Directivity of radiation from a localized source placed in photonic crystals (光エレクトロニクス) Yasumoto Kiyotoshi Jandieri Vakhtang 社団法人電子情報通信学会 電子情報通信学会技術研究報告. OPE, 光エレクトロニクス 09135685 108 260 47 51 2008-10-16 A directivity of radiation from a localized source placed in photonic crystals is investigated theoretically using a two-dimensional model. The closed form expression for the far field of radiation is derived and used to examine two primary factors governing the directivity. It is shown that the directivity is uniquely characterized by the transmission windows of the photonic crystals in the frequency and angular spectral domains and the Fabry-Perot resonance condition for the space surrounding the source. 2008-10-16 110007100731 AN10442691 9703744 ENG CJP NDL NII-ELS 1 8 Directivity of Radiation from a Localized Source Placed in Photonic Crystals Yasumoto Kiyotoshi Jandieri Vakhtang The Institute of Electronics, Information and Communication Engineers Technical report of IEICE. OPE A directivity of radiation from a localized source placed in photonic crystals is investigated theoretically using a two-dimensional model. The closed form expression for the far field of radiation is derived and used to examine two primary factors governing the directivity. It is shown that the directivity is uniquely characterized by the transmission windows of the photonic crystals in the frequency and angular spectral domains and the Fabry-Perot resonance condition for the space surrounding the source. Yasumoto Kiyotoshi Department of Computer Science and Communication Engineering, Kyushu University Jandieri Vakhtang Physics Department, Faculty of Exact and Natural Sciences, Tbilisi State University