Abstract:
A focal plane array electromagnetic radiation detector includes an array of micro-electromagnetic resonant detector cells. Each micro-electromagnetic resonant detector cell may include an ultra-small resonant structure for receiving an electromagnetic wave and adapted to angularly modulate a charged particle beam in response to receiving an electromagnetic wave. Each micro-electromagnetic detector cell may include a detector portion that measures the angular modulation of the charged particle beam. The ultra-small resonant structure is designed to angularly modulate the charged particle beam according to a characteristic of the received electromagnetic wave.
Abstract:
A device for coupling energy in a plasmon wave to an electron beam includes a metal transmission line having a pointed end; a generator mechanism constructed and adapted to generate a beam of charged particles; and a detector microcircuit disposed adjacent to the generator mechanism. The generator mechanism and the detector microcircuit are disposed adjacent the pointed end of the metal transmission line and wherein a beam of charged particles from the generator mechanism to the detector microcircuit electrically couples the plasmon wave traveling along the metal transmission line to the microcircuit.
Abstract:
A charged particle beam including charged particles (e.g., electrons) is generated from a charged particle source (e.g., a cathode or scanning electron beam). As the beam is projected, it passes between plural alternating electric fields. In one embodiment, the electric fields alternate not only on the same side but across from each other as well. The attraction of the charged particles to their oppositely charged fields accelerates the charged particles, thereby increasing their velocities in the corresponding (positive or negative) direction. The velocity oscillation direction can be either perpendicular to the direction of motion of the beam or parallel to the direction of motion of the beam.
Abstract:
An antenna system includes a dielectric structure formed on a substrate; an antenna, partially within the dielectric structure, and supported by the dielectric structure; a reflective surface formed on the substrate. A shield blocks radiation from a portion of the antenna and from at least some of the dielectric structure. The shield is supported by the dielectric structure.
Abstract:
A device for determining the state of a magnetic element includes an emitter constructed and adapted to emit a charged particle beam; a bi-state magnetic cell disposed on a path of the particle beam, whereby the particle beam is deflected along a first deflection path when the cell is in a first magnetic state, and the particle beam is deflected along a second deflection path, distinct from the first deflection path, when the cell is in a second magnetic state. At least one ultra-small resonant structure positioned on the deflection paths.
Abstract:
A device couples energy from an electromagnetic wave to charged particles in a beam. The device includes a micro-resonant structure and a cathode for providing electrons along a path. The micro-resonant structure, on receiving the electromagnetic wave, generates a varying field in a space including a portion of the path. Electrons are deflected or angularly modulated to a second path.
Abstract:
A device couples energy from an electromagnetic wave to charged particles in a beam. The device includes a micro-resonant structure and a cathode for providing electrons along a path. The micro-resonant structure, on receiving the electromagnetic wave, generates a varying field in a space including a portion of the path. Electrons are deflected or angularly modulated to a second path.
Abstract:
When using micro-resonant structures, a resonant structure may be turned on or off (e.g., when a display element is turned on or off in response to a changing image or when a communications switch is turned on or off to send data different data bits). Rather than turning the charged particle beam on and off, the beam may be moved to a position that does not excite the resonant structure, thereby turning off the resonant structure without having to turn off the charged particle beam. In one such embodiment, at least one deflector is placed between a source of charged particles and the resonant structure(s) to be excited. When the resonant structure is to be turned on (i.e., excited), the at least one deflector allows the beam to pass by undeflected. When the resonant structure is to be turned off, the at least one deflector deflects the beam away from the resonant structure by an amount sufficient to prevent the resonant structure from becoming excited.
Abstract:
We describe an ultra-small structure that produces visible light of varying frequency, from a single metallic layer. In one example, a row of metallic posts are etched or plated on a substrate according to a particular geometry. When a charged particle beam passed close by the row of posts, the posts and cavities between them cooperate to resonate and produce radiation in the visible spectrum (or even higher). A plurality of such rows of different geometries can be etched or plated from a single metal layer such that the charged particle beam will yield different visible light frequencies (i.e., different colors) using different ones of the rows.
Abstract:
We describe an ultra-small structure that produces visible light of varying frequency, from a single metallic layer. In one example, a row of metallic posts are etched or plated on a substrate according to a particular geometry. When a charged particle beam passed close by the row of posts, the posts and cavities between them cooperate to resonate and produce radiation in the visible spectrum (or even higher). A plurality of such rows of different geometries can be etched or plated from a single metal layer such that the charged particle beam will yield different visible light frequencies (i.e., different colors) using different ones of the rows.