12 Questions
What is the laser medium used in a ruby laser?
Synthetic ruby crystal
Who developed the first successful ruby laser in 1960?
Theodore Maiman
What is the wavelength of the light emitted by a ruby laser?
694.3 nm
What property of chromium makes it crucial for the lasing behavior of ruby crystal?
Absorbing green and blue light
How are the ends of the ruby rod prepared in a ruby laser?
Flat and parallel
What type of lamp is used for pumping ions in a ruby laser?
Xenon lamp
What is the main function of the energy levels E3I and E3II in the ruby laser?
To provide three energy levels for population inversion and lasing action
What is the wavelength of the pump band that corresponds to the absorption of light by the ground state of Cr+3 ions?
550 nm and 400 nm
What happens to the energy levels in the upper bands after the Cr+3 ions absorb light?
They rapidly lose some of their energy to crystal lattice
What is the result of the spontaneous emission photon by Cr+3 ion at E2 level to E1?
Stimulated emission by other Cr+3 ions
Why are ruby lasers considered economical?
They are in solid form and hence there is no chance of wasting material of the active medium
What is the class of lasers that ruby lasers are known as?
Class-I lasers
Explore the construction and key characteristics of a ruby laser, the first successful solid-state laser developed by Maiman in 1960. Learn about the synthetic ruby crystal as its laser medium, the emission of deep red light at a wavelength of 694.3 nm, and the role of chromium in giving ruby its characteristic red color.
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