Do laser machines or apparatus that make instant holes in walls and doors really exist?

Question

I have seen them on Movies but i wonder if they really exist? At least they are not in the market!

Answer 1

Yeah they exist allright.
But they are damn expensive.
Military and nuclear research institutes have powerful lasers.

The highest power industrial laser diodes, with power up to 10 kW, are used in industry for cutting and welding. External-cavity semiconductor lasers have a semiconductor active medium in a larger cavity. These devices can generate high power outputs with good beam quality, wavelength-tunable narrow-linewidth radiation, or ultrashort laser pulses

A good example from wikipedia:

Science fiction films special effects often depict laser beams propagating at only a few metres per second—slowly enough to see their progress, in a manner reminiscent of conventional tracer ammunition—whereas in reality a laser beam travels at the speed of light and would seem to appear instantly to the naked eye from start to end.

Several of these misconceptions can be found in the James Bond film Goldfinger, the first film to feature a laser. In one of the most famous scenes in the Bond films, Bond, played by Sean Connery, faces a laser beam approaching his groin while melting the solid gold table to which he is strapped. The director Guy Hamilton found that a real laser beam would not show up on camera so it was added as an optical effect. The melting effect on the table was achieved by a man underneath the table holding an oxyacetylene torch, while a real laser would have produced a fairly heat-free and silent cut.

Answer 2

yes, i saw news on tv that us military are conducting laser shooting experiment to prevent missile or air craft attack ( using laser to heat the target)