I'm a grad student in utah working on a large lidar system used to make measurements in the middle atmosphere. We use a q-switched nd:yag laser that generates about 18 watts of green light in a 7ns pulse at 30 hz. So there are high powered lasers pointed into the night sky.
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I'm a grad student in utah working on a large lidar system used to make measurements in the middle atmosphere. We use a q-switched nd:yag laser that generates about 18 watts of green light in a 7ns pulse at 30 hz. So there are high powered lasers pointed into the night sky.