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Pardon, but I did not intentionally create "two threads for a question that has been answered several times before". I started one thread simply as an FYI, no questions asked. OTOH the "other thread" IS a specific question, for which I have received useful information. The two are not the same...

I merely posted the link as an FYI for those who might need the information, and the curious. I am not asking for a debate. T.

Yes, I realize that silver is far more expensive than copper, but has anyone considered or used it for a heatsink, especially for small/micro builds, seeing as silver has several percent better thermal conductivity than copper? A common one troy ounce silver round currently runs around US$32-34...

Thought I would post the link to this list that gives thermal conductivities for various metals/alloys. Thermal Properties of Metals, Conductivity, Thermal Expansion, Specific Heat - Engineers Edge fyi, T.

If you decide to go the fiber route, to preserve beam quality you would have to use a single-mode (TEM00) laser precisely focused into the end of a (very small!) singlemode fiber at a specific conical angle (I've read that microscope objectives in micrometer mounts are often used for this very...

Re: ROUND 2!: THE "Skylaser" (laserBtB) groupbuy! Offroad, would you be willing to accept an USPS International Postal M.O. instead of PayPal? I had a Paypal account a long time (years) ago, do not have one now, and I do not want to open another one. If you are, I would like to get into this...

650nm is down by about a factor of ten versus the most visible wavelength (+-560nm), and the atmosphere doesn't scatter red nearly as well as shorter wavelengths like 532 and 450, so you aren't going to see red beams to match the blue and green - even if you do use smoke. There's only one thing...

Interesting thread... allow me to ramble a bit? ;) Perhaps you don't need an entirely waterproof laser if all you need to do is stick the business end of the laser in the water from the top of the tank; would a more "conventional" 445 placed say in a PVC sleeve with a window on the business end...

Has anyone considered the possibility of using .999 silver as a heat sink or part of it (best possible heat conductivity? Say as an insert in a larger copper element Yes, it costs significantly more than copper, but all things considered it wouldn't be that much more expensive. One example...

The lens in the eye is a "simple" lens. Simple lenses don't correct for chromatic aberration, and focus shorter wavelengths closer to the lens and longer wavelengths farther away. I tend to notice this effect when looking at distant mercury-vapor streetlights at night; they tend to have...

Over in the Red laser section Milos posted a link to their 1W red. Does anyone know anything about LaserTo or has anyone ordered anything from them? If so are you happy with it? TIA for your input. Teslanium (formerly the poster once known as Ragnarok ;-) )

:wtf: So is there anyone that actually has this beast yet? Or their 1500mW 445? T.