Gaussian beam focusing in metamaterial with the second harmonic generation effect as a perfect lens using paraxial group transformation

摘要

In this paper, propagation of the Gaussian beam in two structures of the perfect lens with the ability of the second harmonic generation is investigated by using paraxial group transformation method. For this purpose, at first the concept of perfect lens, the second harmonic generation, and paraxial group transformation method are introduced. Then, generation and propagation of the second harmonic beam in two structures of perfect lens are simulated. Results show that the image quality can be increased by these structures.