Effects of AOI, F/# and Cone Angle on Filter Performance
Learn more about the difference between angle of incidence (AOI) and 1/2 cone angle. They will affect your filter performance. Read more to learn how.
Fiber bundles with integrated bandpass and notch filters for in-vivo Raman spectroscopy
Proc. SPIE 11233, Optical Fibers and Sensors for Medical DIagnostics and Treatment Applicaitons XX, 112230S (2020)
Hyperspectral imaging using a linear variable filter (LVF) based ultra-compact camera
Proc. SPIE 11287, Photonic Instrumentation Engineering VII;1128715 (2020)
Blocking in an Optical Filter
To understand blocking, one has to understand the concept of optical density (OD). In an interference filter, OD is generated by reflecting unwanted light back instead of letting it go through the filter.
Filter Cleaning Tech Note
Learn best practices for cleaning your Omega Optical filters. The vast majority of Omega Optical’s interference filters are either sputtered oxide or coatings protected with coverslips.
Ion-assisted deposition of moisture-stable Hafnium Oxide films for ultraviolet applications
Applied Optics, 41 (16): 3205-3210 (2002) doi 10.1364/AO.41.003205
Ion-assisted deposition of moisture stable Hafnium Oxide thin-films
Dale Morton and Traci R. Jensen Optical Interference Coatings, OSA Technical Digest Series (Optical Society of America, 2001), paper MB6 doi 10.1364/OIC.2001.mb6
Gradient Index Film Fabrication Using Optical Control Techniques
Proc. SPIE 2046, Inhomogeneous and Quasi-Inhomogeneous Optical Coatings, 224 (November 2, 1993); http://dx.doi.org/10.1117/12.163553