Photonics Showcase Newsletter (7/19/2022)

It’s a fine line between full protection and being able to align a visible beam. Detector cards, cameras and other engineering controls don’t always do the trick and specific eyewear is needed to accurately adjust, focus, and align the laser for proper functioning, while protecting the operator from harm.

Hamamatsu’s comprehensive line of NIR and surface-enhanced Raman spectroscopic modules deliver precise results in an ultracompact form. Second to none in reliability, sensitivity, and ease of integration in a wide spectral range. See it in action at hama-spectro.com.

The model 771 operates as both a high-resolution spectrum analyzer and a high-accuracy wavelength meter. With spectral resolution up to 2 GHz and wavelength accuracy as high as ±0.0001 nm, this system provides the most detailed information about the spectral properties of lasers operating from 375 nm to 12 μm.

Bullseye^® apodizing filters radially modify beam distribution in optical systems. Standard Gaussian or customized filters inserted in line with a light source reduce undesirable intensity variations. Configurations include both dark-in-the-center, typically used to reduce low frequency variations or to create top-hat wavefronts, and clear-in-the-center functions, typically used to reduce high-frequency variations outside of the main beam profile.