INCREASING EFFICIENCY OF THE TERAHERTZ GENERATIONIN Mg:LiNbO3 CRYSTAL BY OPTIMIZING THE ANGULAR DISTRIBUTION OF THE OUTPUT RADIATION

Авторы: Markov D.A., Safronenkov D.A., Starkova N.V., Kuznetsov K.A., Kitaeva G.Kh
Сборник: The 5-th International Conference TERAHERTZ AND MICROWAVE RADIATION: GENERATION, DETECTION AND APPLICATIONS (TERA-2023)
Серия: ABSTRACT BOOK
Год издания: 2023
Издательство: НИЯУ МИФИ
Местоположение издательства: Москва
Первая страница: 116
Последняя страница: 116
Аннотация: A theoretical model has been proposed for calculation of the frequency-angular distribution of THz radiation,taking into account the influence of nonlinear processes that occur with violation of the exact longitudinal phase matching condition. Examples of the angular distributions are numerically calculated and analyzed for the radiation power densities at 1 THz inside the crystal, inside and outside the Si couplers with different exit surfaces. Experimentally, the temporal dependences of THz electric field and the spectral power density distributions were measured for diff erent shapes of the Si couplers. Comparison of the theoretical and experimental results demonstrates advantages of the convex output surfaces of Si couplers and validity of thedeveloped theoretical approach for further modeling the improved Si elements.
Добавил в систему: Китаева Галия Хасановна

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