The discussion revolves around the significance of coherent light in lasers, focusing on the properties of laser beams and their ability to travel long distances without significant divergence.
Some participants have offered insights into the collimation of laser beams due to mirror alignment, while others are seeking further clarification on the relationship between coherence and the behavior of photons in the beam. There is an ongoing exploration of concepts without a clear consensus.
Participants are encouraged to conduct additional research on lasers to deepen their understanding before continuing the discussion. This suggests that some foundational knowledge may be lacking in the conversation.
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?