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CW Laser Series

Photonics Spectra
Sep 2013
Spectra-PhysicsRequest Info
SANTA CLARA, Calif., May 1, 2013 — Spectra-Physics, a Newport Corp. brand, has extended the Excelsior One CW laser series with the release of three new wavelengths: 515, 553 and 594 nm. The expanded series of 14 diode-pumped solid-state and direct-diode lasers is suitable for a variety of fluorescence-based bioinstrumentation applications, including flow cytometry, confocal microscopy and DNA sequencing.

The 515- and 553-nm models deliver output power of 50 mW, and the 594-nm instrument has an output power of 100 mW. The devices are based on a proprietary It’s In the Box design, where the laser cavity and control electronics are integrated into a single, compact package, eliminating unnecessary cables and external controllers.

The instruments deliver TEM00 mode quality and low optical noise for a high signal-to-noise ratio. The DPSS models are available in single- or multi-longitudinal mode versions. They are equipped with an RS-232 software interface, and the direct-diode models include high-speed modulation (TTL and analog).


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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.
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.
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