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Laser

Laser

LASER (Light Amplification by Stimulated Emission of Radiation) je optički izvor koji emituje fotone u dosljednom mlazu. Laserska zraka je obično skoro jednobojna, tj. sadržava jednu valnu dužinu ili nijansu, te se emituje u uskim mlazovima.

1. Aktivni laserski medij
2. Pumpna energija lasera
3. Ogledalo
4. Djelomično ogledalo
5. Laserska zraka

Prvi upotrebljiv optički laser je napravio Theodore H. Maiman 1960 godine.

Koristi se u potrošačkoj elektronici i komunikacijama, astronomiji, nauci, medicini, industriji, vojsci i saobraćajnoj sigurnosti.

Kategorizacija

Demonstracija rada lasera

Po tipu

  • Gasni laseri
  • Hemijski laseri
  • Eksimerski laseri
  • Čvrsti laseri
  • Poluprovodnički laseri
  • Pigmentni laseri

Po izlaznoj snazi

  • 5 mW - laser u CD-ROM uređaju
  • 5-10 mW - laser u DVD plejeru
  • 100 mW - laser u CD-R uređaju
  • 250 mW - izlazna snaga Sony SLD253VL crvene laser diode, korištene u 48-52 brzinskim CD-R pisačima
  • 1 W - izlazna snaga zelenog lasera u HVD (Holographic Versatile Disc)
  • 100 to 500 Watt (maks. 1.5 kW) - tipični zatvoreni CO2 laseri korišteni u industrijskim mašinama (rezački laseri).

Također pogledajte

Vanjski linkovi


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