Abstract: A surface emitting laser device and a method for manufacturing is disclosed. The surface emitting laser device comprises a p-type semiconductor substrate on which are formed a photonic crystal (PC) structure comprising a bulk medium having a first refractive index and an array of scattering centres located within the bulk medium, the scattering centres having a second refractive index different to the first refractive index; and an active layer, optically coupled to the photonic crystal structure. The described surface emitting laser device is found to exhibit lower gain threshold values, improved L-I slope efficiency and higher output powers than that those known in the art which are formed on a p-type semiconductor substrate.

Abstract: Technology is described for picking or placing items within a storage area using an AR headset. One method may include scanning an optical code on a mobile storage cart to determine a position and orientation of the mobile storage cart. Item data may be retrieved for an item to be retrieved from a storage location in the storage area and placed on the mobile storage cart. A first graphical guidance indicator can be provided to guide a user of the AR headset to the storage location of the item to be picked. An optical code on the item may also be scanned. A placement indicator may be displayed and overlaid on a storage bin on the mobile storage cart representing a location where the item is to be placed.

Abstract: Technology is described for scanning an optical code using an augmented reality (AR) headset. The method can include tracking an eye gaze of a user using the AR headset to identify an eye gaze location. A scan area of an optical camera of the AR headset may be set based in part on a gaze area defined around the eye gaze location. Another operation may be detecting a depth of a hand of a user in proximity to an item, using the AR headset. A focus depth of the optical camera may be set based in part on the depth of the hand from the AR headset. An optical code may be scanned from the product item using the optical camera at the focus depth.

Abstract: Technology is described for scanning an optical code using an augmented reality (AR) headset. The method can include tracking an eye gaze of a user using the AR headset to identify an eye gaze location. A scan area of an optical camera of the AR headset may be set based in part on a gaze area defined around the eye gaze location. Another operation may be detecting a depth of a hand of a user in proximity to an item, using the AR headset. A focus depth of the optical camera may be set based in part on the depth of the hand from the AR headset. An optical code may be scanned from the product item using the optical camera at the focus depth.

Abstract: Technology is described for picking or placing items within a storage area using an AR headset. One method may include scanning an optical code on a mobile storage cart to determine a position and orientation of the mobile storage cart. Item data may be retrieved for an item to be retrieved from a storage location in the storage area and placed on the mobile storage cart. A first graphical guidance indicator can be provided to guide a user of the AR headset to the storage location of the item to be picked. An optical code on the item may also be scanned. A placement indicator may be displayed and overlaid on a storage bin on the mobile storage cart representing a location where the item is to be placed.

Abstract: An electrical contact for a semiconductor device, and a method of forming an electrical contact is disclosed. The electrical contact comprises a perimeter area, an aperture located within the perimeter area and one or more electrical tracks extending from the perimeter area into the aperture. The one or more electrical tracks comprise a non-linear shape. The presence of the one or more electrical tracks within the aperture provides a means to remove, or significantly reduce, the problematic effects of current crowding within a semiconductor device in which it is employed. The electrical contacts provide particular application for semiconductor laser devices. When the electrical contact is located on an output surface of the semiconductor laser device, the condition for a diffraction pattern to be imparted onto the emission profile of the output light of the semiconductor laser device is removed, thus improving the overall beam quality of the output light.

Abstract: A laser device has a photonic crystal surface emitting laser (PCSEL) element. At a first lateral side of the PCSEL element, a reflector is arranged to reflect back into the PCSEL element at least a portion of light travelling out of the PCSEL element through the first lateral side of the PCSEL element. Between the first lateral side of the PCSEL element and the reflector there is interposed an electrically controllable light-transmission region configured to control the transmission of light from the PCSEL element to the reflector, based on an electrical input. Also disclosed is a method of operation of a corresponding laser device.

Abstract: A process for treating a bitumen froth comprising bitumen, solids and water to produce a deasphalted oil product is provided comprising optionally diluting the raw bitumen froth with a diluent to form a diluted bitumen froth; separating the raw or diluted bitumen froth into a light bitumen fraction and a heavy bitumen fraction comprising bitumen, fine solids and water; mixing the heavy bitumen fraction with a first solvent to form a solvent/bitumen mixture; and introducing the solvent/bitumen mixture into a first extraction vessel operating at a temperature and a pressure such that the solvent is at or near supercritical conditions to form a heavy phase comprising asphaltenes, solids and water and a light phase comprising deasphalted oil.

Abstract: A laser device has a photonic crystal surface emitting laser (PCSEL) element. At a first lateral side of the PCSEL element, a reflector is arranged to reflect back into the PCSEL element at least a portion of light travelling out of the PCSEL element through the first lateral side of the PCSEL element. Between the first lateral side of the PCSEL element and the reflector there is interposed an electrically controllable light-transmission region configured to control the transmission of light from the PCSEL element to the reflector, based on an electrical input. Also disclosed is a method of operation of a corresponding laser device.

Abstract: A process for treating a bitumen froth comprising bitumen, solids and water to produce a deasphalted oil product is provided comprising optionally diluting the raw bitumen froth with a diluent to form a diluted bitumen froth; separating the raw or diluted bitumen froth into a light bitumen fraction and a heavy bitumen fraction comprising bitumen, fine solids and water; mixing the heavy bitumen fraction with a first solvent to form a solvent/bitumen mixture; and introducing the solvent/bitumen mixture into a first extraction vessel operating at a temperature and a pressure such that the solvent is at or near supercritical conditions to form a heavy phase comprising asphaltenes, solids and water and a light phase comprising deasphalted oil.

Abstract: A system for analyzing, manipulating, and recording data associated with a microtiter plate is provided. The system provides a touch screen element provided proximal to the microtiter plate such that data pertaining to events and conditions observed within one or more wells of the microtiter plate may be easily and accurately recorded. Data display, storage, and manipulation features are also provided.

Abstract: A system for analyzing, manipulating, and recording data associated with a microtiter plate is provided. The system provides a touch screen element provided proximal to the microtiter plate such that data pertaining to events and conditions observed within one or more wells of the microtiter plate may be easily and accurately recorded. Data display, storage, and manipulation features are also provided.

Abstract: A filter assembly (100) may comprise a filter cartridge (102) and a filter housing (101) which may include a cylindrical support (121) and a removable portion (110).