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High-power and narrow-linewidth laser light is a vital tool for atomicphysics, being used for example in laser cooling and trapping and precisionspectroscopy. Here we produce Watt-level laser radiation at 457.49 nm and460.86 nm of respective relevance for the cooling transitions of cadmium andstrontium atoms. This is achieved via the frequency doubling of a kHz-linewidthvertical-external-cavity surface-emitting laser (VECSEL), which is based on anovel gain chip design enabling lasing at > 2 W in the 915-928 nm region.Following an additional doubling stage, spectroscopy of the $^1S_0\to{}^1P_1$cadmium transition at 228.89 nm is performed on an atomic beam, with all thetransitions from all eight natural isotopes observed in a single continuoussweep of more than 4 GHz in the deep ultraviolet. The absolute value of thetransition frequency of Cd-114 and the isotope shifts relative to thistransition are determined, with values for some of these shifts provided forthe first time

Watt-level blue light for precision spectroscopy, laser cooling and trapping of strontium and cadmium atoms