Abstract: A system for forming a laser-sustained plasma includes a gas containment element, an illumination source configured to generate pump illumination, and a collector element configured to focus the pump illumination from the pumping source into the volume of the gas mixture in order to generate a plasma within the volume of the gas mixture that emits broadband radiation. The gas containment element may be configured to contain a volume of a gas mixture including a first gas component and a second gas component. The second gas component suppresses at least one of a portion of the broadband radiation associated with the first gas component or radiation by one or more excimers associated with the first gas component from a spectrum of radiation exiting the gas mixture.

Abstract: A system for forming a laser-sustained plasma includes a gas containment element, an illumination source configured to generate pump illumination, and a collector element configured to focus the pump illumination from the pumping source into the volume of the gas mixture in order to generate a plasma within the volume of the gas mixture that emits broadband radiation. The gas containment element may be configured to contain a volume of a gas mixture including a first gas component and a second gas component. The second gas component suppresses at least one of a portion of the broadband radiation associated with the first gas component or radiation by one or more excimers associated with the first gas component from a spectrum of radiation exiting the gas mixture.

Abstract: A method and system for making global variables NUMA-aware by identifying a first and a second global variable; determining a quantity of NUMA groups of a computing device; partitioning, based on the quantity of NUMA groups, the first global variable into a first global variable array of first global variable array elements; storing each first global variable array element in a different cache line of a first plurality of cache lines of a first cache associated with a first NUMA group of the NUMA groups; partitioning, based on the quantity of NUMA groups, the second global variable into a second global variable array of second global variable array elements; and storing each second global variable array element in a different cache line of a second plurality of cache lines of a second cache associated with a second NUMA group of NUMA groups.

Abstract: A method and system for making global variables NUMA-aware by identifying a first and a second global variable; determining a quantity of NUMA groups of a computing device; partitioning, based on the quantity of NUMA groups, the first global variable into a first global variable array of first global variable array elements; storing each first global variable array element in a different cache line of a first plurality of cache lines of a first cache associated with a first NUMA group of the NUMA groups; partitioning, based on the quantity of NUMA groups, the second global variable into a second global variable array of second global variable array elements; and storing each second global variable array element in a different cache line of a second plurality of cache lines of a second cache associated with a second NUMA group of NUMA groups.

Abstract: A system for forming a laser-sustained plasma includes a gas containment element, an illumination source configured to generate pump illumination, and a collector element. The gas containment element is configured to contain a volume of a gas mixture. The collector element is configured to focus the pump illumination from the pumping source into the volume of the gas mixture contained within the gas containment element in order to generate a plasma within the volume of the gas mixture that emits broadband radiation. The gas mixture filters one or more selected wavelengths of radiation emitted by the plasma.

Abstract: An illumination pump source is disclosed. The illumination pump source includes a set of power sources configured to generate a set of laser beams, with at least some of the set of laser beams configured to include illumination having different wavelengths. The illumination pump source also includes an optical fiber. The illumination pump source also includes one or more optical elements, the one or more optical elements configured to couple the illumination from at least some of the laser beams to one or more regions of the optical fiber.

Abstract: A laser-sustained plasma light source includes a plasma cell configured to contain a volume of gas. The plasma cell is configured to receive illumination from a pump laser in order to generate plasma within the volume of gas. The plasma emits broadband radiation. The plasma cell includes one or more transparent portions being at least partially transparent to at least a portion of illumination from the pump laser and at least a portion of the broadband radiation emitted by the plasma. The plasma cell also includes one or more nanostructured layers disposed on one or more surfaces of the one or more transparent portions of the plasma cell. The one or more nanostructure layers form a region of refractive index control across an interface between the one or more transparent portions of the plasma cell and an atmosphere.

Abstract: A system for forming a laser-sustained plasma includes a gas containment element, an illumination source configured to generate pump illumination, and a collector element. The gas containment element is configured to contain a volume of a gas mixture. The collector element is configured to focus the pump illumination from the pumping source into the volume of the gas mixture contained within the gas containment element in order to generate a plasma within the volume of the gas mixture that emits broadband radiation. The gas mixture filters one or more selected wavelengths of radiation emitted by the plasma.

