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I was on base across the river. It was nearly silent. The sound went over us.

Thanks I could not read it

https://www.profelasers.com/nouvelle-diode-laser-jaune-nouvelle.html We can buy them.

I saw a launch and it was impressive for sure. So are fireworks and much cheaper

I have two coherent dual pump dyes. I pump with 5w 532nm ftom a millennia and get 30mw 80mhz 2 ps pulses. It’s a bitch to align and is three feet long. Leaks and makes a mess. But the dye jet if kept clean can last months. It uses an aom on the end as a cavity dumper and a plate for tuning...

And try to get them to sell you the fiber…..

Until we have ….never….antigrav we wont have a real shuttle. They watched too much Star Trek.

Yea huge

I have Timelapse videos but can’t upload them

Not sure. Been a while. I went to do this and didn’t because I got busy. I’ll re read the paper.

https://4lasers.com/en/components/crystals/laser-crystals/pr-ylf-crystals https://www.crylink.com/product/prylf/ Random google. Price is not too horrible.

There is a Pr doped material pumpe by 445nm. It’s not easy to find and it’s mildly expensive. After that it’s just some optics. It could be done but alignment in such a small cavity could be challenging. I’d love to have 607nm...

Looking at scattered light in air or fog from a handheld laser say under 1w has zero chance of harming you. Now you hit your neighbors bumper and it’s chrome and it comes back on you as a direct reflection is game over possibly. It would depend on distance and how concentrated the beam is on...

Yea not my style. I fixed it. Who ever you are I wish you well and please leave me alone

Deleted for the sake of my rep

Next we need to be able to project fire suppression over the same distance to not burn down the forest. I would not trust myself with such a toy. Squirrel what squirel Why does that deer have a tattoo. Opps flat tire on neighbors lawn tractor. Why is my wives ice tea boiling…..

I have heard of measuring the electric field with a small antenna mounted by the beam hitting a surface. Seems it induces a current. This could let you use a spec analyzer all be it an expensive one. I’m making the next part up. You could also try some form of interferometry and observe the...

I don't have them handy anymore. They were part of a Keyence device we had that was used with a similar o'scope. WAY pricey stuff. Had THZ stuff with it too. Was an imaging system proposal for medical applications. I can dig up the papers it is not classified or anything at least anymore...

Mine was a red laser diode that did maybe 1mw. Came from radio shack I think and was couple hundred dollars. 80s? First laser was a bare hene tube I drove to death with no ballast on a neon sign transformer. Just got random flashes of dots and I was amazed. I just found that transformer few...

Just curious what you will use this for?