what is active material in ruby laser
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❇️ The active laser medium (laser gain/amplification medium) is asynthetic ruby rod that is energized through optical pumping, typically by a xenon flashtube.
❇️ Ruby has very broad and powerful absorption bands in the visual spectrum, at 400 and 550 nm, and a very long fluorescence lifetime of 3 milliseconds.
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Answer:
The monocrystal of synthetically generated sapphire (Al₂O₃) that serves as the ruby laser's active component has a small percentage of the Al³⁺ ions substituted by chromium Cr³⁺ transition-metal ions.
Explanation:
The first laser to produce laser radiation was a ruby laser (Maiman, 1960). The first laser used in medicine was called Ruby. Although it is not as plainly used today, it is largely discussed here from a historical perspective. A ruby crystal has strong physical and chemical qualities because of the sapphire matrix, including excellent hardness and durability, good thermal conductivity, and chemical stability. It was produced using the Czochralski procedure and was of extremely high grade. The ruby may operate in a pulsed regime at room temperature, including free-running, Q-switched, and, incredibly, mode-locking. Today, the ruby laser is only utilised in dermatology after initially being popular in ophthalmology and dermatology (removing tattoos, pigmented spots, etc.).
Thus, a solid-state laser known as a ruby laser employs the artificial ruby crystal as its laser medium.