[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.cmsozzn.cz\/soucasne-vyuziti-laseru\/#Article","mainEntityOfPage":"https:\/\/www.cmsozzn.cz\/soucasne-vyuziti-laseru\/","headline":"Sou\u010dasn\u00e9 vyu\u017eit\u00ed laser\u016f","name":"Sou\u010dasn\u00e9 vyu\u017eit\u00ed laser\u016f","description":"Slovo laser vzniklo z\u00a0anglick\u00e9 zkratky Light Amplification by Stimulated Emission of Radiation. \u010cesky to znamen\u00e1 zesilov\u00e1n\u00ed sv\u011btla pomoc\u00ed stimulovan\u00e9 emise z\u00e1\u0159en\u00ed. Laser je tedy \u00fazk\u00fd paprsek z\u00a0l\u00e1tky, jej\u00ed\u017e atomy pro\u0161ly um\u011bloup\u0159em\u011bnou na vy\u0161\u0161\u00ed energetickou hladinu. Prvn\u00ed laser vytvo\u0159il v\u00a0roce 1960 americk\u00fd v\u011bdec Theorode Maiman p\u0159i pokusech s\u00a0krystaly rub\u00ednu. Od t\u00e9 doby se technika...","datePublished":"2020-09-16","dateModified":"2023-05-01","author":{"@type":"Person","@id":"https:\/\/www.cmsozzn.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.cmsozzn.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/e32c915fa5b274a4469e3ef5c1f9837e76577a60613858c5c8a74a3de98e33bc?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/e32c915fa5b274a4469e3ef5c1f9837e76577a60613858c5c8a74a3de98e33bc?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"cmsozzn.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.cmsozzn.cz\/wp-content\/uploads\/img_a295731_w2181_t1507188641.jpg","url":"https:\/\/www.cmsozzn.cz\/wp-content\/uploads\/img_a295731_w2181_t1507188641.jpg","height":0,"width":0},"url":"https:\/\/www.cmsozzn.cz\/soucasne-vyuziti-laseru\/","about":["V\u00fdrobky"],"wordCount":435,"articleBody":"\tSlovo laser vzniklo z\u00a0anglick\u00e9 zkratky Light Amplification by Stimulated Emission of Radiation. \u010cesky to znamen\u00e1 zesilov\u00e1n\u00ed sv\u011btla pomoc\u00ed stimulovan\u00e9 emise z\u00e1\u0159en\u00ed. Laser je tedy \u00fazk\u00fd paprsek z\u00a0l\u00e1tky, jej\u00ed\u017e atomy pro\u0161ly um\u011bloup\u0159em\u011bnou na vy\u0161\u0161\u00ed energetickou hladinu. Prvn\u00ed laser vytvo\u0159il v\u00a0roce 1960 americk\u00fd v\u011bdec Theorode Maiman p\u0159i pokusech s\u00a0krystaly rub\u00ednu. Od t\u00e9 doby se technika vytv\u00e1\u0159en\u00ed laser\u016f neust\u00e1le zdokonaluje a dnes jsou lasery vyu\u017e\u00edv\u00e1ny v\u00a0ka\u017edodenn\u00edm \u017eivot\u011b.\t\tP\u0159esn\u00e9 \u0159ez\u00e1n\u00edNej\u010dast\u011bji se laserov\u00e9 paprsky vyu\u017e\u00edvaj\u00ed v\u00a0pr\u016fmyslov\u00e9 v\u00fdrob\u011b k\u00a0\u0159ez\u00e1n\u00ed tvrd\u00fdch materi\u00e1l\u016f. Chirurgov\u00e9 pak pou\u017e\u00edvaj\u00ed jemn\u011bj\u0161\u00ed lasery pro operace o\u010d\u00ed nebo plastick\u00e9 operace. D\u016fvodem vyu\u017eit\u00ed laser\u016f v\u00a0l\u00e9ka\u0159sk\u00e9 v\u011bd\u011b je jejich p\u0159esnost. Paprsek laseru je a\u017e tis\u00edckr\u00e1t p\u0159esn\u011bj\u0161\u00ed ne\u017e skalpel. Z\u00e1rove\u0148 teplo, kter\u00e9 paprsek p\u0159i \u0159ez\u00e1n\u00ed uvol\u0148uje, okam\u017eit\u011b zastavuje krv\u00e1cen\u00ed z\u00a0po\u0161kozen\u00fdch c\u00e9v. D\u00e1le se laser pou\u017e\u00edv\u00e1 k\u00a0uvol\u0148ov\u00e1n\u00ed zane\u0161en\u00fdch c\u00e9v usazeninami.