The National Institute of Standards and Technology (NIST) is seeking information from sources that may be capable of providing a Noventa 532 nm single frequency laser for a Brillouin Light Scattering Spectrometer. The laser should have specific technical specifications, such as an output power of 250 mW at 532 nm, and should be able to demonstrate that the higher order modes within 30 GHz of the fundamental mode are suppressed by at least 95dB compared to the fundamental mode. The laser should also have a power stability better than 0.2% rms over more than 100 hours, and should not require cooling by water or fan(s). • The laser should be a diode pump solid state (DPSS) laser with an M2 value better than 1.1. • The laser should have a beam diameter between 1.5 mm and 1.9 mm, and a beam divergence smaller than 0.5 mrad. • The laser should have RMS noise from 10 Hz – 100 MHz equal or less than 1.2%. • The polarization of the laser beam should be linear with a ratio higher than 100:1. • The laser beam output should be at a height of 41 mm or less, and the length of the laser should be less than 14.5”. • The width of the laser should be less than 5.6”, and the laser should fit onto a 5.6” wide platform with the laser output in the center of the platform. • The laser should include all necessary cables, hardware, and power supplies, with power supplies being US standard 110 V at 60 Hz. • All components should be new, and used or refurbished systems will not be considered.