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Superconductivity in high temperature superconductors is achieved by introducing charge carriers into cuprate insulators containing CuO planes. Perturbation in these CuO planes suppresses superconductivity by strongly affecting the electronic environment. Here we have use photoinduced electronic modification of Cu ion in CuO plane to investigate the effect of local perturbation in BiSrCaCuO. This method has been used to suppress superconducting transition temperature T. We show that our results on photoinduced suppression of superconductivity are consistent with a scenario based on pinning of fluctuating stripes in BiSrCaCuO.

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