Still More Fun With Lasers!

Posted 2006.07.29 0.00 in Lasers by Stephanie

I went down to the basement and dug up an old Helium Neon laser I bough several years ago at a surplus store. It’s low powered, definately <5mW and perhaps even <2mW.

I took a bunch of pictures of it, and some comparison shots of it and my Pulsar and Greenie. With the HeNe dot and the Pulsar dot next to each other, you can see the difference in wavelength. The HeNe is 632.8 nm and the Pulsar is 650 nm – the difference between Orange/Red and a deeper Red.

Obviously, the word of the month is Lasers!

Helium Neon Laser
HeNe Laser Tube Exposed

HeNe Laser vs Pulsar
HeNe Laser vs Pulsar

HeNe Laser vs Greenie
HeNe Laser vs Greenie