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Laser Technology and Applications

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Questions and Answers

What is the full form of LASER?

Light Amplification by Stimulated Emission of Radiation (correct)

Longitudinal Axis Stimulated Emission Radiation

Light Amplification by Stimulation of Emission of Rays

Low Amplitude Stimulated Emission Rays

How do lasers create concentrated light beams?

By exciting electrons

By exciting protons

By exciting atoms (correct)

By exciting neutrons

Who built the first working laser using a ruby crystal in 1960?

Nikola Tesla

Thomas Edison

Theodore Maiman (correct)

Albert Einstein

In which decade did practical laser development emerge?

1950s Signup and view all the answers

What is the main advantage of lasers in the field of manufacturing?

High speed and precision Signup and view all the answers

Which field saw breakthroughs enabled by the use of lasers?

Telecommunication Signup and view all the answers

What does the acronym LASER stand for?

Light Amplification by Stimulated Emission of Radiation Signup and view all the answers

Which process is responsible for the production of lasers?

Optical amplification Signup and view all the answers

What is the function of the gain medium in a laser system?

To maintain the amplification process Signup and view all the answers

How are excited particles in the gain medium stimulated to emit light in a laser?

By absorbing photons with higher energy Signup and view all the answers

What maintains the amplification of light in a laser system?

Optical feedback from mirrors or prisms Signup and view all the answers

What is the role of mirrors in the production of lasers?

To maintain optical resonator and amplify light waves Signup and view all the answers

What happens when electrons in the gain medium absorb extra energy?

"Excites" the electrons enough to move from a lower-energy orbit to a higher-energy orbit Signup and view all the answers

What creates a chain reaction of light emission in the gain medium?

"Excited" particles stimulating nearby excited particles Signup and view all the answers

What is responsible for amplifying the light waves in a laser system?

"Partial" reflection from mirrors Signup and view all the answers

In what way is the emitted light in a laser unique?

It is concentrated and coherent. Signup and view all the answers