{"id":8012,"date":"2023-07-17T15:25:12","date_gmt":"2023-07-17T07:25:12","guid":{"rendered":"https:\/\/www.huashu-tech.com\/?p=8012"},"modified":"2024-02-27T19:30:20","modified_gmt":"2024-02-27T11:30:20","slug":"nasa-team-investigates-ultrafast-laser-machining-for-multiple-spaceflight-applications","status":"publish","type":"post","link":"https:\/\/www.huashu-tech.com\/vi\/nasa-team-investigates-ultrafast-laser-machining-for-multiple-spaceflight-applications\/","title":{"rendered":"Nh\u00f3m NASA \u0111i\u1ec1u tra gia c\u00f4ng laser c\u1ef1c nhanh cho nhi\u1ec1u \u1ee9ng d\u1ee5ng tr\u00ean chuy\u1ebfn bay v\u0169 tr\u1ee5"},"content":{"rendered":"

M\u1ed9t tia laser c\u1ef1c nhanh b\u1eafn ra c\u00e1c xung \u00e1nh s\u00e1ng ch\u1ec9 trong kho\u1ea3ng th\u1eddi gian 100 ph\u1ea7n tri\u1ec7u nano gi\u00e2y c\u00f3 th\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng c\u00e1ch m\u1ea1ng h\u00f3a c\u00e1ch c\u00e1c k\u1ef9 thu\u1eadt vi\u00ean c\u1ee7a NASA ch\u1ebf t\u1ea1o v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 l\u1eafp r\u00e1p c\u00e1c b\u1ed9 ph\u1eadn d\u1ee5ng c\u1ee5 l\u00e0m t\u1eeb c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau.<\/p>\n

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M\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 v\u1eadt l\u00fd quang h\u1ecdc t\u1ea1i Trung t\u00e2m bay kh\u00f4ng gian Goddard c\u1ee7a NASA \u1edf Greenbelt, Maryland, \u0111ang th\u1eed nghi\u1ec7m tia laser femto gi\u00e2y v\u00e0 \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng n\u00f3 c\u00f3 th\u1ec3 h\u00e0n th\u1ee7y tinh v\u1edbi \u0111\u1ed3ng, th\u1ee7y tinh v\u1edbi th\u1ee7y tinh m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 khoan c\u00e1c l\u1ed7 kim c\u1ee1 s\u1ee3i t\u00f3c \u1edf nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau.\u00a0nguy\u00ean v\u1eadt li\u1ec7u<\/a>.<\/p>\n

Gi\u1edd \u0111\u00e2y, nh\u00f3m, d\u1eabn \u0111\u1ea7u b\u1edfi nh\u00e0 v\u1eadt l\u00fd quang h\u1ecdc Robert Lafon, \u0111ang m\u1edf r\u1ed9ng nghi\u00ean c\u1ee9u sang lo\u1ea1i th\u1ee7y tinh k\u1ef3 l\u1ea1 h\u01a1n, nh\u01b0 sapphire v\u00e0 Zerodur, v\u00e0 c\u00e1c kim lo\u1ea1i, nh\u01b0 titan, Invar, Kovar v\u00e0 nh\u00f4m \u2014 nh\u1eefng v\u1eadt li\u1ec7u th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb bay v\u0169 tr\u1ee5. M\u1ee5c ti\u00eau l\u00e0 h\u00e0n c\u00e1c m\u1ea3nh l\u1edbn h\u01a1n c\u1ee7a nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y v\u00e0 ch\u1ee9ng minh r\u1eb1ng c\u00f4ng ngh\u1ec7 laser c\u00f3 hi\u1ec7u qu\u1ea3 trong vi\u1ec7c g\u1eafn c\u00e1c c\u1eeda s\u1ed5 v\u00e0o v\u1ecf laser v\u00e0 quang h\u1ecdc v\u00e0o c\u00e1c gi\u00e1 \u0111\u1ee1 kim lo\u1ea1i, c\u00f9ng v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c.<\/p>\n

