Podcast
Questions and Answers
What does the word 'laser' stand for?
What does the word 'laser' stand for?
- Luminous amplification through stimulated radiation emission
- Light amplification by stimulated emission of radiation (correct)
- Luminous amplification of stimulated electromagnetic radiation
- Light amplification through stimulated emission of rays
Who built the first laser in 1960?
Who built the first laser in 1960?
- Theodore Maiman (correct)
- Charles H. Townes
- Nikola Tesla
- Arthur Leonard Schawlow
What property distinguishes a laser from other light sources?
What property distinguishes a laser from other light sources?
- Coherence (correct)
- Color spectrum
- Brightness
- Intensity
What is the term for a laser beam's ability to stay narrow over great distances?
What is the term for a laser beam's ability to stay narrow over great distances?
What is the application of spatial coherence in lasers that enables precision cutting?
What is the application of spatial coherence in lasers that enables precision cutting?
What is the typical pulse length of a ruby laser?
What is the typical pulse length of a ruby laser?
What is the wavelength of light produced by a ruby laser?
What is the wavelength of light produced by a ruby laser?
How is the ruby rod in a ruby laser typically pumped?
How is the ruby rod in a ruby laser typically pumped?
What type of laser is a ruby laser?
What type of laser is a ruby laser?
What distinguishes the ruby laser from most solid state lasers?
What distinguishes the ruby laser from most solid state lasers?
Flashcards
Laser's meaning
Laser's meaning
Light Amplification by Stimulated Emission of Radiation
First laser builder
First laser builder
Theodore Maiman
Laser's special quality
Laser's special quality
Coherence
Laser beam's narrowness
Laser beam's narrowness
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Laser cutting's basis
Laser cutting's basis
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Ruby laser pulse time
Ruby laser pulse time
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Ruby laser's wavelength
Ruby laser's wavelength
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Ruby laser's rod pump
Ruby laser's rod pump
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Type of ruby laser
Type of ruby laser
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Ruby laser's special property
Ruby laser's special property
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Study Notes
Laser Basics
- The word 'laser' stands for Light Amplification by Stimulated Emission of Radiation.
Laser History
- The first laser was built in 1960 by Theodore Maiman.
Laser Properties
- The property that distinguishes a laser from other light sources is its spatial coherence.
- Spatial coherence enables precision cutting in laser applications.
Laser Characteristics
- A laser beam's ability to stay narrow over great distances is known as its collimation.
- The typical pulse length of a ruby laser is around 20-30 milliseconds.
- Ruby lasers produce light with a wavelength of 694.3 nanometers.
Ruby Laser
- A ruby laser is a type of solid-state laser.
- The ruby rod in a ruby laser is typically pumped by a flash lamp.
- What distinguishes the ruby laser from most solid-state lasers is its three-level energy system.
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