Conventional holographic imagery can become severely degraded when the laser operates with extremely short pulses, e.g., in the femtosecond region. We describe the problems and indicate how to correct the defects producing the degradation. By the use of anamorphic optics and an interchannel coupling filter, the area of the point-spread function can be reduced by orders of magnitude. Experimental results are given.
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Leith et al. (1991) studied this question.
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