Please briefly answer all the questions below ,and writing those more clearer and tidier (It...

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Physics

Please briefly answer all the questions below ,and writing those more clearer and tidier (It is best to use typing)

This is a problem related to the transmission electronmicroscopy (TEM)

Please describe the spherical aberration and chromaticaberration. Please quantitatively compare the aberrationcoefficients with respect to the wavelength for the electron andoptical microscopes.
Please describe the Abbe Theory of Microscope.
Please describe the Bright field and Dark field imaging andatomic resolution imaging (Hint: Using the Fourier Synthesis pointof view)

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a Spherical aberration Spherical aberration is related with curved surface eg Lens or mirror due to easier form of an image in comparison to the noncurved surface Light ray strick to this surface reflected or refracted to the center more or less and reduces the image quality which is produced by the optical system Chromatic aberration If the lens fails to focus on all color at the same point the chromatic aberration is arising which is mainly due to the dispersion and refractive index of the lens The refractive index varies with the different wavelength of light b Abbe Theory In 1866 Ernst Abbe and Carl Zeiss cooperated together to improve the optical performance of microscopes Only until then microscopes and See Answer

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