The coherence of photons produced by stimulated emissions in lasers is crucial for maintaining a highly collimated beam, which minimizes divergence and allows the laser to travel great distances. The perpendicular arrangement of mirrors within the laser cavity contributes to this collimation, ensuring that the beam remains focused over long distances. This property of coherence results in all photons in the front of the beam striking a surface simultaneously, enhancing the laser's effectiveness in applications requiring precision.
PREREQUISITESPhysicists, optical engineers, and anyone interested in the principles of laser technology and its applications in precision tasks.
Jye said:I understand that stimulated emissions produce coherent photons. What happens as a result of their coherence? My guess is that the laser beam does not spread out as much allowing it to travel further. Also, what is the property of a laser that allows the beam to travel great distances?