V\u1edbi s\u1ef1 h\u1ed7 tr\u1ee3 t\u1eeb ch\u01b0\u01a1ng tr\u00ecnh Qu\u1ef9 \u0110\u1ed5i m\u1edbi Trung t\u00e2m c\u1ee7a Ban Gi\u00e1m \u0111\u1ed1c S\u1ee9 m\u1ec7nh C\u00f4ng ngh\u1ec7 V\u0169 tr\u1ee5, nh\u00f3m c\u0169ng \u0111ang kh\u00e1m ph\u00e1 vi\u1ec7c s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 n\u00e0y trong ch\u1ebf t\u1ea1o v\u00e0 \u0111\u00f3ng g\u00f3i c\u00e1c m\u1ea1ch t\u00edch h\u1ee3p quang t\u1eed, m\u1ed9t c\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i c\u00f3 th\u1ec3 mang l\u1ea1i l\u1ee3i \u00edch cho m\u1ecdi th\u1ee9 t\u1eeb truy\u1ec1n th\u00f4ng v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u \u0111\u1ebfn c\u1ea3m bi\u1ebfn quang h\u1ecdc. M\u1eb7c d\u00f9 ch\u00fang t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1c m\u1ea1ch t\u00edch h\u1ee3p \u0111i\u1ec7n t\u1eed, nh\u01b0ng m\u1ea1ch t\u00edch h\u1ee3p quang t\u1eed \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o tr\u00ean h\u1ed7n h\u1ee3p v\u1eadt li\u1ec7u, bao g\u1ed3m silica v\u00e0 silicon, \u0111\u1ed3ng th\u1eddi s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng nh\u00ecn th\u1ea5y ho\u1eb7c h\u1ed3ng ngo\u1ea1i, thay v\u00ec \u0111i\u1ec7n t\u1eed, \u0111\u1ec3 truy\u1ec1n th\u00f4ng tin.<\/p>\n

\u201c\u0110i\u1ec1u n\u00e0y b\u1eaft \u0111\u1ea7u ch\u1ec9 l\u00e0 nghi\u00ean c\u1ee9u thu\u1ea7n t\u00fay, nh\u01b0ng b\u00e2y gi\u1edd ch\u00fang t\u00f4i hy v\u1ecdng s\u1ebd b\u1eaft \u0111\u1ea7u \u00e1p d\u1ee5ng nh\u1eefng g\u00ec ch\u00fang t\u00f4i \u0111\u00e3 h\u1ecdc \u0111\u01b0\u1ee3c v\u00e0o vi\u1ec7c ch\u1ebf t\u1ea1o c\u00e1c nh\u1ea1c c\u1ee5 t\u1ea1i Goddard,\u201d Lafon n\u00f3i, \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00f4ng vi\u1ec7c m\u00e0 anh v\u00e0 nh\u00f3m c\u1ee7a m\u00ecnh, bao g\u1ed3m Frankie Micalizzi v\u00e0 Steve Li, \u0111ang s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1eed nghi\u1ec7m c\u00e1c v\u1eadt li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt kh\u00e1c nhau c\u00f3 th\u1ec3 mang l\u1ea1i l\u1ee3i \u00edch cho c\u00e1c \u1ee9ng d\u1ee5ng bay v\u00e0o v\u0169 tr\u1ee5. \u201cCh\u00fang t\u00f4i \u0111\u00e3 th\u1ea5y nh\u1eefng \u1ee9ng d\u1ee5ng c\u00f3 th\u1ec3 l\u00e0 g\u00ec. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, nghi\u00ean c\u1ee9u v\u00ec m\u1ee5c \u0111\u00edch nghi\u00ean c\u1ee9u l\u00e0 v\u00ec l\u1ee3i \u00edch t\u1ed1t nh\u1ea5t c\u1ee7a ch\u00fang t\u00f4i,\u201d Lafon n\u00f3i.<\/p>\n

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\"NASA
Steve Li (tr\u00e1i), Frankie Micalizzi (gi\u1eefa) v\u00e0 Robert Lafon (ph\u1ea3i) \u0111ang s\u1eed d\u1ee5ng tia laser c\u1ef1c nhanh \u0111\u1ec3 li\u00ean k\u1ebft c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau v\u00e0 kh\u1eafc c\u00e1c k\u00eanh ho\u1eb7c \u1ed1ng d\u1eabn s\u00f3ng c\u1ef1c nh\u1ecf m\u00e0 qua \u0111\u00f3 \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 truy\u1ec1n \u0111i trong c\u00e1c m\u1ea1ch t\u00edch h\u1ee3p quang t\u1eed v\u00e0 m\u00e1y ph\u00e1t laser. T\u00edn d\u1ee5ng: NASA\/W. Hrybyk<\/figcaption><\/figure>\n<\/div>\n<\/div>\n

