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Yeah, I didn't notice the contradiction when I posted my reply, sorry about that. What I meant is that I was talking particularly about ionization caused by lasers (direct heating using a laser). Wouldn't I be correct then about the fact that you would need waves of greater frequency than that...

Haha, no problem, I'm still in High School as well (final year actually) XD Joeyss mentioned something similar. My guess is that, since the energy of a photon depends on the frequency of the wave and the Planck constant, altering the output power wouldn't make a difference. When we are talking...

Me too! :D I love the physics behind lasers (and physics-especially particle physics-in general). I aspire to become a physicist, but I have 2 and a half more years before going to University (stupid mandatory 2-year old military service :( ). I can't wait to start learning about the fascinating...

I'm sorry Cyparagon, I kinda missed your point. I didn't claim that anything that's ionized can also cause cancer. I merely said that wavelengths beyond ultraviolet may cause ionization and therefore cancer, leukemia etc. So, my question regarding your post, how can a visible laser pulse ionize...

Thanks doubleone44, that's interesting. Unfortunately this doesn't answer my question entirely, but thanks nonetheless :)

Eye protection is a given. I'm not talking about that. I am talking about when a laser has a wavelength shorter than that of UV light. I think cancer is caused by long exposure rather than rapid pulse. And I'm not sure if having a high powered laser is that important. Since the energy of a...

Hey everyone, I have a question. It might appear stupid to some but I'll go ahead anyway. As you probably know already, ionization is the process when an atom is given enough energy and it loses (or gains) electrons as they get excited to higher states (eventually leaving the atom). And, as we...

Sure man ;)

I think that you may have confused me with Eitan, who is the owner of Sci-Fi lasers. His account here is Thejoker301

Hey, you must have made a mistake in the profile you're looking for since I don't know how to make lasers :P Maybe the guy you're looking for has a similar name and you confused the two. :)

Hey Thejoker301, I don't know if you've noticed, but I'm the guy who sent you an e-mail a couple of weeks ago about a custom build (for about 50 euros). Listen, I'm interested in buying the 1W version of the SF501B Blue laser. However, I intend to buy it for Christmas, so will the offer expire...

445nm or 450nm I don't really mind actually :) I doubt that the difference would be noticeable unless put side-by-side. I could be wrong though

I will :)

Cool, thanks 3Pig

Thanks skeet157 :) Do you think that I should go for the second one? You've said that it sent legit lasers and it's more than 30 bucks cheaper than the one in Sci-Fi lasers

USAbro, thanks for the link, I'll check it out :) As far as Sci-Fi lasers go, I've heard that It's one of the best websites to by laser pointers from. I've talked to the guy who owns it and he seems pretty reliable as well

Thanks, I don't really know how to use the forums very well yet XD

Hey guys, this is my first thread/post here, so go easy on me XD (I just checked that this is actually my second one, but the first one was a long time ago and I totally forgot that I made it lol) So, I'm interested in buying a 1W 445/450nm laser pointer, but money is an issue. I found some...

Guys I'm interested in buying that 400mW laser too, could you share your opinion with me? Should i risk it and buy the one from laserpointerpro or buy the one from Lazerer (Hence it is almost certain that it will be overspec and reliable)?