Ju l 2 01 7 Dynamics of the superconducting order parameter through ultrafast normal-to-superconducting phase transition in Bi 2 Sr 2 CaCu 2 O 8 + δ from multi-pulse polarization-resolved transient optical reflectivity

I. Madan, 2 V.V. Baranov, Y. Toda, M. Oda, T. Kurosawa, V.V. Kabanov, T. Mertelj, 5, ∗ and D. Mihailovic 5 Complex Matter Department, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia Laboratory for Ultrafast Microscopy and Electron Scattering, IPHYS, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland Department of Applied Physics, Hokkaido University, Sapporo 060-8628, Japan Department of Physics, Hokkaido University, Sapporo 060-0810, Japan Center of Excellence on Nanoscience and Nanotechnology Nanocenter (CENN Nanocenter), Jamova 39, 1000 Ljubljana, Slovenia