Nh\u1eefng \u0111\u1ee9c t\u00ednh c\u1ee7a c\u00f4ng ngh\u1ec7<\/h2>\n

Tr\u1ecdng t\u00e2m c\u1ee7a vi\u1ec7c th\u00fac \u0111\u1ea9y c\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y ch\u00ednh l\u00e0 tia laser. Lafon cho bi\u1ebft nh\u1edd c\u00e1c xung ng\u1eafn \u2013 \u0111\u01b0\u1ee3c \u0111o \u1edf m\u1ed9t ph\u1ea7n tri\u1ec7u t\u1ef7 gi\u00e2y \u2013 tia laser c\u1ef1c nhanh t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c v\u1eadt li\u1ec7u theo m\u1ed9t c\u00e1ch \u0111\u1ed9c \u0111\u00e1o. N\u0103ng l\u01b0\u1ee3ng laser kh\u00f4ng l\u00e0m tan ch\u1ea3y v\u1eadt li\u1ec7u m\u1ee5c ti\u00eau. N\u00f3 l\u00e0m bay h\u01a1i n\u00f3 m\u00e0 kh\u00f4ng l\u00e0m n\u00f3ng v\u1eadt ch\u1ea5t xung quanh.<\/p>\n

K\u1ebft qu\u1ea3 l\u00e0, c\u00e1c k\u1ef9 thu\u1eadt vi\u00ean c\u00f3 th\u1ec3 nh\u1eafm m\u1ee5c ti\u00eau ch\u00ednh x\u00e1c v\u00e0o tia laser v\u00e0 li\u00ean k\u1ebft c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau m\u00e0 kh\u00f4ng th\u1ec3 g\u1eafn \u0111\u01b0\u1ee3c n\u1ebfu kh\u00f4ng c\u00f3 epoxy. Lafon n\u00f3i: \u201cKh\u00f4ng th\u1ec3 li\u00ean k\u1ebft tr\u1ef1c ti\u1ebfp th\u1ee7y tinh v\u1edbi kim lo\u1ea1i. \u201cB\u1ea1n ph\u1ea3i s\u1eed d\u1ee5ng epoxy, lo\u1ea1i ch\u1ea5t th\u1ea3i kh\u00ed v\u00e0 l\u1eafng \u0111\u1ecdng ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m tr\u00ean g\u01b0\u01a1ng v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn nh\u1ea1y c\u1ea3m kh\u00e1c c\u1ee7a d\u1ee5ng c\u1ee5. \u0110\u00e2y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng nghi\u00eam t\u00fac. Ch\u00fang t\u00f4i mu\u1ed1n lo\u1ea1i b\u1ecf epoxies. Ch\u00fang t\u00f4i \u0111\u00e3 b\u1eaft \u0111\u1ea7u li\u00ean h\u1ec7 v\u1edbi c\u00e1c nh\u00f3m v\u00e0 s\u1ee9 m\u1ec7nh kh\u00e1c \u0111\u1ec3 xem nh\u1eefng kh\u1ea3 n\u0103ng m\u1edbi n\u00e0y c\u00f3 th\u1ec3 mang l\u1ea1i l\u1ee3i \u00edch nh\u01b0 th\u1ebf n\u00e0o cho d\u1ef1 \u00e1n c\u1ee7a h\u1ecd\u201d.<\/p>\n

M\u1ed9t \u1ee9ng d\u1ee5ng quan tr\u1ecdng kh\u00e1c l\u00e0 trong l\u0129nh v\u1ef1c vi c\u01a1 kh\u00ed. Lafon cho bi\u1ebft th\u00eam: \u201cKh\u1ea3 n\u0103ng lo\u1ea1i b\u1ecf kh\u1ed1i l\u01b0\u1ee3ng v\u1eadt li\u1ec7u nh\u1ecf m\u00e0 kh\u00f4ng l\u00e0m h\u1ecfng v\u1eadt ch\u1ea5t xung quanh cho ph\u00e9p ch\u00fang t\u00f4i gia c\u00f4ng c\u00e1c t\u00ednh n\u0103ng vi m\u00f4\u201d.<\/p>\n

C\u00e1c t\u00ednh n\u0103ng hi\u1ec3n vi bao g\u1ed3m m\u1ecdi th\u1ee9 t\u1eeb c\u00e1c l\u1ed7 kim c\u00f3 k\u00edch th\u01b0\u1edbc b\u1eb1ng s\u1ee3i t\u00f3c \u0111\u01b0\u1ee3c khoan trong kim lo\u1ea1i \u2013 m\u1ed9t \u1ee9ng d\u1ee5ng m\u00e0 nh\u00f3m \u0111\u00e3 ch\u1ee9ng minh \u2013 cho t\u1edbi vi\u1ec7c kh\u1eafc c\u00e1c k\u00eanh ho\u1eb7c \u1ed1ng d\u1eabn s\u00f3ng c\u1ef1c nh\u1ecf m\u00e0 qua \u0111\u00f3 \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 truy\u1ec1n qua\u00a0m\u1ea1ch t\u00edch h\u1ee3p quang t\u1eed<\/a>\u00a0v\u00e0 m\u00e1y ph\u00e1t laser. C\u00e1c \u1ed1ng d\u1eabn s\u00f3ng t\u01b0\u01a1ng t\u1ef1 c\u00f3 th\u1ec3 cho ph\u00e9p ch\u1ea5t l\u1ecfng ch\u1ea3y qua c\u00e1c thi\u1ebft b\u1ecb vi l\u1ecfng v\u00e0 chip c\u1ea7n thi\u1ebft cho ph\u00e2n t\u00edch h\u00f3a h\u1ecdc v\u00e0 l\u00e0m m\u00e1t thi\u1ebft b\u1ecb.<\/p>\n

