Rubicon Technology, Inc. (NASDAQ:RBCN), a leading provider of sapphire substrates and products to the LED, RFIC, semiconductor, and optical industries, today announced that it will be showing its line of sapphire optical products including sapphire ingots, windows and blanks at the SPIE Defense, Security, and Sensing conference in Baltimore, MD, April 23 – 27, 2012 in booth #545. Sapphire is ideal for high-performance optical applications because of its physical properties such as optical transparency, physical strength, resistance to abrasion and corrosion, temperature durability, and bio-compatibility. “Rubicon’s ES2 crystal growth method has been refined over the past 11 years to provide consistently high yield and the highest quality sapphire for our customers,” said Raja Parvez, president and CEO of Rubicon Technology. “With this expertise, Rubicon has been able to scale the growth of bulk crystal up to 200 kg without compromising high quality or high yield. This enables us to produce industry-leading, very large, defect-free sapphire crystal for use in the optical market for a wide range of industrial applications.” Rubicon provides sapphire products in 4-inch, 6-inch and 8-inch diameters and will be exhibiting a 12-inch sapphire window. Rubicon will display its line of optical products including very large size sapphire windows and blanks for use in Defense and Aerospace, Instrumentation and Analytical Processing, Sensors and Detectors, Semiconductor Process Equipment, and Medical and Laser applications. Defense & Aerospace -- Sapphire is used in the defense and aerospace industries due to its broad transmission range in the UV through IR spectrum, resistance to scratching and corrosion in sand or salt environments and impact resistance. Applications include targeting systems and protected optics for fighter jets, UAVs and helicopters, FLIRs and Enhanced Vision Systems for aircraft, sensor suites and shaped optics for land, air and sea vehicles, missile domes, countermeasure lamps and transparent armor systems.