Abstract: A retroreflective safety device can include a body coupled to a mobile device. A metasurface, disposed on a surface of the body, can include a plurality of nanostructures arranged to retroreflect light that strikes the metasurface. Each nanostructure of the plurality of nanostructures can be smaller than a wavelength of the light. In some examples, a retroreflective safety device can include a body having a first exterior surface and a second exterior surface angled with respect to the first exterior surface. A first metasurface, disposed on the first exterior surface, can include a first plurality of nanostructures arranged to retroreflect light that strikes the first metasurface. A second metasurface, disposed on the second exterior surface, can include a second plurality of nanostructures arranged to retroreflect light that strikes the second metasurface.

Abstract: Various embodiments for a laminate glass article having an integrated switch therein and related methods are provided. The laminated glass article a force sensor configured within one or more layers of the laminate with sufficient spacer incorporation to provide a force sensing switch. Related methods are also provided.

Abstract: Pathside communication relay (PCR) for collecting and distributing pathside data among client devices. The PCR collects client data from client devices (such as vehicles, pedestrians, and roadside infrastructure) and sensor data from sensors. The PCR processes the collected client data and sensor data and generates pathside data to be distributed among the client devices. In some examples, the PCR includes wireless telecommunication circuitry for distributing the pathside data over dedicated short-range communications (DSRC) signals using the Wireless Access in Vehicular Environments (WAVE) protocol and/or Cellular-Vehicle to everything (Cellular-V2X) communications. The pathside data can include location data of client devices and other objects, ambient conditions, traffic data, and other information to facilitate improved decision-making (such as collision avoidance) by client devices.

Abstract: Pathside communication relay (PCR) for collecting pathside data for a PCR network. The PCR collects client data from client devices (such as vehicles, pedestrians, and roadside infrastructure) and may also collect sensor data from sensors. The PCR processes the collected client data (and sensor data) to generate pathside data and transmits the pathside data to a PCR network. In some examples, the PCR includes wireless telecommunication circuitry for distributing the pathside data over dedicated short-range communications (DSRC) signals using the Wireless Access in Vehicular Environments (WAVE) protocol and/or Cellular-Vehicle to everything (Cellular-V2X) communications. The pathside data can include location data of client devices and other objects, ambient conditions, traffic data, and other information to facilitate improved decision-making (such as collision avoidance) by client devices, traffic control devices, and traffic management systems.

Abstract: Pathside communication relay (PCR) for collecting and distributing pathside data among client devices. The PCR collects client data from client devices (such as vehicles, pedestrians, and roadside infrastructure) and sensor data from sensors. The PCR processes the collected client data and sensor data and generates pathside data to be distributed among the client devices. In some examples, the PCR includes wireless telecommunication circuitry for distributing the pathside data over dedicated short-range communications (DSRC) signals using the Wireless Access in Vehicular Environments (WAVE) protocol and/or Cellular-Vehicle to everything (Cellular-V2X) communications. The pathside data can include location data of client devices and other objects, ambient conditions, traffic data, and other information to facilitate improved decision-making (such as collision avoidance) by client devices.

Abstract: Pathside communication relay (PCR) for distributing network data among client devices. The PCR receives network data from a PCR network, which may include other PCRs and a central unit. The network data is processed (e.g., to determine a relevant portion for one or more client devices connected to the PCR), and at least a portion of the network data is transmitted within a communication coverage area. In some examples, the PCR includes wireless telecommunication circuitry for distributing the network data over dedicated short-range communications (DSRC) signals using the Wireless Access in Vehicular Environments (WAVE) protocol. The network data can include pathside data from other PCRs in the PCR network and other information, such as location data of client devices and other objects, ambient conditions, traffic data, and other information to facilitate improved decision-making (such as collision avoidance) by client devices.

Abstract: A stabilized ultra-high bandwidth capacity transceiver system that combines an E-band (71-76 GHz, 81-86 GHz) millimeter wave RF transceiver with an eye-safe adaptive optics Free Space Optical (FSO) transceiver as a combined apparatus for simultaneous point-to-point commercial communications. The apparatus has a high degree of assured carrier availability under stressing environmental conditions. The apparatus establishes and maintains pointing and stabilization of mmW RF and FSO optical beams between adjacent line of sight apparatuses. The apparatus can rapidly acquire and reacquire the FSO optical carrier link in the event the optical carrier link is impaired due to adverse weather.

