If we can send two electromagnetic waves -180 degree out of phase- in same direction, then the interaction of this wave with air molecules will be less due to the low intensity of the combination. So, we can reduce the distortion for the transmitted signals. Is this conclusion right?
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$\begingroup$ You should specify a bit more clearly what you call "interaction". As it is, the only thing I understand is this context is the optical index, which depends on the frequency, but has a small effect on the celerity and none on the magnitude of both electric and magnetic fields. $\endgroup$– MiyaseCommented Jun 27, 2022 at 18:18
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$\begingroup$ I mean the spatial inhomogeneity of the air refractive index. $\endgroup$– Wael KhatibCommented Jun 27, 2022 at 19:30
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4$\begingroup$ Sending two waves in the same direction that are 180 degrees out of phase is the same as sending one lower amplitude wave. $\endgroup$– MattCommented Jun 27, 2022 at 20:35
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1$\begingroup$ A common example of this is antireflection coatings $\endgroup$– mmesser314Commented Jun 27, 2022 at 21:27
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1$\begingroup$ I would say your conclusion is wrong. But mainly because there are a lot of problems with your argument. Lets assume that you "send" 2 EM waves with the same wavelength but make them 180° out of phase and they both have the same amplitude. You can only do this with an interferometer, and you will not send anything in that direction because you will divert all the power to the other output arm of your interferometer. ie there is no power in the arm you want to use, its all in the other one. $\endgroup$– José AndradeCommented Jun 28, 2022 at 15:51
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