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Working principle of a streak camera. A streak camera is an instrument for measuring the variation in a pulse of light's intensity with time. They are used to measure the pulse duration of some ultrafast laser systems and for applications such as time-resolved spectroscopy and LIDAR.
The targets are known as "retroreflective" because they reflect the laser beam back in the same direction it came from (in this case, back to the laser tracker). One type of target in common use is called a spherically mounted retroreflector (SMR), [ 5 ] which resembles a ball bearing with mirrored surfaces cut into it.
With each rotation the beam scans the surrounding surface. Any ships or obstructions reflect microwaves back to the antenna, displaying on the radar screen. Marine radars are X band or S band radars on ships, used to detect other ships and land hazards, to provide bearing and distance for collision avoidance and navigation at sea. [ 1 ]
The $241 million deal announced on Nov. 13 would give Kpler control over Spire's satellites and maritime Automatic Identification System (AIS) data stream, which tracks ships Spire's sale of ship ...
An optical modulator is a device which is used to modulate a beam of light. The beam may be carried over free space, or propagated through an optical waveguide (optical fibre). Depending on the parameter of a light beam which is manipulated, modulators may be categorized into amplitude modulators, phase modulators, polarization modulators, etc.
On the hardware side, the company has three main product lines: mobile Eye Tracking Glasses (ETG), [18] [19] [20] remote eye tracking systems (RED), [21] [22] [23] and tower-mounted systems . The software for experimental design and data analysis is called Experiment Suite and comes in different packages depending on the user's research interests.
Each polygon that intersects with the beam must be visible, and is removed from the shape of the beam and added to a render queue. When a beam intersects with a reflective or refractive polygon, a new beam is created in a similar fashion to ray-tracing. A variant of beam tracing casts a pyramidal beam through each pixel of the image plane. This ...
The phase-shifted light is input to a radiating element (a nanophotonic antenna) that couples the light into free space. Light radiated by the elements is combined in the far-field and forms the far-field pattern of the array. By adjusting the relative phase shift between the elements, a beam can be formed and steered.