1.15 I'd use the stock cu doped ZnS phosphor link I sent you. Cu is the dopant that enables glowing, its about 6 parts per million fused into the ZnS when its fired in a oven, then ground. So you just buy from the link. I know the Post Apple stuff works.
For 3.39 I do have some spare sensor modules, you need +/- 9 to 15 volts (ie 2 9 volt batteries) and a small metal disk with a chopper wheel on it. You'll also need something to power the TE that cools the sensor. It will run without the TE powered up, but the detection is then weak. The sensor only responds to pulsed IR light, so you need to make the laser "blink". I've gotten away with breaking beams with my spread fingers and watching a scope, but if you want to read it with just a voltmeter, you need a spinning disk with holes in front of it or some sort of spining plastic blade.. Don't care about the speed of the disk etc, as long as something chops the beam, ie fan from a PC, toy something etc.
Deal of the century, one module, one time only, with processing board, working, tested: 35$ and shipping. Thats what I paid for them. They cover 2 to 5 microns. One glitch, cannot be exported out of the states. 3.39 is so damn hard to detect, and high end thermal imagers (military uses 3.5 as well as 8 microns) dont grow on trees, so this is probably the only way you'll ever see it, unless you get lucky with a detector card of the type that is UV pumped. Once you find you have a beam, call Sam Goldwasser and sell him that thing... The module is easy to test, it'll "see" the flame from a propane torch or match. It ignores visible light.
I just looked at a chart, you may still see the 3.39 with the ZnS:cu phosphor, but barely.
PM me if you want one, I'll actually bother to check my PMs for the next few days.
Steve
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