A microscope has a objective of numerical aperture (object side) and is used…

PHYSICS · Multi-part · Fermi University Physics · Optics & Photonics · Fourier optics and image formation · Fourier optics and image formation

What an Instrument Can See, Ch The transfer function of an imaging system

Problem

A microscope has a 100×100\times objective of numerical aperture NA=1.20\mathrm{NA} = 1.20 (object side) and is used incoherently at λ=500 nm\lambda = 500\ \mathrm{nm}. ((a)) Compute the incoherent cutoff frequency at the object. ((b)) State the largest camera pixel pitch that avoids aliasing, given the Nyquist spacing at the object and the 100×100\times magnification to the camera.

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