Thin-Film Optical Filters for Phase Control Applications
Thin-film filters (TFFs) can create virtually any spectral shape imaginable to modify the transmission or reflection of light in optical systems. During design, strong emphasis is often placed on optimizing the amplitude response, although for many emerging optics applications, equally important is the need to control the phase of the light. The frequently neglected phase response is increasingly a consideration for optical coating manufacturers, creating challenges that require new,
Photonics Spectra, December 2015