PRODUCT UPDATE
LATEST PRODUCT UPDATE
OPTICAL FILTERS MiNY PL Trichroid Thin Film Polarisers
Laser Components has developed trichroid thin- film polarisers (TFPs), which make it possible to simultaneously separate the polarisation of three wavelengths. These optics have excellent reflectivity for
s-polarisation in blue (450nm), green (520nm) and red (640nm) light, with p-polarisation being almost completely transmitted. These TFPs may be used to combine linearly polarised laser beams from different sources of the same or different wavelength, or conversely to separate unpolarised light at three wavelengths into the two polarisations. This complex and challenging design is produced using the firm’s ion beam sputtering facility, which enables particularly compact layer structures with good reflectivity.
www.lasercomponents.com
Hamamatsu Photonics has developed a system for high-speed inspection of micro-LEDs on wafers to detect abnormalities in their external appearance, intensity and wavelength. The MiNY PL inspection system uses a photoluminescence measurement technique, based on Hamamatsu’s advanced image processing technology, and a newly developed imaging module. The system makes fast pass/fail decisions when inspecting micro-LEDs, which will help increase product yield in display applications, and also raise R&D efficiency of micro-LEDs. The MiNY PL will streamline the 100 per cent inspection process of micro-LEDs in future mass-production lines.
www.hamamatsu.com
SENSORS AND DETECTORS Large Area Avalanche Photodiodes
Advanced Photonix, a division of OSI Optoelectronics, has introduced compact and rugged Large Area Avalanche Photodiodes (LAAPDs). The new LAAPDs are the largest avalanche photodiodes in the industry, according to the firm, and are available in 3, 5, 10 and 16mm active area diameters. The devices operate at up to 2,000V, with gains of up to 300. With extremely low noise levels and high stable gain, the photodiodes are offered in cooled or uncooled packages.
SPECTROSCOPY Pebble VIS-NIR
Ibsen Photonics has expanded its Pebble platform of ultra compact spectrometers with a new VIS-NIR option, ideal for both fluorescence spectroscopy and absorption measurements. The Pebble VIS-NIR 500-1,100nm spectrometer
has a form factor of only 20 x 15 x 8mm, high resolution and sensitivity, as well as environmental ruggedness. The spectrometer is based on the same proven
diffraction grating technology used in all other Ibsen spectrometers. This ensures that Pebble can be manufactured in high quantities with very small unit-to-unit performance variation.
https://ibsen.com
30 Electro Optics April 2021
The LAAPDs are available with high sensitivity in blue, red or deep UV spectral regions down to 150nm with 120 per cent quantum efficiency. They are ideal for scintillation or direct x-ray detection applications.
www.advancedphotonix.com
More products now online at
www.electrooptics.com/products
ANALYSIS, TEST AND MEASUREMENT
LASER OPTICS
The V-931 two-axis fast steering mirror platform (FSM) from Physik Instumente is based on a frictionless, precision flexure guiding mechanism, with differential voice- coil drives and optical feedback for accurate closed-loop angular position control. The compact, durable design
produces a beam deflection angle to 8° in theta-X and theta-Y, with symmetrical motion characteristics
delivered by its parallel kinematics design. The angular resolution of the standard model is 1µrad (higher resolution models are available). The two orthogonal tip/tilt axes share a common centre of rotation, providing significantly better performance, free of polarisation rotation issues, while reducing package size compared to older designs based on stacking two individual scanning axes.
www.pi-usa.us @electrooptics |
www.electrooptics.com
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