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Production of Laser Beams

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1. Laser beams are produced by:





2. The process of producing laser light starts with:





3. What is the active medium in a laser?





4. Pumping in lasers refers to:





5. Which of the following is used as a pumping source?





6. Population inversion means:





7. Population inversion is necessary for:





8. Which mirrors are used in a laser setup?





9. One mirror in a laser setup is fully reflective while the other is:





10. The light emitted by laser is:





11. The process in which an excited atom emits a photon of the same energy as an incoming photon is called:





12. Which of the following is a necessary condition for laser production?





13. Spontaneous emission is:





14. Stimulated emission leads to:





15. A laser cavity is also called:





16. Which of the following determines the wavelength of laser light?





17. Ruby laser uses which type of pumping?





18. Helium-Neon laser uses which pumping?





19. Laser light is amplified inside the cavity by:





20. Which part of laser allows emission of a narrow, intense beam?





21. Which phenomenon is exploited in laser production?





22. The beam emitted from a laser is:





23. Nd:YAG laser produces:





24. Which type of mirror reflects all photons back into the medium?





25. The main steps in laser production are:





26. Laser light has which of the following properties due to production process?





27. Which medium is used in CO₂ laser?





28. Optical pumping involves:





29. The purpose of the mirrors in laser production is:





30. The emitted laser beam is highly:





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