Electromagnetic wave scattering from an optically controlled infinite periodic rectangular cavity array with an electrically short period

This paper presents a theoretical examination of optically controlled electromagnetic wave-scattering characteristics of a rectangular cavity grating with a period that is much shorter than the wavelength of the incident electromagnetic wave using semiconductor plasma. The TM electromagnetic plane wave-scattering characteristics are analyzed theoretically using mode-matching technique. Furthermore, theoretical discussion is presented for TM electromagnetic plane wave scattering of the rectangular cavity grating from the viewpoint of its application to an optically controlled reflectarray antenna.