beam splitter

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beam

 [bēm]
a unidirectional, or approximately unidirectional, emission of electromagnetic radiation or particles.
useful beam in radiology, that part of the primary radiation that is permitted to emerge from the tubehead assembly of an x-ray machine, as limited by the aperture or port and accessory collimating devices.
beam splitter a device that reflects light from the output phosphor of an image intensifier to a photographic recording. Called also image distributor.

beam splitter

a device that reflects light from the output phosphor of an image intensifier to a photographic recording. Also called image distributor.

beam splitter

Radiation oncology
A device that divides a beam of electromagnetic radiation into 2 or more distinct beams.
 
Telemedicine
A device that divides the image beam of a clinical examining scope so the physician has the choice of looking at the image on a video monitor or directly through the scope.

beam splitter 

An optical system which separates an incident beam of light into two beams of lesser intensity, one reflected and the other transmitted, e.g. a semi-silvered mirror. Some beam splitters are made of birefringent material, which splits the incident light beam into oppositely polarized beams. They are called polarizing beam splitters. Example: Wollaston prism.
References in periodicals archive ?
CVI Laser's Polarizing Beamsplitter Cubes have an improved extinction ratio greater than 1000:1, augmenting the fiber optic market with even more DWDM versatility.
We are very excited about this new, higher extinction ratio because it escalates the level of proficiency to our beamsplitter thin film coating technology.
To learn more about the new polarizing beamsplitter cubes, please visit booth # 635.
3) Flexibility and stability: The beamsplitter ratios of uncoated, WTM beamsplitters are determined by their indexes of refraction and are, consequently, fixed (and limited) for each laser wavelength used and type of material available.
Figure 1 shows a diagram of the previous NIST high-power laser detector calibration system in which a WTM was used as a beamsplitter to provide simultaneous beams to the device under test (DUT) and the primary standard calorimeter.
Shorter beam paths were used, in order to be adapted for the higher-diverged laser beam; thus, making it very difficult to block the unused, higher order beams coming from the beamsplitter.
Several years ago, we re-designed our calibration system to incorporate a monitor detector and second shutter combination (4), at which time the ROC technique became the only beamsplitter technique used for both 1.
The ROC can be used as either a beamsplitter or an attenuator in the calibration system.
The stability of the geometrical shape of the ROC during the measurement process is critical for both beamsplitter and attenuator functions; thus, knowledge of the expected temperature rise and thermal expansion properties of the material is important.
For optical fiber power measurements, the beamsplitter system is modified to incorporate fiber components such as optical fibers and fiber splitters (Fig.
Fiber laser design wavelengths have now been incorporated into the mirrors, partial reflectors, lenses, windows, beamsplitters and quartz waveplates product lines.
Other product categories, including UV, visual, infrared bandpass filters, antireflection coatings, mirrors and beamsplitters, will be added to the on-line catalog in the near future.