6 June 1995 Resonance phenomena in grating/waveguide structures
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Proceedings Volume 2426, 9th Meeting on Optical Engineering in Israel; (1995); doi: 10.1117/12.211220
Event: Optical Engineering in Israel: 9th Meeting, 1994, Tel-Aviv, Israel
Abstract
An optical resonance phenomena, based on an interference effect that occurs when a plane wave is incident on a dielectric grating/waveguide structure, is presented. The incident wave excites a guided mode in the waveguide which in turn is partially diffracted by the grating in the direction of the transmitted zero order beam, interfering destructively. As a result most of the light energy is contained in the reflected zero order beam. This resonance phenomena is explained with a ray picture of the multiple interference and analyzed by solving Maxwell's equations for the exact eigenfunctions in a grating/waveguide structure. Some basic structures have been fabricated and experimentally tested. The results reveal that the resonance beamwidth and bandwidth depend strongly on the parameters of the grating/waveguide structure. Measurements indicate that the bandwidth of the resonances can be as narrow as 1 nm, with a corresponding angular beamwidth on the order of minutes of arc.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Sharon, David J. Rosenblatt, Asher A. Friesem, Hans-Georg Weber, Herbert Engel, Ralf Steingrueber, "Resonance phenomena in grating/waveguide structures", Proc. SPIE 2426, 9th Meeting on Optical Engineering in Israel, (6 June 1995); doi: 10.1117/12.211220; https://doi.org/10.1117/12.211220
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