10 Questions
What does the word 'laser' stand for?
Light amplification by stimulated emission of radiation
Who built the first laser in 1960?
Theodore Maiman
What property distinguishes a laser from other light sources?
Coherence
What is the term for a laser beam's ability to stay narrow over great distances?
Collimation
What is the application of spatial coherence in lasers that enables precision cutting?
Laser cutting
What is the typical pulse length of a ruby laser?
Millisecond
What is the wavelength of light produced by a ruby laser?
694.3 nm
How is the ruby rod in a ruby laser typically pumped?
By a flashtube
What type of laser is a ruby laser?
Three level solid state laser
What distinguishes the ruby laser from most solid state lasers?
Produces light in the visible range
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.
Test your knowledge about lasers with this quiz! Learn about the history, functioning, and applications of these devices. From the acronym to the first laser built, challenge yourself with questions about the fascinating world of lasers.
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