Electromagnetic Waves and Optical Resonators

Stephen Lynch

L. M. Kocharyan

Summary form only given. The resonant nature of the excitation of surface electromagnetic waves (SEWs), i.e. the resonant dependence of the reflectivity on the incident radiation wavevector component parallel to the interface (surface), k, leads to the nonlinear phenomena arising and particularly optical bi- and multi-stability appearance at relatively small nonlinearities. At such nonlinearities the field induced variation of the SEW wavevector, K, becomes comparable with the width, Im(K), of the mentioned geometrical (angular) resonance. In the paper the theory of optical bi- and multistability at the excitation of TM-polarized SEWs via the Kretschmann attenuated total reflection (ATR) scheme (glass prism-metal film-dielectric) in which the dielectric exhibits a relatively small one- or two-photon resonant nonlinearity is presented. The system of equations describing the excitation of nonlinear SEWs is presented in general form for arbitrary type of nonlinearity by means of the SEW wavevector nonlinear term, K/sup NL/.

V. K. Ablekov, Vadim S. Belyaev, V. P. Vasil'ev +3 more

Matthias A. Müller, G. Muller, Andreas Wicht +2 more

Summary form only given. We present our work on the modified properties of an optical resonator that contains an electromagnetically induced transparency (EIT) medium. Transparency and steep index of refraction are utilized to reduce the linewidth of the cavity. The influence of the relative intensities of the laser fields is studied, and the results are in good agreement with computer simulations. The linewidth of an optical cavity depends on the phase shift accumulated by the light wave during one round trip. A transparent medium with very strong dispersion causes a very rapidly varying phase shift and would have a remarkable effect on the linewidth of the cavity.

András Kovács, Paul O’Hara

É. P. Sinyavskiı̆, E. I. Brusenskaya

The contribution of an intense squeezed electromagnetic wave to magnetoabsorption is analyzed. It is demonstrated that an amplitude-squeezed (or phase-squeezed) resonance electromagnetic wave more strongly affects the magnetoabsorption peaks than classical coherent radiation.