  A new low photon energy regime of angle resolved photoemission spectroscopy
is accessed with lasers and used to study the superconductor
Bi2Sr2CaCu2O8+delta. The low energy increases bulk sensitivity, reduces
background, and improves resolution. With this we observe spectral peaks which
are sharp on the scale of their binding energy - the clearest evidence yet for
quasiparticles in the normal state. Crucial aspects of the data such as the
dispersion, superconducting gaps, and the bosonic coupling kink and associated
weight transfer are robust to a possible breakdown of the sudden approximation.
