I connected my chinese laser pointer labeled <8mW to a laser power meter with a photo diode and got heavy spikes on the oscilloscope. Hazarding a wild guess based on your question, I'd say that you might be interested in doing some holography experiments with a green laser pointer.This paper details how to do professional quality holography with a Red Laser Pointer as the source.
Researchers are interested in diamond-based laser pointer mainly for their ability to transmit power over long distances with very little interference. They might have important applications in laser ranging, space communication, and - let's be honest - weapons. At 380 watts, the newly developed diamond laser has enough power to slice through steel.
Anytime green laser pointer are used, student should be reminded of the dangers of working with lasers. If you're looking to have a little weekend science-lab fun with lasers it turns out that in the heart of every cheap laser pointer is a fire-starting, balloon-popping, monster.
Last month I spent a week out at Los Alamos National Laboratory vaporizing things with a high powered laser pointer . Now, as I drown in data that I collected out there, I thought I'd take a moment to talk about lasers.When I tell people that I zap things with lasers, I can almost see the mental images flickering behind their eyes.If you've ever used a laser pointer you know that even though it gives off visible (usually red or green) light, you just see a dot where it is pointing.
Early lasers, based on the ideas of Albert Einstein, were very expensive, highly technical devices. The 1980s saw the development of cheaper and smaller green laser pointer diodes, and laser pointers became a reality. With a focusing lens and more powerful light sources, laser pointers produced a visible dot that could be used in astronomy, classrooms, business presentations, and more. Since then, laser pointers have become commonplace items, used in many industries and hobbies.
While initially lasers are great for novices in high stress situations, they essentially are a crutch to proper shooting. If you teach yourself to aim on a pistol that has a laser, then you go to one that does not, you won't really know how to shoot effectively. All handguns have iron sights; few have 2000mw Laser Pointer . Use lasers judiciously, and practice without them often.
This is a good and in many cases educational application, and one where a laser pointer of above Class 2 can be an advantage. Most experts would agree that a green laser pointer will work best and a power level of up to 20 mW would be more than enough for most people with such an application
You see, while it is true that many of the laser pointers currently on the market are NOT within the FDA's 5mW guidelines, the reality is that even a fully legal 5mW green laser pointer is too strong.
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