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Anomalies in relief diffraction gratings

Evgeni Popov 1
1 CLARTE - CLARTE
FRESNEL - Institut FRESNEL
Abstract : The thesis is presented in order to obtain the scientific degree ScD. The thesis consists of 10 chapters divided in three parts: The first part contains three chapters. It deals with the general features of light diffraction by relief gratings (statement of the problem, some main theorems), historical review of investigations on anomalies and their recent classification. Chapter three contains a review of the theoretical methods, including a detailed presentation of the used in our laboratory rigorous numerical method. Part two presents anomalies in bare metallic gratings resonance (chapter 5) and non-resonance (chapter 4 and 6) and some examples of their interaction (chapter 7). It is shown how some general properties of metallic gratings could be explained from a microscopical point of view. Part three analyzes anomalies in corrugated dielectric waveguides - what is the influence of waveguide mode excitation on the diffraction efficiency without (chapter 8) and with (chapter 10) mode interactions. Anomaly in the coefficients of mode coupling (planar Brewster's effect) is studied in chapter 10. Non-resonance anomalies in bare dielectric gratings are discusses in chapter 9.
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Evgeni Popov. Anomalies in relief diffraction gratings. Optics [physics.optics]. Academie des Sciences de Bulgarie, 1991. English. ⟨tel-00782086⟩

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