C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 kh\u00e1m ph\u00e1 ra m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p k\u1ef3 l\u1ea1 \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n th\u1eddi ti\u1ebft b\u1eb1ng c\u00e1c tia laser v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng s\u1ebd \u0111\u00e1nh b\u1ea1i \u0111\u01b0\u1ee3c s\u1ef1 \u0111e d\u1ecda c\u1ee7a h\u1ea1n h\u00e1n.<\/p>\n
M\u1ed9t \u0111\u1ee3t h\u1ea1n h\u00e1n k\u00e9o d\u00e0i s\u00e1u n\u0103m \u1edf California cu\u1ed1i c\u00f9ng \u0111\u00e3 k\u1ebft th\u00fac trong n\u0103m nay, tuy nhi\u00ean, c\u00e1c m\u1ed1i \u0111e d\u1ecda \u0111\u1ed1i v\u1edbi v\u00f9ng t\u00e2y nam n\u01b0\u1edbc M\u1ef9 c\u0169ng nh\u01b0 c\u00e1c khu v\u1ef1c kh\u00e1c tr\u00ean th\u1ebf gi\u1edbi v\u1eabn gi\u1eef nguy\u00ean.<\/p>\n
Tuy nhi\u00ean, hi\u1ec7n gi\u1edd, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 c\u00f3 th\u1ec3 t\u1ea1o ra m\u01b0a v\u00e0 s\u1ea5m ch\u1edbp b\u1eb1ng c\u00e1c tia laser cao n\u0103ng l\u01b0\u1ee3ng nh\u1edd m\u1ed9t nghi\u00ean c\u1ee9u \u0111\u1ed9t ph\u00e1, t\u1eeb \u0111\u00f3 c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf h\u1ea1n h\u00e1n tr\u00ean to\u00e0n c\u1ea7u.<\/p>\n
Kh\u1ea3 n\u0103ng ng\u01b0ng t\u1ee5 h\u01a1i n\u01b0\u1edbc, t\u1ea1o ra s\u1ea5m ch\u1edbp trong c\u00e1c \u0111\u00e1m m\u00e2y v\u00e0 l\u01b0u gi\u1eef s\u1ebd th\u1ef1c hi\u1ec7n nh\u1edd c\u00e1c h\u1ea1t t\u0129nh \u0111i\u1ec7n.<\/p>\n
C\u00e1c chuy\u00ean gia t\u1eeb \u0110\u1ea1i h\u1ecdc Trung t\u00e2m Florida v\u00e0 \u0110\u1ea1i h\u1ecdc Arizona tin r\u1eb1ng b\u1eb1ng c\u00e1ch b\u1eafn ra m\u1ed9t ch\u00f9m tia laser, h\u1ecd c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t t\u0129nh \u0111i\u1ec7n v\u00e0 t\u1ea1o ra m\u01b0a v\u00e0 d\u00f4ng t\u1ed1.<\/p>\n
M\u1ed9t ch\u00f9m tia laser \u0111\u01b0\u1ee3c b\u1eafn ra, v\u00e0 n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c bao quanh b\u1edfi m\u1ed9t ch\u00f9m tia laser th\u1ee9 hai \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t h\u1ed3 ch\u1ee9a n\u0103ng l\u01b0\u1ee3ng – gi\u00fap ch\u00f9m tia laser trung t\u00e2m duy tr\u00ec tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh l\u00e2u h\u01a1n v\u00e0 ng\u0103n ng\u1eeba s\u1ef1 t\u1ea3n nhi\u1ec7t.<\/p>\n
Nh\u00e0 khoa h\u1ecdc Matthew Mills t\u1edbi t\u1eeb Trung t\u00e2m Nghi\u00ean c\u1ee9u v\u00e0 Gi\u00e1o d\u1ee5c v\u1ec1 Quang h\u1ecdc v\u00e0 Tia aser (CREOL) cho hay: B\u00ecnh th\u01b0\u1eddng c\u00e1c tia laser c\u00f3 th\u1ec3 b\u1eafn \u0111i m\u1ed9t kho\u1ea3ng r\u1ea5t xa, nh\u01b0ng khi m\u1ed9t ch\u00f9m tia laser c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 \u0111\u1ee7 l\u1edbn, n\u00f3 s\u1ebd ho\u1ea1t \u0111\u1ed9ng kh\u00e1c bi\u1ec7t h\u01a1n so v\u1edbi b\u00ecnh th\u01b0\u1eddng – n\u00f3 s\u1ebd t\u1ef1 ph\u00e1 v\u1ee1 ph\u1ea7n b\u00ean trong. S\u1ef1 ph\u00e1 v\u1ee1 n\u00e0y c\u00f3 th\u1ec3 d\u1eef d\u1ed9i \u0111\u1ebfn m\u1ee9c c\u00e1c h\u1ea1t electron c\u1ee7a \u00f4-xy v\u00e0 ni-t\u01a1 trong kh\u00f4ng kh\u00ed b\u1ecb t\u00e1ch ra kh\u1ecfi nguy\u00ean t\u1eed v\u00e0 t\u1ea1o ra tr\u1ea1ng th\u00e1i plasma.<\/p>\n
