Transcription of Lecture 5 - UIUC
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Lecture 5 - UIUC
Lecture 5, p 1 =2 = c0II0 Sum2I00 = c/3yyLecture 5:Applications of Interference and DiffractionLecture 5, p 2 TodayCircular diffraction Angular resolution (Rayleigh s criterion) Minimum spot sizeInterferometers Michelson ApplicationsLecture 5, p 3 The size of the spot is determined by the diameter, D, of the aperture, and wavelength, , of the incident by a circular aperture is similar to single)slit diffraction . But note the difference:Image plane00II0 o DImage planePoint objecta Circular apertureThe Airy disk.
Diffraction-limited Optics Diffraction has important implications for optical instruments Even for perfectly designed optics the image of a point source will be a little blurry -the circular aperture produces diffraction.
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