Spectra-Physics Quanta-Ray high-pulse energy Nd:YAG lasers are recognized world wide for their unsurpassed performance, reliability and quality. They incorporate pioneering technologies such as dual-rod oscillators, gold-coated elliptical pump chambers, internal sealed beam paths, and high-damage-threshold optics from Spectra-Physics’ advanced coatings lab - all combine to create the best beam quality and highest energies in the industry.