The energy of the photon is calculated using E=hv, where h is the Planck constant and v is the frequency. It can be seen that the higher the frequency, the higher the energy. Can a laser pointer make a laser sword? We know the principle of laser generation, so the question is, can we make a cool laser sword with laser? ? ?
First of all, your common laser looks like this: This kind of laser pointer has an energy of only 1 to 5 milliwatts. It seems not cool enough, but staring at this beam for a few seconds will damage the retina. Therefore, as long as it is not titanium and krypton gold eyes, this kind of laser pointer is still very dangerous to shine on the eyes! What can a higher-energy laser do?
A laser of 5 to 10 milliwatts can be used as a CD drive. A laser of 100 mW can be applied to a high-speed CD-RW recorder. A larger laser of about 250 mW is often applied to a DVD, while a laser of 400 mW can be used to penetrate the CD-ROM box in only 4 seconds. bell.
Normally, the laser beam is completely enclosed, such as in a CD or DVD player, so it will not cause harm to people. Ahem, okay, let’s continue talking about the sword. Since it is a sword, one thing must be done: it can chop, chop, and cut meat. What can a laser do? Lasers can convert light energy into heat. 1-20 watt lasers are generally widely used in the field of microelectronics. When the power reaches 30-100 watts, it can be applied to surgical laser operations, such as whitening.
When the laser power reaches 100-3000 watts, it can be widely used in industrial cutting. (In the movie) Such a small green laser pointer can cut iron nets, so is it about to succeed in making a laser sword that cuts iron like mud? There are also laser cutting machines that cut iron like mud, but their size is comparable to a lathe…