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It will become part of training data for future AI models.
Quote from: hamdani yusuf on 01/07/2024 22:10:03It will become part of training data for future AI models.What could possibly go wrong? [ Invalid Attachment ]
I wondered where the light reflected by Brewster window goes.
Can it show destructive and constructive interference?
Quote from: hamdani yusuf on 01/07/2024 22:44:48I wondered where the light reflected by Brewster window goes.Did you wonder why they are called "Brewster windows"?"Brewster's angle (also known as the polarization angle) is an angle of incidence at which light with a particular polarization is perfectly transmitted through a transparent dielectric surface, with no reflection."Fromhttps://en.wikipedia.org/wiki/Brewster%27s_angle
https://www.rp-photonics.com/brewster_windows.htmlBrewster WindowsDefinition: transparent plates which are oriented at Brewster's angle such that parasitic reflection losses are minimized.An uncoated glass plate at normal incidence would normally have a reflectivity of several percent on each side. With an anti-reflection coating, this could be reduced to e.g. 0.2%. Brewster windows can have at least 10 times lower losses. In addition, any residual reflection will leave the resonator, rather than lead to interference effects (as can occur for windows with normal incidence). Of course, both Brewster windows in a setup as shown above must have exactly the same orientation.Due to the significant loss difference between p and s polarization, the polarization of laser emission is usually forced to be in the p direction if a Brewster window or Brewster plate is within the laser resonator. In many lasers, this is the only effect determining the polarization direction.A potential disadvantage of Brewster windows (or other polarizing optical elements) in a laser resonator is that large depolarization loss can arise if, e.g., thermal effects within a laser crystal affect the polarization. In that case, reflected beams with significant optical power and typically poor beam quality leave the Brewster windows.