Spectra-Physics, a division of Newport Corp., has enhanced its Excelsior family of diode-pumped solid-state and direct diode lasers with the release of low-power, continuous-wave models at 375, 405, 440, 635 and 785 nm. It also has expanded its 532-nm offering to include 50-mW multimode and 200-mW single-frequency versions. The lasers are suitable for use in flow cytometry, DNA sequencing, confocal microscopy, quantum dot pumping, and computer-to-plate and DVD mastering. The company says that they offer a small footprint, good beam quality and low optical noise. The stand-alone devices each feature an active light loop for output power stability over a broad range of temperatures.