\tP\u0159esn\u00e9 m\u011b\u0159en\u00edAbychom zjistili, jak je M\u011bs\u00edc daleko od Zem\u011b, nepou\u017eijeme k\u00a0tomu m\u011b\u0159\u00edc\u00ed p\u00e1smo nebo jin\u00fd b\u011b\u017en\u00fd postup, ale pou\u017eijeme k\u00a0tomu laserov\u00fd paprsek. Nev\u011b\u0159\u00edte? Do roku 1969 tomu opravdu nikdo nev\u011b\u0159il, ale v\u00a0tomto roce se povedlo tuto obrovskou vzd\u00e1lenost zm\u011b\u0159it pomoc\u00ed laseru s\u00a0p\u0159esnost\u00ed na centimetry. Pos\u00e1dka Apolla 11 zanechala na povrchu M\u011bs\u00edce reflektory, kter\u00e9 byly zam\u011b\u0159eny paprskem ze Zem\u011b. V\u00fdsledn\u00e1 vzd\u00e1lenost 384 000 km byla vypo\u010d\u00edt\u00e1na podle \u010dasu, za kter\u00fd se paprsek vr\u00e1til zp\u011bt na Zem.\tDal\u0161\u00ed b\u011b\u017en\u00e9 vyu\u017eit\u00edDiodov\u00e9 lasery jsou levn\u00e9 a doned\u00e1vna byly vyu\u017e\u00edv\u00e1ny hlavn\u011b k\u00a0p\u0159enosu informac\u00ed z\u00a0kompaktn\u00edch disk\u016f. Dnes se tak\u00e9 pou\u017e\u00edvaj\u00ed ve \u010dte\u010dk\u00e1ch \u010d\u00e1rov\u00fdch k\u00f3d\u016f, skenerech a tisk\u00e1rn\u00e1ch.\t\tGama lasery a zak\u0159iven\u00e9 laserov\u00e9 paprskyV\u011bdci se st\u00e1le sna\u017e\u00ed vyv\u00edjet nov\u00e9 aplikace laser\u016f. V\u00a0roce 2007 se v\u011bdc\u016fm na okam\u017eik povedlo vytvo\u0159it nestabiln\u00ed soustavu pozitronu a elektronu zvanou pozitronium. V\u00a0budoucnu by to mohl b\u00fdt zdroj pro superv\u00fdkonn\u00e9 gama lasery. V\u00a0roce 2009 p\u0159i\u0161li arizon\u0161t\u00ed v\u011bdci na metodu, jak vytv\u00e1\u0159et zak\u0159iven\u00e9 laserov\u00e9 paprsky, kter\u00e9 za sebou zanech\u00e1vaj\u00ed oblouk plazmy. Tyto oblouky by mohly b\u00fdt v\u00a0budoucnu vyu\u017eity jako koridory pro letadla, kter\u00e1 prol\u00e9taj\u00ed v\u00a0bou\u0159ce a jsou n\u00e1chyln\u00e1 na \u00fadery blesk\u016f.                                                                                                                                                                                                                                                                                                                                                                                        4.4\/5 - (7 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Sou\u010dasn\u00e9 vyu\u017eit\u00ed laser\u016f","item":"https:\/\/www.cmsozzn.cz\/soucasne-vyuziti-laseru\/#breadcrumbitem"}]}]