Abstract: A contact assembly (301,400) for laser surgery may include a contact lens (402) and an optical filter (404). The contact lens (402) may be configured to be positioned in an optical path of therapeutic radiation (310) directed at an eye (100) of a patient. The optical filter (404) may be coupled to an outer surface (402A) of the contact lens (402). The optical filter (404) may be transparent to the therapeutic radiation (310) with a first wavelength and may be opaque to radiation (318) with a second wavelength different than the first wavelength.

Abstract: A contact assembly (301,400) for laser surgery may include a contact lens (402) and an optical filter (404). The contact lens (402) may be configured to be positioned in an optical path of therapeutic radiation (310) directed at an eye (100) of a patient. The optical filter (404) may be coupled to an outer surface (402A) of the contact lens (402). The optical filter (404) may be transparent to the therapeutic radiation (310) with a first wavelength and may be opaque to radiation (318) with a second wavelength different than the first wavelength.

Abstract: Systems and methods for reducing or eliminating corrosion of components of a reactor system, including a supercritical water gasification system, are described. The reactor system may include various system components, such as one or more pre-heaters, heat exchangers and reactor vessels. The system components may be configured to receive a reactor fluid corrosive to an inner surface thereof and to separately receive a protective fluid that has a higher density and is substantially immiscible with the reactor fluid. A rotating element may be configured to generate a rotational force that forces at least a portion of the protective fluid to flow in a layer between the reactor fluid and at least a portion of the inner surface, the layer operating to reduce corrosion by forming a barrier between the reactor fluid and at least a portion of the inner surface.

Abstract: Systems and methods for reducing or eliminating corrosion of components of a reactor system, including a supercritical water gasification system, are described. Corrosion protection layers may be configured to provide a physical barrier between component surfaces and subcritical fluid present in one or more subcritical zones during operation of the reactor system. The corrosion protection layers may include glass and silicon carbide, and may be positioned within the one or more subcritical zones to prevent the subcritical fluid from contacting component surfaces susceptible to corrosion from corrosive ions present in the subcritical fluid.