05 Aug 2008 PPC announces advanced polishing, testing and coating techniques for optical grade silicon Precision Photonics announces the successful development of advanced polishing, testing and coating techniques for optical grade silicon material. By utilizing state-of-the-art metrology, wafer-based optical fabrication and PPC’s advanced IBS coatings, we have been able to produce ultra-flat components repeatedly and in large quantities.
Thickness measurements taken with our laser-based, SW1500 metrology system confirm TTV less than 15nm across a 50mm diameter - a parallelism of less than < .1 arcseconds! |