<\/div>\n

Kh\u1ea3 n\u0103ng \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i cho c\u00e1c d\u1ef1 \u00e1n c\u1ee7a NASA<\/h2>\n

Ted Swanson, nh\u00e0 c\u00f4ng ngh\u1ec7 cao c\u1ea5p v\u1ec1 t\u00edch h\u1ee3p chi\u1ebfn l\u01b0\u1ee3c t\u1ea1i Goddard cho bi\u1ebft: \u201cLaser c\u1ef1c nhanh mang l\u1ea1i nh\u1eefng thay \u0111\u1ed5i c\u01a1 b\u1ea3n trong c\u00e1ch ch\u00fang ta c\u00f3 th\u1ec3 x\u1eed l\u00fd v\u1eadt li\u1ec7u vi m\u00f4\u201d. \u201cC\u00f4ng vi\u1ec7c c\u1ee7a nh\u00f3m trong n\u1ed7 l\u1ef1c nghi\u00ean c\u1ee9u n\u00e0y s\u1ebd cho ph\u00e9p Goddard \u0111i\u1ec1u ch\u1ec9nh c\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i n\u00e0y cho nhi\u1ec1u lo\u1ea1i chuy\u1ebfn bay kh\u00e1c nhau.\u00a0c\u00e1c \u1ee9ng d\u1ee5ng<\/a>.”<\/p>\n

\u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau \u0111\u00f3, nh\u00f3m\u2014gi\u1eefa vi\u1ec7c l\u00e0m vi\u1ec7c tr\u00ean m\u1ed9t s\u1ed1 d\u1ef1 \u00e1n n\u1ed5i ti\u1ebfng c\u1ee7a NASA\u00a0tia laze<\/a>\u00a0c\u00e1c d\u1ef1 \u00e1n truy\u1ec1n th\u00f4ng, bao g\u1ed3m Tr\u00ecnh di\u1ec5n R\u01a1le Truy\u1ec1n th\u00f4ng Laser\u2014c\u00f3 k\u1ebf ho\u1ea1ch bi\u00ean so\u1ea1n m\u1ed9t th\u01b0 vi\u1ec7n v\u1ec1 kh\u1ea3 n\u0103ng vi c\u01a1 v\u00e0 h\u00e0n. \u201cSau khi ch\u00fang t\u00f4i c\u00f3 th\u1ec3 ch\u1ee9ng minh kh\u1ea3 n\u0103ng n\u00e0y m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady, ch\u00fang t\u00f4i s\u1ebd c\u1ed1 g\u1eafng \u00e1p d\u1ee5ng n\u00f3 cho nh\u1eefng th\u00e1ch th\u1ee9c hi\u1ec7n c\u00f3 t\u1ea1i Goddard. Nghi\u00ean c\u1ee9u ban \u0111\u1ea7u c\u1ee7a ch\u00fang t\u00f4i cho th\u1ea5y c\u00f4ng ngh\u1ec7 n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c d\u1ef1 \u00e1n tr\u00ean kh\u1eafp NASA\u201d, Lafon n\u00f3i.<\/p>","protected":false},"excerpt":{"rendered":"

An ultrafast laser that fires pulses of light just 100 millionths of a nanosecond in duration could potentially revolutionize the way that NASA technicians manufacture and ultimately assemble instrument components made of dissimilar materials.   A team of optical physicists at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, is experimenting with a femtosecond laser<\/p>","protected":false},"author":1,"featured_media":8031,"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\/8012"}],"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=8012"}],"version-history":[{"count":1,"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/posts\/8012\/revisions"}],"predecessor-version":[{"id":8032,"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/posts\/8012\/revisions\/8032"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/media\/8031"}],"wp:attachment":[{"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/media?parent=8012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/categories?post=8012"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huashu-tech.com\/vi\/wp-json\/wp\/v2\/tags?post=8012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}