General solution of the excitation problem of a symmetric flat dielectric structure by plane electromagnetic waves

• Date: 2023
• Main Authors: Vasiliev, A.V., Povrozin, A.I., Sotnikov, G.V.
• Format: Article
• Language: English
• Published: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2023
• Series: Problems of Atomic Science and Technology
• Subjects: Linear charged-particle accelerators (theory and technology)
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/196149
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: General solution of the excitation problem of a symmetric flat dielectric structure by plane electromagnetic waves / A.V. Vasiliev, A.I. Povrozin, G.V. Sotnikov // Problems of Atomic Science and Technology. — 2023. — № 3. — С. 99-102. — Бібліогр.: 16 назв. — англ.

General solution of the excitation problem of a symmetric flat dielectric structure by two laser pulses is obtained. The symmetrical geometry consists of two dielectric prisms separated by a vacuum channel for electron acceleration (so called “sandwich”). Each prism can be illuminated with a separate laser pulse; electric filed amplitudes of pulses can differ. The general solution consist from a symmetric distribution and asymmetric one of a longitudinal electric field across the vacuum channel. In the case of a general solution, the effect of the asymmetric part on the total amplitude of the accelerating and defocusing fields is also analyzed. We determined also conditions when a symmetric or asymmetric solution only is realized. For these cases, the obtained analytical solutions are compared with results of full time-domain numerical simulations of bilateral excitation of dielectric prisms with laser pulses.