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Smart Lasers

BioPhotonics
Mar 2011
Coherent Inc.Request Info
 
Coherent Inc. has launched the Obis family of integrated lasers featuring true plug-and-play simplicity for continuous-wave applications. Based on direct diode and optically pumped semiconductor laser technologies and using state-of-the-art miniaturized components, they have all the control functions integrated inside the compact laser head, in contrast to the traditional architecture of head, dedicated cable and controller. With power up to 100 mW, the initial product offering includes models at seven wavelengths from the UV through the NIR: 375, 405, 445, 488, 640, 660 and 785 nm, all with a circular TEM00 output beam. Applications include life sciences, metrology and inspection. Examples include fluorescence-based techniques such as flow cytometry, confocal microscopy and array readers for drug discovery. The wavelength scalability enables optimum excitation of target fluorophores.


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GLOSSARY
flow cytometry
A method of measuring the characteristics of microscopic particles, usually cells, as they flow in a fluid stream through a beam of light. Particles may be stained with fluorescent dye and the fluorescence detected via laser illumination.
fluorescence
The emission of light or other electromagnetic radiation of longer wavelengths by a substance as a result of the absorption of some other radiation of shorter wavelengths, provided the emission continues only as long as the stimulus producing it is maintained. In other words, fluorescence is the luminescence that persists for less than about 10-8 s after excitation.
metrology
The science of measurement, particularly of lengths and angles.
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