The and parameters are the standard Breit–Wigner parameters (position and width of the resonance, respectively). The q parameter is the so-called Fano parameter. It is interpreted (within the Feshbach–Fano partitioning theory) as the ratio between the resonant and direct (background) scattering probability. In the case the direct scattering probability is vanishing, the q parameter becomes infinite and the Fano formula is boiling down to the usual Breit–Wigner (Lorentzian) formula:
Wipo Publishes Patent of Unipixel Displays, Martin A. Kykta, Robert J. Petcavich and Daniel K. Van Ostrand for "Electrically-Tunable Optical Filter Based on Fano Resonance" (American Inventors)
May 03, 2013; GENEVA, May 3 -- Publication No. WO/2013/062795 was published on May 2.Title of the invention: "ELECTRICALLY-TUNABLE OPTICAL...