UV Beam Viewer
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542 O p t i c s Phone: 1-800-222-6440 • Fax: 1-949-253-1680 WINDOWS BEAMSPLITTERS OPTICAL FILTERS POLARIZATION OPTICS DIFFRACTION GRATINGS HIGH-ENERGY OPTICS ULTRAFAST LASER OPTICS ACCESSORIES Flashed opal optical disk diffusers scatter incident light, thereby reducing the sensitivity of a detection system to slight positional or angle changes in an incoming beam, or they can be used to improve the uniformity of a light source. For many measurements, particularly of very low signals, optical disk diffusers are more practical and economical than other diffusing options. Our diffusers come in 1" and 1.5" diameter sizes and have a spectral transmittance range of 400 to 2,000 nm. • Significantly less expensive than integrating spheres • Improves uniformity of illumination • Reduces sensitivity to beam position • Reduces effects of angle of incidence changes on detectors Specifications Material Soda lime based material fusing low-iron glass and opalescent glass Diameter tolerance +0/-0.25 mm Thickness 2.2 mm Edge Finish Ground and beveled Surface Quality Commercial Polish Spectral transmittance range 400-2000 nm The diffusing properties of optical disk diffusers vary with wavelength. Use care when performing spectroradiometric measurements, as the diffuser will affect relative spectral distribution of light measured at any particular point in space. Ordering Information Model Diameter (mm) Aperture (mm) 10DIFF-VIS 25 25 15DIFF-VIS 38 38 UV Beam Viewer By placing this optically clear device into the path of a UV laser, beam characteristics such as laser mode structure, beam shape, and beam alignment can be observed because the optical glass will glow green when exposed to UV radiation. Unlike conventional beam viewers, Newport's UV beam viewer is suitable for high power applications, is cleanroom-compatible, and is transmissive. The UVU-2 housing provides threaded #8-32 and M4 holes to enable use as a "wand" or to be fixed on a bench using our standard posts. • Glows green when exposed to UV radiation • Observe laser mode structure, beam shape, and beam alignment • Suitable for high power applications • Cleanroom compatible Specifications Note: The UV Beam Viewer is designed to be a viewing tool only which is introduced to an optical system during alignment and troubleshooting. It is not intended to remain in the optical path permanently. Ordering Information Model UVU-2 PS Series Pedestal Post System page 712 Useful Wavelength Range 250-400 nm Fluorescence Spectrum Green Peak Fluorescence 380 nm Surface Flatness 3ë nominal Surface Quality Commercial grade Clear Aperture 48.3 mm (1.9 in.) Diameter 66.0 mm (2.6 in.) Diameter tolerance +0/-0.25 mm Optic Thickness 5 ± 0.5 mm Overall Housing Thickness < 7.5 mm Wedge (arc min) 30 ± 10 Mounting Holes One #8-32 threaded hole One M4 threaded hole Housing Finish Clear anodized, blead-blasted Damage Threshold 6.0 J/cm2 @ 355 nm with 10 ns pulse at 20 Hz Optical Disk Diffusers

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UV Beam Viewer
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