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Photon-Counting Modules

Photonics Spectra
Apr 2011
Laser Components GmbHRequest Info
Laser Components GmbH has expanded its Count series single-photon-counting
modules to include the new Countblue devices. They combine the low count rates of
the existing modules with higher detection efficiencies at shorter wavelengths.
More than 60% of incoming photons can be detected at 405 nm, more than 65% in the
green, and more than 50%, typical, in the red. The semiconductor design ensures
stable count rates and zero bi-stability. The good short-wavelength performance
makes the modules suitable for use in fluorescence spectroscopy and analysis, time-resolved
single-molecule detection, particle sizing, astronomy, lidar and confocal microscopy.
The modules feature the same robust design as the earlier ones and are mechanically
compatible with other commercially available photon-counting modules.


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The scientific observation of celestial radiation that has reached the vicinity of Earth, and the interpretation of these observations to determine the characteristics of the extraterrestrial bodies and phenomena that have emitted the radiation.
FC connector
The fiber optic connector standard for Nippon Telephone & Telegraph (NTT) installations, developed with Nippon Electric Co. (NEC).
fluorescence spectroscopy
The spectroscopic study of radiation emitted by the process of fluorescence.
An acronym of light detection and ranging, describing systems that use a light beam in place of conventional microwave beams for atmospheric monitoring, tracking and detection functions. Ladar, an acronym of laser detection and ranging, uses laser light for detection of speed, altitude, direction and range; it is often called laser radar.
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