HeHg or HeSe laser pics anyone?

LordKaramazov said:

OMG! That is so cool...thats a He-Se iirc! Awesome! :drool:

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Yeah that's HeSe

suiraM said:

Anyone know the gain on the HeSe lines?

Seems like something that could be made into a kit or group buy with a decent design.

The boiling point is higher than for mercury, but both are inside the operating ranges for a number of fairly low cost materials (e.g. quartz tubing, tungsten heaters), though the lower efficiency might be an issue for some (realistically, though... it's the neat multiline spectrum that's appealing about HeSe, right?).

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It's not something you can easily make into a kit. You need to get pyrex tubes specially made, with the ends cut at precise angles ( for the brewster windows ). Then you need to get vacuum pumps, helium, selenium, electrodes, heaters with controllers and some sort of high voltage DC power supply. Then you need optics and quartz plates for the brewster windows. And then you have the fun of aligning it all.

No need for quartz tubing, pyrex would work.

I've been wanting to build one for ages.

Toaster said:

I found a cool Wiki Page you might not all have seen, pretty interesting

List of laser types - Wikipedia, the free encyclopedia

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Dont take this the wrong way, but you are out of your class on this thread. :tinfoil:

Ya know, about 6 months before I got into hobbyist lasering with diodes and prebuilts, I was looking into building my own CO2 laser. Then I realized that I didn't have thousands of dollars to spend to make one and probably fail, nor did I have the engineering ingenuity to make it work on the first try....

So there goes that dream! Maybe some day.

It doesn't take thousands of dollars, but is it fairly complicated and engineering skills are required.

Well, I mean a high-quality one built entirely from scratch.

But yes, I don't have the skill anyway.