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These high-power precision pinholes are designed to withstand high power densities, up to 104 W/mm2 (106 W/cm2) for CW lasers. These are designed to be used with the beam incident on the gold-plated side. We recommend aligning the pinhole at low power, increasing the laser to full power after ensuring good throughput.
• Surface: gold-plated front, reverse black (98% emissivity)
• Material: Copper