摘要:
A system for generating an energy beam based laser includes an apparatus for receiving an energy beam and for generating an energy beam based laser. The apparatus is configurable or controllable for tuning an output wavelength of the laser generated by the apparatus using the energy beam. The apparatus includes a first component for producing a first magnetic field oriented in a first direction and a second component for producing a second magnetic field oriented in a second direction substantially opposite to the first direction. A channel through the apparatus is defined by the first component and the second component through which the energy beam passes to generate the laser at an output of the apparatus. The apparatus is configurable or controllable for modifying at least one of the first magnetic field and the second magnetic field for tuning the output wavelength of the laser.
摘要:
An acoustic metamaterial including cells to digitally process an incoming sound waveform, and to produce a corresponding response sound waveform as a function of a frequency and a phase of the incoming sound waveform, to produce a total response sound waveform that, when combined with the incoming sound waveform, modifies the incoming sound waveform.
摘要:
Laser amplification utilizing plasma confinement of a gas laser gain media is described. The gas laser gain media is compressed into plasma utilizing a self-reinforcing magnetic field referred to a plasma pinch (e.g., a flow stabilized z-pinch). In the pinch, the gas laser gain media is compressed to a high density, which improves the gain of the media. Coherent light is transmitted through the plasma pinch, which is amplified by the plasma pinch.
摘要:
An optical system with an electronically variable iris. The optical system comprises an optical lens. A number of transparent conductive layers is coupled to an optical surface of the optical lens. A liquid crystal film is separated into a number of portions by the number of transparent conductive layers, wherein a transmissive state of each portion, from the number of portions of the liquid crystal film, with respect to light is configured to change in response to application of a voltage to the number of transparent conductive layers.
摘要:
An apparatus for magnetic field compression includes a plurality of tubes of different dimensions. Each smaller tube extends within a larger tube and each tube includes an electrically conductive material for generating a magnetic field in response to electric current flowing in the conductive material. A longitudinal slot is formed in each tube. The longitudinal slot in each tube is aligned to form an aperture in which the magnetic field is compressed or has a highest magnetic flux in the aperture in response to the electric current flowing in the conductive material of each tube.
摘要:
An apparatus for magnetic field compression includes a toroid and a plurality of separate coils wound around the toroid. The coils are spaced about a circumference of the toroid and each coil generates a magnetic field in response to electric current flowing in the coil. The toroid and a group of the coils each include a size that respectively gradually decreases over a predetermined portion of the toroid. The magnetic field is compressed or has a highest magnetic flux density proximate a central region of the coils around the toroid.
摘要:
A method, apparatus, and system for mitigating undesired effects of a vehicle traveling at a speed greater than a critical Mach number for the vehicle. Ultraviolet energy is generated using a plurality of ultraviolet energy sources associated with an interior structure of the vehicle that travels at the speed greater than the critical Mach number for the vehicle. The ultraviolet energy is transported from the plurality of ultraviolet energy sources past an exterior of the vehicle around a selected location of the vehicle. A plasma is created around the selected location to mitigate the undesired effects of the vehicle traveling at the speed greater than the critical Mach number for the vehicle.
摘要:
A method for detecting an icing condition using an apparatus comprising a piezoelectric material and a vibration detector. The piezoelectric material has a surface proximate to a surface of a vehicle. The piezoelectric material is configured to vibrate. The vibration detector is configured to detect a change in vibrations in the piezoelectric material that indicates a presence of an icing condition on the surface of the piezoelectric material.
摘要:
A light detection system may include a light detecting assembly including a plurality of light detectors. Each light detector may include a substrate, a mirror coupled to the substrate, and a light-receiving tube coupled to the substrate. The light-receiving tube may include a sensor positioned at a first end, a light-transmissive opening at a second end that is opposite from the first end, and a plurality of partitions that are configured to block transmission of light energy. A central light path extends through the light-receiving tube. The system may also include a control unit in communication with the light detecting assembly. The control unit is configured to determine one or more of a direction of light emitted from a light source, a position of the light source, or an intensity of light emitted from the light source based on one or more light detection signals received from the light detecting assembly.
摘要:
Apparatus, methods, and systems for electromagnetic projectile launching are described. In one example, a projectile for use with an electromagnetic launcher includes an armature configured to couple to a payload and configured for acceleration by the electromagnetic launcher. The armature includes a superconductor material.