There is a strong demand for deep-UV lasers for applications such as Lidar remote detection, non-line-of sight communication, chem-bio sensing, 3D printing, etc. This spectral range is currently covered by gas lasers or lasers based on frequency conversion, which are bulky, inefficient, and inflexible in wavelength. Laser diodes should provide an alternative solution, but their implementation is held back by the difficulties to fabricate highly-conductive p-AlGaN cladding layers. In this project, we will develop a new compact UV-laser technology based on the excitation of AlGaN nanostructures by an electron beam from a carbon nanotube cathode. We target Peltier-cooled quasi-continuous-wave devices at 350 nm and 265 nm, with an output power > 500 mW. The choice of wavelengths aims at a direct comparison with the Nd-YAG technology. However, the operation principle of UVLASE allows selecting the emission wavelength by design, without degradation of the efficiency in the 350-250 nm range.