1ng trong ph\u1ed5 t\u1eeb 400 \u0111\u1ebfn 1.400 nm, nhi\u1ec1u h\u01a1n g\u1ea5p 26 l\u1ea7n so v\u1edbi nh\u1eefng lo\u1ea1i v\u1eadt li\u1ec7u \u0111en t\u1eebng \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o tr\u01b0\u1edbc \u0111\u00e2y. \u0110\u1ed3ng th\u1eddi, n\u00f3 c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ecdi g\u00f3c v\u00e0 \u0111\u1ed9 ph\u00e2n c\u1ef1c c\u1ee7a \u00e1nh s\u00e1ng chi\u1ebfu v\u00e0o.<\/p>\n

N\u00f3i th\u00eam v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a lo\u00e0i b\u1ecd c\u00e1nh c\u1ee9ng Cyphochilus v\u1edbi c\u1ea5u tr\u00fac tinh th\u1ec3 quang cho ph\u00e9p n\u00f3 c\u00f3 th\u1ec3 ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng r\u1ea5t hi\u1ec7u qu\u1ea3. T\u1eeb \u0111\u00e2y, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u1ea3o ng\u01b0\u1ee3c c\u1ea5u tr\u00fac n\u00e0y \u0111\u1ec3 t\u1ea1o n\u00ean v\u1eadt li\u00eau v\u1edbi b\u1ec1 m\u1eb7t ch\u1ee9a \u0111\u1ea7y c\u00e1c v\u1ebft l\u00f5m ph\u00e2n b\u1ed1 m\u1ed9t c\u00e1ch ng\u1eabu nhi\u00ean, m\u1ed7i l\u00f5m ch\u1ee9a v\u00f4 v\u00e0ng c\u00e1ch \u1ed1ng d\u1eabn s\u00f3ng. M\u1eb7t kh\u00e1c, lo\u1ea1i v\u1eadt li\u1ec7u n\u00e0y r\u1ea5t d\u1ec5 ch\u1ebf t\u1ea1o, d\u1ec5 \u1ee9ng d\u1ee5ng v\u00e0 s\u1eed d\u1ee5ng. \u0110\u1ed3ng th\u1eddi, n\u1ebfu b\u1eafn m\u1ed9t tia laser v\u00e0o n\u00f3, c\u00e1c nh\u00e0 khoa h\u1ecdc s\u1ebd t\u1ea1o n\u00ean m\u1ed9t ngu\u1ed3n s\u00e1ng \u0111\u01a1n s\u1eafc m\u00e0 kh\u00f4ng c\u1ea7n d\u00f9ng k\u1ef9 thu\u1eadt c\u1ed9ng h\u01b0\u1edfng.<\/p>\n

B\u1eb1ng c\u00e1ch ch\u1ebf t\u1ea1o ra lo\u1ea1i v\u1eadt li\u1ec7u n\u00e0y, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 d\u00f9ng n\u00f3 \u0111\u1ec3 t\u1ea1o n\u00ean h\u1ec7 th\u1ed1ng thu th\u1eadp n\u0103ng l\u01b0\u1ee3ng M\u1eb7t Tr\u1eddi v\u1edbi hi\u1ec7u su\u1ea5t cao. M\u1ed9t \u1ee9ng d\u1ee5ng kh\u00e1c l\u00e0 c\u1ea3i ti\u1ebfn hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u quang h\u1ecdc v\u00e0 nhi\u1ec1u th\u1ee9 kh\u00e1c n\u1eefa trong t\u01b0\u01a1ng lai.<\/p>\n

Tham kh\u1ea3o Phys, DVA\u200b<\/em><\/p>\n

Ngu\u1ed3n tinhte.vn<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

M\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u “kh\u00f4ng th\u1ec3 \u0111en h\u01a1n” c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 98 – 99% \u00e1nh s\u00e1ng trong kho\u1ea3ng b\u01b0\u1edbc s\u00f3ng t\u1eeb 400 \u0111\u1ebfn 1.400 nm v\u1eeba \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n th\u00e0nh c\u00f4ng b\u1edfi c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i \u0110\u1ea1i h\u1ecdc King Abdulla, \u1ea2 R\u1eadp Saudi. \u0110\u00e2y l\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u quan tr\u1ecdng, gi\u00fap n\u00e2ng cao […]<\/p>\n","protected":false},"author":17,"featured_media":4970,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-4501","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4501","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=4501"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4501\/revisions"}],"predecessor-version":[{"id":4959,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4501\/revisions\/4959"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/4970"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=4501"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=4501"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=4501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}