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L'invention du laser, qui a inventé le laser?
Aujourd'hui, le laser est utilisé dans de nombreux domaines, de la santé à la technologie, de l'armée au divertissement à la vie. Le premier laser optique de travail a été fait par Theodore Maiman en 1960, mais l'histoire de la découverte de laser a commencé avec Albert Einstein au début des 1900 années.
Le laser est une abréviation utilisée pour l'anglais (amplification de la lumière par émission de rayonnement stimulée). Fondamentalement, le laser est basé sur des photons légers formés par des transitions d'électrons entre les niveaux d'énergie atomique ou moléculaire. C'est un dispositif qui produit la lumière par des émissions évoquées. En 1917, Albert Einstein suggéra une théorie des émissions stimulée par l'arrière.
Concept Maser
En 1958, Charles Townes et Arthur Schawlow Maser (abréviation d'amplification des micro-ondes par émission de radiation stimulée) j'ai développé. Maser maintient une place très importante dans le développement du laser. Maser a été utilisé pour renforcer les signaux radio dans l'exploration spatiale.
Premier laser
Deux ans après la découverte de Maser, Théodore Maiman a créé le premier laser en 1960. Toutefois, Gordon Gould a été la première personne à utiliser le mot laser en 1957.
En 1957, il a été inventé par Gordon Gould pour le laser optique, mais ce n'était pas un projet très réussi pour obtenir des brevets. Gordon Gould a reçu un brevet pour le laser qu'il a inventé en 1977. Par conséquent, la démonstration au laser de Theodore Maiman est considéré comme le premier laser à succès.
En 1960, il a inventé le laser à gaz d'Ali Javan. Il s'agit de la première utilisation du changement d'énergie électrique dans l'histoire du laser. En 1962, il a suivi la découverte du laser semi-conducteur par Robert Hall. Deux ans plus tard, l'invention de Kumar Patel, laser dioxyde de carbone, et la télémétrie Hal Walker est arrivé.
Traitement des yeux avec laser
Le Dr Steven Trokel a inventé un appareil laser excimer dans les années 70. Cependant, le développement de cet appareil avec l'utilisation de traitements oculaires avec l'ordinateur a été dirigé par l'équipe du Dr Steven Trokel en 1982. En 1987, la première chirurgie oculaire au laser a été effectuée. Depuis lors, le traitement des yeux au laser est devenu un traitement ordinaire.
Tours et applications laser
Depuis les années 1960, le laser a évolué avec des études d'amélioration continue, des inventions et des applications. L'utilisation du laser commençant par le traitement des yeux est maintenant répandue dans d'autres secteurs aussi bien. Il est utilisé dans tous les appareils électroniques pratiques. Il est utilisé dans de nombreuses applications et la recherche scientifique dans les installations médicales.
Les lasers sont également utilisés pour faire des spectacles de lumière dans les concerts ou les clubs. L'impression laser est devenue très courante. la spectroscopie, les mesures électro-optiques et la microdisséquation utilisent également la technologie laser. En dentisterie, les interventions chirurgicales, le soudage et les systèmes de défense antimissile bénéficient de cette technologie.
Depuis l'invention du dispositif laser, les scientifiques se sont demandé où il peut être utilisé et a fait beaucoup de recherches. Fait avec cette recherche, le développement, et les inventions, le laser est devenu une partie inestimable de la société moderne.
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