Rainbow Research Optics offers many Optical Coatings.  They have Broadband Multilayer AR Coating Laser Line V-Coating, Single Layer Anti-Reflection (AR) Coating,High Reflector , 45 Degree Thin Film Polarizer Coating, Laser Line Double-V AR Coating or beam splitting coating, and more.  For more information on these optical coatings or their other services visit www.rainbowoptics.com.