Abstract: A stabilized ultra-high bandwidth capacity transceiver system that combines an E-band (71-76 GHz, 81-86 GHz) millimeter wave RF transceiver with an eye-safe adaptive optics Free Space Optical (FSO) transceiver as a combined apparatus for simultaneous point-to-point commercial communications. The apparatus has a high degree of assured carrier availability under stressing environmental conditions. The apparatus establishes and maintains pointing and stabilization of mmW RF and FSO optical beams between adjacent line of sight apparatuses. The apparatus can rapidly acquire and reacquire the FSO optical carrier link in the event the optical carrier link is impaired due to adverse weather.

Abstract: A stabilized ultra-high bandwidth capacity transceiver system that combines an E-band (71-76 GHz, 81-86 GHz) millimeter wave RF transceiver with an eye-safe adaptive optics Free Space Optical (FSO) transceiver as a combined apparatus for simultaneous point-to-point commercial communications. The apparatus has a high degree of assured carrier availability under stressing environmental conditions. The apparatus establishes and maintains pointing and stabilization of mmW RF and FSO optical beams between adjacent line of sight apparatuses. The apparatus can rapidly acquire and reacquire the FSO optical carrier link in the event the optical carrier link is impaired due to adverse weather.

Abstract: There is provided a rotary disk laser module including disk comprised of at least one lasing material. The lasing material may be excited by a laser excitation source, such as an optical pump beam directed onto the disk. The laser gain region contains excited lasing material and extends between the first and second surfaces of the disk. A laser generator is formed when the gain region is brought into optical communication with a laser generator. A laser generator may be a laser oscillator or a laser amplifier. To create pulsed laser output, an optical modulator is positioned in the laser beam propagation path of the laser generator.

Abstract: There is provided a rotary disk laser module including disk comprised of at least one lasing material. The lasing material may be excited by a laser excitation source, such as an optical pump beam directed onto the disk. The laser gain region contains excited lasing material and extends between the first and second surfaces of the disk. A laser generator is formed when the gain region is brought into optical communication with a laser generator. A laser generator may be a laser oscillator or a laser amplifier. The disk may move in order to enable various lasing functionality to the laser module. For instance, the disk may rotate, translate, or tilt to rotate the gain region, provide various quantum effects, or to enable heat transfer with a heat sink. A high-power laser generator may be formed by using a number of disks containing lasing material, exciting the lasing material using at least one laser excitation source, and bringing them into optical communication with a laser generator.

Abstract: A stabilized ultra-high bandwidth capacity transceiver system that combines an E-band (71-76 GHz, 81-86 GHz) millimeter wave RF transceiver with an eye-safe adaptive optics Free Space Optical (FSO) transceiver as a combined apparatus for simultaneous point-to-point commercial communications. The apparatus has a high degree of assured carrier availability under stressing environmental conditions. The apparatus establishes and maintains pointing and stabilization of mmW RF and FSO optical beams between adjacent line of sight apparatuses. The apparatus can rapidly acquire and reacquire the FSO optical carrier link in the event the optical carrier link is impaired due to adverse weather.

Abstract: There is provided a rotary disk module to efficiently transfer heat from a rotatable disk to a stationary heat sink. The rotatable disk is in proximity of the heat sink with a small gap that allows the disk to move, and which is filled with a cooling medium. The cooling medium aids in transfer of heat from the rotatable disk to the heat sink by conduction, convection, evaporation and other heat transfer means. The heat may be deposited on a portion of the rotatable disk on which an optical beam is being incident or from which an optical beam is generated or both. The rotary disk may be fabricated from various materials depending on the intended applications of the module, and the heat sink is preferably fabricated from materials with high thermal conductivity. The disk may be mounted on a disk-mounting surface that provides for a gap between the rotatable disk and the heat sink surface. The disk-mounting surface is in turn connected to a mechanism for rotating the disk in a smooth fashion.

