Abstract: Diffractive optical structures, lenses, waveplates, devices, systems, and methods, which have the same effect on light regardless of the polarization state of the light, utilizing systems of polarization discriminator diffractive waveplate optics and differential polarization converters with special arrangements that do not require introducing spatial separation between the layers.

Abstract: Diffractive optical structures, lenses, waveplates, devices, systems, and methods, which have the same effect on light regardless of the polarization state of the light, utilizing systems of polarization discriminator diffractive waveplate optics and differential polarization converters with special arrangements that do not require introducing spatial separation between the layers.

Abstract: Disclosed techniques relate to scheduling sets of graphics work using queues. In some embodiments, tracking circuitry implements entries for multiple tracking slots for a graphics processor. Queue access circuitry may access a data structure in memory that specifies multiple queues, where each queue enqueues control information for multiple sets of graphics work. Queue select circuitry may select sets of graphics work from the data structure based on one or more selection parameters and store control information for selected sets of graphics work in tracking slots of the tracking slot circuitry. Distribution circuitry may assign portions of respective sets of graphics work from the tracking slots to graphics processor circuitry for execution.

Abstract: Diffractive optical structures, lenses, waveplates, devices, systems, and methods, which have the same effect on light regardless of the polarization state of the light, utilizing systems of polarization discriminator diffractive waveplate optics and differential polarization converters with special arrangements that do not require introducing spatial separation between the layers.

Abstract: One disclosed embodiment includes a method for memory management. The method includes receiving a first request to clear one or more entries of a translation lookaside buffer (TLB), receiving a second request to clear one or more entries of the TLB, bundling the first request with the second request, determining that a processor associated with the TLB transitioned to an inactive mode, and dropping the bundled first and second requests based on the determination.

Abstract: One disclosed embodiment includes a method for memory management. The method includes receiving a first request to clear one or more entries of a translation lookaside buffer (TLB), receiving a second request to clear one or more entries of the TLB, bundling the first request with the second request, determining that a processor associated with the TLB transitioned to an inactive mode, and dropping the bundled first and second requests based on the determination.

Abstract: Optical beam steering and focusing systems, devices, and methods that utilize diffractive waveplates are improved to produce high efficiency at large beam deflection angles, particularly around normal incidence, by diffractive waveplate architectures comprising a special combination of liquid crystal polymer diffractive waveplate both layers with internal twisted structure and at a layer with uniform structure.

Abstract: Methods, systems and devices for diffractive waveplate lens and mirror systems allowing electronically pointing and focusing light at different focal planes. The system can be incorporated into a variety of optical schemes for providing electrical control of transmission. In another embodiment, the system comprises diffractive waveplates of different functionality to provide a system for controlling not only focusing but other propagation properties of light including direction, phase profile, and intensity distribution. The diffractive waveplate lens and mirror systems are applicable to optical communication systems.

Abstract: Diffractive optical structures, lenses, waveplates, devices, systems and methods, which have the same effect on light regardless of temperature within an operating temperature range. Temperature-compensated switchable diffractive waveplate systems, in which the diffraction efficiency can be maximized for the operating wavelength and temperature by means of adjustment of the electric potential across the liquid crystal or other anisotropic material in the diffracting state of the diffractive state, based on prior measurements of diffraction efficiency as a function of wavelength and temperature. The switchable diffractive waveplates can be a switchable diffractive waveplate diffuser, a switchable cycloidal diffractive waveplate, and a switchable diffractive waveplate lens. An electronic controller can apply an electric potential to the switchable diffractive waveplate.

Abstract: One disclosed embodiment includes a method for memory management. The method includes receiving a first request to clear one or more entries of a translation lookaside buffer (TLB), receiving a second request to clear one or more entries of the TLB, bundling the first request with the second request, determining that a processor associated with the TLB transitioned to an inactive mode, and dropping the bundled first and second requests based on the determination.

