High Performance Interference Filter Coating Technology

LASER COMPONENTS is pleased to offer high performance optical interference filter coatings. These products are produced by our partner, Omega Optical, utilising Dual Magnetron Reactive Sputtering (DMRS) technology. Interference filters can achieve a transmission in excess of 97%, whilst having an out of band blocking of >OD6 from 300-1000 nm. A filter with these characteristics operating in a system with an ideal light source and detector could be expected to have a signal/noise ratio of exceeding 10,000:1.

Whilst good performance is very important, it is also vital to be able to produce this level consistently on a batch to batch basis. With the DMRS process, Omega Optical employ the latest methods in optical thin-film design and deposition control. Utilising the DMRS technology, very precise individual layer thickness is achieved along with forward and backward “proof-reading” of layer execution, leading to a high degree of predictability and lot-to-lot repeatability.

The sputtering process also results in very good transmission characteristics with minimal band pass rippling.

The hard coated QuantaMAX™ filter range is available on a number of different substrates and for a wide variety of wavelengths.