Abstract: There is provided a rotary disk laser module including disk comprised of at least one lasing material. The lasing material may be excited by a laser excitation source, such as an optical pump beam directed onto the disk. The laser gain region contains excited lasing material and extends between the first and second surfaces of the disk. A laser generator is formed when the gain region is brought into optical communication with a laser generator. A laser generator may be a laser oscillator or a laser amplifier. The disk may move in order to enable various lasing functionality to the laser module. For instance, the disk may rotate, translate, or tilt to rotate the gain region, provide various quantum effects, or to enable heat transfer with a heat sink. A high-power laser generator may be formed by using a number of disks containing lasing material, exciting the lasing material using at least one laser excitation source, and bringing them into optical communication with a laser generator.

Abstract: A rotary disk module, having a rotary disk is interposed between a pair of heat sinks each spaced from the rotary disk by a gap. A motor is installed for driving the rotary disk to rotate. The gaps are filled with cooling medium such as helium, water or liquid nitrogen to remove the heat generated in the rotary disk by conduction, convection or evaporation. The rotary disk may be fabricated from various materials depending on the intended applications of the module, and the heat sink surfaces are preferably fabricated from materials with higher thermal conductivity. The rotation of the rotary disk allows the regions on which an optical pump radiation is delivered to be separated from the regions from which an optical radiation is extracted. In addition to improved heat dissipation effect, the rotation of the optical disk allows multiple directions of pump energy or multiple sources of pump energies and/or multiple beams of optical radiation to be applied and extracted simultaneously.

Abstract: There is provided a rotary disk laser module including disk comprised of at least one lasing material. The disk further includes a first surface, a second surface and a gain region. The gain region contains excited lasing material and extends between the first and second surfaces. The lasing material may be excited by a pump beam directed onto the disk. A laser is generated when the gain region is brought into optical communication with a laser generator. The disk may move in order to enable various lasing functionality to the laser module. For instance, the disk may rotate, translate, or tilt to rotate the gain region, provide various quantum effects, or to enable heat transfer with a heat sink.

Abstract: There is provided a rotary disk laser module including disk comprised of at least one lasing material. The disk further includes a first surface, a second surface and a gain region. The gain region contains excited lasing material and extends between the first and second surfaces. The lasing material may be excited by a pump beam directed onto the disk. A laser is generated when the gain region is brought into optical communication with a laser generator. The disk may move in order to enable various lasing functionality to the laser module. For instance, the disk may rotate, translate, or tilt to rotate the gain region, provide various quantum effects, or to enable heat transfer with a heat sink.

Abstract: An optical demultiplexer, having an angular dispersion generator followed by an angular amplifier. The angular dispersion generator disperses an incident optical signal into a plurality of channels. While traveling through the angular dispersion amplifier, the channels with incident angles larger than a critical angle are internally totally reflected, and the channels with incident angles smaller than the critical angle are partly reflected, and partly transmitting into an ambient medium. The transmitting part of the channels are thus further dispersed and demultiplexed.

Abstract: A rotary disk module, having a rotary disk is interposed between a pair of heat sinks each spaced from the rotary disk by a gap. A motor is installed for driving the rotary disk to rotate. The gaps are filled with cooling medium such as helium, water or liquid nitrogen to remove the heat generated in the rotary disk by conduction, convection or evaporation. The rotary disk may be fabricated from various materials depending on the intended applications of the module, and the heat sink surfaces are preferably fabricated from materials with higher thermal conductivity. The rotation of the rotary disk allows the regions on which an optical pump radiation is delivered to be separated from the regions from which an optical radiation is extracted. In addition to improved heat dissipation effect, the rotation of the optical disk allows multiple directions of pump energy or multiple sources of pump energies and/or multiple beams of optical radiation to be applied and extracted simultaneously.

Abstract: A method for autonomously assembling a segmented filled aperture telescope (“AAST”) in space using modular components that are launched into orbit using multiple launches. In one embodiment, a plurality of interlocking modular mirror backing structure segments, with or without an edge truss, are introduced to a satellite. To this are coupled a plurality of modular segmented optics to form a primary concave mirror. In another embodiment, the mirror backing structure and modular optics segments are formed as a single modular unit, with a plurality of these units coupled together to form the primary concave mirror. The modular concept allows primary mirrors of virtually limitless size to be formed in space with or without using astronauts.