Photo-induced increase of the superconducting coherence lengths in oxygen-deficient YBa2Cu3Ox thin films C. Stockinger, G. Heine, W. Markowitsch, W. Lang, R. Adam, R. Sobolewski, R. Rössler, J. D. Pedarnig and D. Bäuerle Eur. Phys. J. B, 18 2 (2000) 227-231 Published online: 15 November 2000 DOI: 10.1007/s100510070052