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Why Choose PPC Coatings?

At PPC, our advanced ion-beam sputtering (IBS) technol-ogy is a repeatable and controllable process that results in dense, durable, high-damage-threshold thin films. Since the materials are directly sputtered onto the sub- strate, the process can be precisely controlled and easily automated so that films can be deposited with extremely high accuracy and repeatability.Unlike conventional evaporative and ion-assisted films that have porous microstructures, IBS films have extremely densely packed structures that make them im- pervious to water vapor. Consequently, our IBS coatings are completely insensitive to changes in environmental conditions such as heat, humidity and pressure. Spectral Data From a 1064 nm Anti-reflection Coating Run For 0 Degrees % R

Advantages of Our Ion-Beam-Sputtered (IBS) Dielectric Thin Films

00.10.20.30.40.5 95010001050110011501200 Wavelength (nm) • Durable coatings are easy to clean and chemically resistant
Target Optical Substrate Ion Source SputteredMaterial Actual LDT Data of 1064 nm Mirror • Dense and non-
10080 porous structure is insensitive to moisture and other environmental fac- tors Coating Types
48 J/cm 2 • Superior adhesion
40 eliminates delami-nation
Damage Frequency (%) 200 60 • Low scatter and absorption losses result in high dam-age thresholds and long lifetimes
010050 Fluence (J/cm 2 ) • Repeatable, highly controlled process for precise layer control
Illustration of IBS coating process 3.503.00 2.50 2.00 • High reflectors• Anti-reflection (ARs) • Beamsplitters • Polarizers • Partial reflectors• Dichroic mirrors • Non-polarizers • Low dispersion • Broadband dielectric
1.50 Absorption (ppm) 1.00 0.50 0.00 0.004.002.00 1.00 3.00 5.00 Measurement Point (mm) PPC IBS Coating Absorption Data(R>99.99% at 1064 nm)

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