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Accurate Microscopical Determination of Optical Properties
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aberration constant adjusted analyser angle angular aperture aperture aberration arterioles astigmatic axial birefringence blood cell velocity blood vessel calculated carbon coefficients condenser condenser-objective contrast convergence cooling chamber corrected corrector crystal curve density determined diameter diaphragm diffraction doublet electron beam electron microscope electrostatic electrostatic lens EOLM equation error exposure eyepiece field film focal length Glaser glass block grains graticule illumination image plane instrument interference microscope irradiation light linear lattices liquid lock-in amplifier magnetic lenses magnification match maximum measured method micro micrographs mm/sec moving numerical aperture objective objective lens observed obtained octopole optical axis optical properties optical rotation orientation parallel particles phase modulation phase retardation photomultiplier plate points radiating incoherently polarizing possible potential prism quadrupole range rays refractive index refractometer resolution limit resolving power round lens Septier shown in Fig specimen speed spherical aberration spot streak images surface symmetry temperature trajectories tube wavelength