Thorlabs selection of air-spaced doublets offer diffraction-limited spot size, superior aberration correction, and higher damage thresholds than traditional cemented doublets. Our Laser-Line Air-Spaced Doublets have been optimized for best performance at either 532 or 1064 nm. Our Air-Spaced Achromatic Doublets have been designed for use across a broad wavelength range with minimal aberration.
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