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Electro-magnetic wave.

However, normal light waves reach our eyes on a variety of different planes.

LASERS put all normal light waves into ONE plane.

The difference with POLARISATION ( e.g. sun glasses). is that the waves in one given plane are allowed to pass. Light waves from all other planes are blocked. That is not all waves are allowed to pass.

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lenpollock

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Infrared wave

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Wiki User

15y ago
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Q: What type of wave is a laser?
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