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Photonics Spectra
Sep 2007
Iridian Spectral TechnologiesRequest Info
Iridian-Spectral-Tech.jpgIridian Spectral Technologies Ltd. has unveiled a line of ultrasteep short-pass edge filters for Raman spectroscopy applications. Available at 514.5, 532, 633 and 785 nm, they deliver tight edge steepness of <80 cm–1, passband ripple of ±<2%, a 20-mm clear aperture and laser line blocking of >6 optical density. The RoHS-compliant filters meet MIL specifications for environmental testing and mechanical durability. All use hard dielectric coatings and none requires cover glass. Transmittance is >90%, scratch-dig surface quality is 60/40, and temperature dependence is 5 pm/°C.


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