Search results

Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please You could extract the Holmium laser and give it to me. :whistle:

Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please Freight shipping though. Unless you live close by and can pick it up yourself it probably won't be worth the hassle. :(

Now THAT would be impressive. Exactly what kind of lab do you have access to that has the capabilities to manufacture a MASER?

My 594 (HeNe ofc) looks kinda TM33 when spread out, and it's probably <3mw at best. I'd post a photo, but the pattern gets washed out. :(

I remember seeing this on Reddit a while ago. Any idea if he finished it?

Personally, I like the look of the knurled grip from the second photo, but I think the end cap design from the host in the first picture looks better.

Wouldn't HeNes actually be the oldest surviving laser technology since ruby lasers fell out of service a number of years ago?

I had no idea microchip 561nm lasers even existed in any usable form lol. But I guess with the efficiency boost from the periodic poling it makes sense.

Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please This one's been listed for at least a year. He has a nice whitelight Ar/Kr listed too.

Sounds like you've got most of it down pat. I wasn't trying to discourage you, if you think you're up to the task then by all means go for it. I was just trying to illustrate the complexity of such a project. It's like jumping into a basketball game without having practiced all season. It's...

Sorry to get back to you so late, that is a great price for a 561nm optic though (or any optic mind you). But depending on what you want out it may or may not be what you need. It depends on whether the 1123nm is doubled intra-cavity or extra-cavity (inside the 1123nm cavity or outside)...

Re: 561nm Yellow YAG (?) from Lumens Varia Eye Laser I highly doubt the YAG itself has anything other than AR coatings on it. It even looks like there's a HR mirror to the left of it in your initial photo, though it's difficult to figure out the entire resonator design without a better photo...

Re: 561nm Yellow YAG (?) from Lumens Varia Eye Laser Ah. I see what you're saying. My bad. Do you know what kind of NLO crystal this particular laser uses? Or any ideas on the resonator configuration? From the picture, it looks like there's a mirror directly behind the YAG, so probably not a...

Re: 561nm Yellow YAG (?) from Lumens Varia Eye Laser Well, you can side-pump pretty much anything if you hit it hard enough, it just might not have very decent beam quality. AFAIK almost all commercial CW 561nm is 808nm diode -> 1123nm Nd:YAG -> 561nm NLO crystal. There is probably some exotic...

Re: 561nm Yellow YAG (?) from Lumens Varia Eye Laser The YAG has heatsinking on only one side, so it was probably designed to be side-pumped. As for using a bar, isn't that what's side-pumping it in the photo?

Sign me up!

Is 1µg the LD50 or the absolute lethal dosage for polonium?

The normies have gotten ahold of Pepe again it seems.

To be fair, making a diode has a lot more to do with semiconductors and crystallography than it does laser science, and his University does supposedly have an epitaxy chamber. Though I'd agree with you that there is a slim at best chance that it's every going to happen. I brought it up because...