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(Color online) Tomographic phase microscope. GM, galvanometer scanning mirror; L1, lens, focal length f =250 mm; BF, back focal plane of condenser lens; C, condenser lens; OL, objective lens; L2, lens, 200 mm; AOMs, acousto-optic modulators. The frequency-shifted reference laser beam is shown in blue online. The diagram (a) describes the phase projection geometry, with θ the illumination angle.