Khi \u0111\u00f3, tia laser s\u1ebd c\u1ed1 g\u1eafng ph\u00e1t t\u00e1n ra xung quanh v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 n\u00f3 s\u1ebd t\u1ef1 s\u1ee5p \u0111\u1ed5 v\u00e0o b\u00ean trong.<\/p>\n
Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u01a1c g\u1ecdi l\u00e0 \u201cs\u1ef1 h\u00ecnh th\u00e0nh s\u1ee3i\u201d v\u00e0 t\u1ea1o ra m\u1ed9t \u201cchu\u1ed7i \u00e1nh s\u00e1ng\u201d ch\u1ec9 duy tr\u00ec trong m\u1ed9t th\u1eddi gian ng\u1eafn tr\u01b0\u1edbc khi ph\u00e2n t\u00e1n.<\/p>\n
\u00d4ng Mill cho hay: b\u1edfi v\u00ec m\u1ed9t \u201cs\u1ee3i\u201d s\u1ebd t\u1ea1o ra c\u00e1c \u0111i\u1ec7n t\u1eed b\u1ecb k\u00edch th\u00edch theo sau khi n\u00f3 chuy\u1ec3n \u0111\u1ed9ng, do \u0111\u00f3 n\u00f3 \u01b0\u01a1m m\u1ea7m cho c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u1ea3y ra m\u01b0a v\u00e0 s\u1ea5m ch\u1edbp.<\/p>\n
S\u1ebd th\u1eadt tuy\u1ec7t v\u1eddi n\u1ebfu c\u00f3 m\u1ed9t c\u00e1ch n\u00e0o \u0111\u00f3 cho ph\u00e9p ch\u00fang ta t\u1ea1o ra m\u1ed9t s\u1ee3i d\u00e2y c\u00e1p \u0111\u1ec3 n\u1ed1i d\u00e0i c\u00e1c \u201cs\u1ee3i\u201d n\u00e0y m\u1ed9t c\u00e1ch t\u00fay \u00fd. N\u1ebfu b\u1ea1n c\u00f3 th\u1ec3 b\u1ecdc m\u1ed9t ch\u00f9m tia laser th\u1eadt l\u1edbn c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 th\u1ea5p gi\u1ed1ng nh\u01b0 m\u1ed9t chi\u1ebfc b\u00e1nh v\u00f2ng xung quanh \u201cs\u1ee3i\u201d v\u00e0 t\u1eeb t\u1eeb d\u1ecbch chuy\u1ec3n n\u00f3 v\u00e0o b\u00ean trong, th\u00ec b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o ra ph\u1ea7n n\u1ed1i d\u00e0i \u0111\u00f3.<\/p>\n
Khi ch\u00fang ta c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t to\u00e0n b\u1ed9 chi\u1ec1u d\u00e0i c\u1ee7a m\u1ed9t \u201cs\u1ee3i\u201d n\u00ean c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ea7n thi\u1ebft \u0111\u1ec3 g\u00e2y m\u01b0a t\u1eeb xa.<\/p>\n
Th\u1eadm ch\u00ed, t\u1eeb \u00fd t\u01b0\u1edfng n\u00e0y, b\u1ea1n c\u00f2n c\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n m\u01b0a v\u00e0 s\u1ea5m ch\u1edbp tr\u00ean di\u1ec7n r\u1ed9ng.<\/p>\n
(D\u00e2n tr\u00ed)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":" C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 kh\u00e1m ph\u00e1 ra m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p k\u1ef3 l\u1ea1 \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n th\u1eddi ti\u1ebft b\u1eb1ng c\u00e1c tia laser v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng s\u1ebd \u0111\u00e1nh b\u1ea1i \u0111\u01b0\u1ee3c s\u1ef1 \u0111e d\u1ecda c\u1ee7a h\u1ea1n h\u00e1n. M\u1ed9t \u0111\u1ee3t h\u1ea1n h\u00e1n k\u00e9o d\u00e0i s\u00e1u n\u0103m \u1edf California cu\u1ed1i c\u00f9ng \u0111\u00e3 k\u1ebft th\u00fac trong n\u0103m nay, tuy […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-7775","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7775","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\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=7775"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7775\/revisions"}],"predecessor-version":[{"id":7776,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7775\/revisions\/7776"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=7775"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=7775"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=7775"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}