Beamsplitters for image-splitting applications
Semrock
Hard-coated dichroic beamsplitters
Semrock has introduced hard-coated dichroic beamsplitters for image-splitting applications.
The beamsplitters offer good image quality for both transmitted and reflected light when separating beams of light by wavelength for simultaneous capture of multiple images.
For applications such as fluorescence resonance energy transfer (FRET) and real-time live-cell imaging, users can now separate two, four or even more wavelength ranges onto as many cameras or regions of a single camera sensor.
Compared with typical hard-coated epifluorescence dichroic beamsplitters, these specially designed image-splitting dichroics are more than 10 times flatter, therefore avoiding image aberrations in the reflected beam.
In addition, they offer wide transmission and reflection bands for maximum flexibility and demanding applications like new super-resolution imaging techniques.
An anti-reflection (AR) coating on the backside provides good transmission (typically exceeding 95 per cent average) and minimises artifacts from multiple reflections.
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