Resonance phenomena in grating/waveguide structures

A. Sharon; David J. Rosenblatt; Asher A. Friesem; Hans-Georg Weber; Herbert Engel; Ralf Steingrueber

doi:10.1117/12.211220

6 June 1995 Resonance phenomena in grating/waveguide structures

A. Sharon, David J. Rosenblatt, Asher A. Friesem, Hans-Georg Weber, Herbert Engel, Ralf Steingrueber

Proceedings Volume 2426, 9th Meeting on Optical Engineering in Israel; (1995) https://doi.org/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.

Citation Download Citation

A. Sharon, David J. Rosenblatt, Asher A. Friesem, Hans-Georg Weber, Herbert Engel, and Ralf Steingrueber "Resonance phenomena in grating/waveguide structures", Proc. SPIE 2426, 9th Meeting on Optical Engineering in Israel, (6 June 1995); https://doi.org/10.1117/12.211220

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KEYWORDS

Waveguides

Dielectrics

Dielectric polarization

Modulation

Diffraction gratings

Refraction

Sensors

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