Abstract: Diffractive optical structures, lens, waveplates, systems and methods of combinations of CDWs (cycloidal diffractive waveplates) and PVGs (polarization volume gratings) that result in high efficiency polarization-insensitive diffraction. Although our modelling and experiments were performed for structures with optical axis orientation periodic along one of the Cartesian coordinates parallel to the plane of the structure, the results are applicable to more complex structures such as diffractive waveplate lenses. The focusing performance of such structures can be predicted by considering the structure to be locally periodic along one axis.

Abstract: Methods of fabricating optical lenses and mirrors, systems and composite structures based on diffractive waveplates, and fields of application of said lenses and mirrors that include imaging systems, astronomy, displays, polarizers, optical communication and other areas of laser and photonics technology. Diffractive lenses and mirrors of shorter focal length and larger size, with more closely spaced grating lines, and with more exacting tolerances on the optical characteristics, can be fabricated than could be fabricated by previous methods.

Abstract: Diffractive optical structures, lenses, waveplates, devices, systems and methods, which have the same effect on light regardless of temperature within an operating temperature range. Temperature-compensated switchable diffractive waveplate systems, in which the diffraction efficiency can be maximized for the operating wavelength and temperature by means of adjustment of the electric potential across the liquid crystal or other anisotropic material in the diffracting state of the diffractive state, based on prior measurements of diffraction efficiency as a function of wavelength and temperature. The switchable diffractive waveplates can be a switchable diffractive waveplate diffuser, a switchable cycloidal diffractive waveplate, and a switchable diffractive waveplate lens. An electronic controller can apply an electric potential to the switchable diffractive waveplate.

Abstract: One disclosed embodiment includes a method for memory management. The method includes receiving a first request to clear one or more entries of a translation lookaside buffer (TLB), receiving a second request to clear one or more entries of the TLB, bundling the first request with the second request, determining that a processor associated with the TLB transitioned to an inactive mode, and dropping the bundled first and second requests based on the determination.

Abstract: Modulated circular polarization viewing systems and methods that cause temporal modulation of color, brightness, or both, of objects treated with materials having differential polarization reflectance.

Abstract: Methods, systems and devices for diffractive waveplate lens and mirror systems allowing electronically pointing and focusing light at different focal planes. The system can be incorporated into a variety of optical schemes for providing electrical control of transmission. In another embodiment, the system comprises diffractive waveplates of different functionality to provide a system for controlling not only focusing but other propagation properties of light including direction, phase profile, and intensity distribution. The diffractive waveplate lens and mirror systems are applicable to optical communication systems.

Abstract: Optical beam steering and focusing systems, devices, and methods that utilize diffractive waveplates are improved to produce high efficiency at large beam deflection angles, particularly around normal incidence, by diffractive waveplate architectures comprising a special combination of liquid crystal polymer diffractive waveplate both layers with internal twisted structure and at a layer with uniform structure.

Abstract: Methods, systems and devices for diffractive waveplate lens and mirror systems allowing electronically focusing light at different focal planes. The system can be incorporated into a variety of optical schemes for providing electrical control of transmission. In another embodiment, the system comprises diffractive waveplates of different functionality to provide a system for controlling not only focusing but other propagation properties of light including direction, phase profile, and intensity distribution.

Abstract: Methods of fabricating optical lenses and mirrors, systems and composite structures based on diffractive waveplates, and fields of application of said lenses and mirrors that include imaging systems, astronomy, displays, polarizers, optical communication and other areas of laser and photonics technology. Diffractive lenses and mirrors of shorter focal length and larger size, with more closely spaced grating lines, and with more exacting tolerances on the optical characteristics, can be fabricated than could be fabricated by previous methods.

Abstract: Methods, systems and devices for diffractive waveplate lens and mirror systems allowing electronically focusing light at different focal planes. The system can be incorporated into a variety of optical schemes for providing electrical control of transmission. In another embodiment, the system comprises diffractive waveplates of different functionality to provide a system for controlling not only focusing but other propagation properties of light including direction, phase profile, and intensity distribution.