Abstract: Systems and methods for providing laser sustained plasma light sources are disclosed. Different from conventional laser sustained plasma light sources where one fiber size and one wavelength combination is used in the lamphouse to generate light for different bands and pixel sizes, switchable fiber sizes and wavelength combinations are provided for optimal power output in different wavelength bands and pixel sizes. More specifically, switchable fiber configurations are provided where larger fibers with higher pump powers are used for bigger pixel sizes and higher wavelength bands while smaller fibers are used for smaller pixel size and shorter wavelength bands. Additionally and/or alternatively, pumping schemes are provided where pump wavelengths close to the absorption peak of the gas fill are used for bigger pixel sizes while pump wavelengths away from the gas fill absorption peak are used for smaller pixel sizes.

Abstract: A system for generating high power broadband light includes multiple light-sustained plasma light sources. Each one of the light-sustained sources includes a pumping source, a gas containment structure for containing gas and configured to receive pumping illumination from the pumping source and a parabolic reflector element arranged to collect at least a portion of the broadband radiation emitted by the generated plasma and form a collimated broadband radiation output. The system also including a set of optical elements configured to combine the collimated broadband outputs from the parabolic reflector elements of the multiple light-sustained plasma light sources into an aggregated broadband beam.

Abstract: NUMA-aware reader-writer locks may leverage lock cohorting techniques and may support reader re-entrancy. They may implement a delayed sleep mechanism by which a thread that fails to acquire a lock spins briefly, hoping the lock will be released soon, before blocking on the lock (sleeping). The maximum spin time may be based on the time needed to put a thread to sleep and wake it up. If a lock holder is not executing on a processor, an acquiring thread may go to sleep without first spinning. Threads put in a sleep state may be placed on a turnstile sleep queue associated with the lock. When a writer thread that holds the lock exits a critical section protected by the lock, it may wake all sleeping reader threads and one sleeping writer thread. Reader threads may increment and decrement node-local reader counters upon arrival and departure, respectively.

Abstract: A laser-sustained plasma light source includes a plasma cell configured to contain a volume of gas. The plasma cell is configured to receive illumination from a pump laser in order to generate plasma within the volume of gas. The plasma emits broadband radiation. The plasma cell includes one or more transparent portions being at least partially transparent to at least a portion of illumination from the pump laser and at least a portion of the broadband radiation emitted by the plasma. The plasma cell also includes one or more nanostructured layers disposed on one or more surfaces of the one or more transparent portions of the plasma cell. The one or more nanostructure layers form a region of refractive index control across an interface between the one or more transparent portions of the plasma cell and an atmosphere.

Abstract: Systems and methods for providing laser sustained plasma light sources are disclosed. Different from conventional laser sustained plasma light sources where one fiber size and one wavelength combination is used in the lamphouse to generate light for different bands and pixel sizes, switchable fiber sizes and wavelength combinations are provided for optimal power output in different wavelength bands and pixel sizes. More specifically, switchable fiber configurations are provided where larger fibers with higher pump powers are used for bigger pixel sizes and higher wavelength bands while smaller fibers are used for smaller pixel size and shorter wavelength bands. Additionally and/or alternatively, pumping schemes are provided where pump wavelengths close to the absorption peak of the gas fill are used for bigger pixel sizes while pump wavelengths away from the gas fill absorption peak are used for smaller pixel sizes.

Abstract: An optical coherence tomography scanning system includes a lens divided into two halves: one optimized to achieve normal incidence angles on the posterior surface of the eye's lens, the other optimized for the anterior surface of the eye's lens.

Abstract: An optical coherence tomography scanning system includes a lens divided into two halves: one optimized to achieve normal incidence angles on the posterior surface of the eye's lens, the other optimized for the anterior surface of the eye's lens.