What gas produces a purple laser?

Question

My understanding is the excitation of atoms in gas is involved in producing the lasing effect. I also know that different lasers use different types of gas. What gas, when used in a laser would produce a purple color?

Answer 1

Argon gas is most efficient at producing green laser light and blue laser light, but can also generate violet and ultraviolet wavelengths. The particular color desired is often selected via a tuning element, such as a dispersive prism, in the optical cavity.

Krypton is another gas which can produce many colors including ultraviolet, violet, blue, green, red (where it is most efficient) and even infrared.

Sometimes the violet laser lines are considered purple, although generally it will look more purple if it has some red light mixed in. Argon and Krypton can be mixed together to make a gas laser which can then generate a variety of colors simultaneously. Such a mixed-gas laser could generate very saturated purple colors, either directly (e.g., blue + red) or by filtering the green light out of a red + green + blue beam.

There are no doubt other candidate gases, but these are well known choices. Hmm.... I'm not sure what color the first answerer's suggestion would lase at.

Answer 2

A gasoline laser is a laser wherein an electric powered modern is discharged via a gasoline to produce mild. the 1st gasoline laser, the Helium-neon, exchange into co-invented by utilising American physicist William R. Bennett, Jr. and Iranian physicist Ali Javan in 1960.

Answer 3

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