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  1. What is a wavefront? - Physics Stack Exchange

    0 For this picture Anna wrote: "Incandescent light is incoherent because it comes from many sources and the same is true for sunlight. By passing the light through the one slit he created a …

  2. On the definition of ray (optics) and wavefront of light

    Aug 6, 2022 · Wikipedia defines a ray as "[...] a curve that is perpendicular to the wavefronts of the actual light, and that points in the direction of energy flow". But the usual meaning …

  3. How to determine the wavefront - Physics Stack Exchange

    Mar 13, 2018 · The ' wavefront ' is the furthest extent of the wave, which is governed by causality. The ' wavefield ' includes what follows after the ' wavefront '. Google Huygens Principle to get …

  4. Modelling the Gaussian Beam Envelope - Physics Stack Exchange

    Mar 15, 2025 · That is, you should expect the radius of curvature of the wavefront, $R (z)$, to change discontinuously at $z = z_ {lens}$. The beam radius, $\omega (z)$, should become a …

  5. Wavefront of concentric Water Waves - Physics Stack Exchange

    Mar 28, 2024 · What kind of wavefront does a water wave (ripples in water) have? I'm confused since a wavefront is defined to be normal to the direction of wave propagation and joining all …

  6. optics - What exactly is the physical quantity referred to as 'wave ...

    Mar 30, 2021 · The wavefront is now a plane that connects points that are in phase. As before, this is a plane wave, with parallel wavefronts moving from left to right along the positive z-axis. …

  7. wavefronts and wave - Physics Stack Exchange

    Jan 17, 2018 · Wavefront: A wavefront is a surface where all of the particles are vibrating in the same phase. Wave: The disturbance which transfers energy through matter in space.

  8. Why doesn't a backward wave exist? (Huygens principle)

    Apr 25, 2020 · Since every point on a wavefront act as a source of secondary wave (wavelets) then why do we get only forward wavefront not backward. Huygens principal says that …

  9. Why should the light source be bigger in division of amplitude …

    Jun 24, 2020 · Wavefront division can be accomplished by a pair of mirrors, each placed in a different half of a spread-out beam. Amplitude division is accomplished by passing a beam …

  10. Summation theorem for primary (Seidel) aberrations

    Oct 16, 2024 · I am trying to derive the summation theorem for primary aberrations, following Welford's classic book on optical aberration theory (readable at https://www.scribd.com ...