Derivation and measurement of the reversible temporal lengthening of femtosecond optical pulses for the case of a four-prism sequence.
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An expression is derived for the reversible lengthening of optical pulse durations from the order of 50 fsec to the order of 500 fsec by a four-prism sequence and focusing elements. This temporal lengthening is caused by spatial dispersion of the different frequency components transverse to the direction of propagation at the symmetry plane of the prism sequence. Experimental measurements of the pulse lengthening agree well with calculated values.
author list (cited authors)
Schehrer, K. L., Fork, R. L., Avramopoulos, H., & Fry, E. S.