Abstract: A handheld LIBS device and method includes a laser assembly producing two pulsed single spatial mode output beams and a focusing optic which combines the two pulsed single spatial mode output beams at a focal point at a sample. The laser assembly includes a laser assembly housing with an output coupler window for the two pulsed single spatial mode output beams, a gain medium in the laser assembly housing between the output coupler window and an adjustable prism mount in the laser assembly housing holding a prism configured to establish two light paths through the gain medium, a source in the laser assembly housing providing pump energy to the gain medium, and a Q-switch positioned between the prism and the gain medium.

Abstract: A shower chair with a mobile chair frame, a liquid delivery system with a water intake connection, and a manual control system permitting control of the liquid delivery system. An input control valve is selectively operable to allow water flow through first or second output conduits to a directional valve or through a third output conduit to establish a water temperature test mode. By positioning the input control valve, a mixing mode can be established wherein flowable material is drawn from a vessel and into a Venturi and a rinsing mode can be established where water bypasses the Venturi. By selective positioning of the directional valve, water or water mixed with flowable material can be dispensed from a shower head outlet along a first fluidic route, from anterior and posterior bidet outlets along a second fluidic route, or from both the shower head outlet and the bidet outlets.

Abstract: Opto-mechanical scanning of a scene of interest is provided by use of an unequal four-bar linkage assembly which simultaneously rotates and translates a scan mirror, thereby minimizing the size of the optical window, the size of the scan mirror, and the working space required by the scan mirror.