Determination of temporal correlation of ultrafast laser pulses using phase conjugation |
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Authors: | J Buchert R Dorsinville P Delfyett S Krimchansky RR Alfano |
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Institution: | Physics Department and Electrical Engineering Department, The City College of New York, New York, NY 10031, USA |
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Abstract: | A new time domain single shot conjugation autocorrelator is described. Three beams derived from the same initial laser pulse interact in a nonlinear medium to produce a backward signal wave in a 90° phase conjugate geometry. The pulse duration is determined from the spatial width of the phase conjugate beam emerging from the interaction region. Pulse duration measurements of pulses selected from a YAG laser train show that shorter pulses are generated toward the tail of the pulse train. |
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