Conherence time measurement of picosecond pulses using reverse saturable absorption in lead phthalocyanine

摘要

The coherence time measurement of picosecond pulses using conunter-run- ning pump probe technique in reverse saturable absorption material of lead phthalocya- nine were studied. The coherence time of 23ps, 532nm Nd: YAG laser pulses is 9ps. The experimental results and theoretical analysis show that two beam coherent effect in- creases the reverse saturable absorption of lead phthalocyanine.