Search results

900$ for a 250nm led and 10k$ for 250nm laser... whoaaah.. why so much for a freaken led?

it doesn't have to be 100% exact but the more exact the better.. :) maybe I should look into powerful LEDs instead .. although I need laser light.. I think it's better to put if off for now I'm a little behind with photonics atm.. and some thousands to tens of thousands of dollars short :o

sorry I should have said solid-state lasers but aren't lasers made from doped semiconductors the same material that leds are made from the only difference is that lasers emit a specific wavelength?.. The experiment has to do with plasmons.. and it's a long shot.. it has to do with surface...

The lasers don't have to be totally monochromatic but power is dependent on particular photon emission , so it doesnt have to be exact .. you can try it yourself with a 400-405nm and a 650nm laser.

this is similar to what I'm trying to do but wihout expensive equipment for now.. http://laserpointerforums.com/f54/need-cheap-lasers-exact-frequencies-80667.html their semiconductor material won't last for long.. they bombard them with hard rays to strip the inner electrons.. there is always...

this is flash photolysis ... you can't breakdown air with anything... if you mean dielectric breakdown that is made with electrons and unless you use plasmon laser it won't work never with normal super powerful laser because air would be turned to a plasma before so you don't breakdown the air//...

it depends what kind of ionization you want if you want to make ozon then u need power.. other than that its kind of flash photolysis.. you have to find the exact electron band wavelength if you go up or down a notch it won't work

Hi guys I'm new to this forum and I have no idea about prices of lasers, I need to conduct an experiment with two lasers and I need to control exactly the difference of their wavelengths. I know you can shift the wavelength with a refractive media but I was wondering if there is another way.. I...