Abstract: A nozzle apparatus for producing aerosol from a substance includes a delivery line having an inlet for receiving the substance at a first pressure. A nozzle is connected to the delivery line for receiving the substance from the delivery line. The nozzle has at least one exit opening which allows passing of the substance therethrough for expanding the substance from the first pressure to a second pressure which is lower than the first pressure for solidifying the substance and producing aerosol. Condensation preventing means is provided for preventing condensation from forming on the delivery line and/or on the nozzle.

Abstract: An apparatus and method for cleaving GaAs laser bars from a cell utilizes a first jaw applied to one end of a laser bar to propagate a cleavage and a second jaw applied to an opposite end which provides a biasing force that assures separation of the bar from the cell along the same crystallographic plane. The apparatus may be used in an ultra-high vacuum environment and allows handling of the bars without contacting the vital areas of the top surfaces or facet faces. The apparatus precisely locates bars after cleavage so that they may be further processed.