Towards remotely directional transmission of terahertz wave in air: The concept of free-space photonic crystal waveguide

Lie-Zhi, T.; Zhao, J.; Dong, Z.; Liu, Z.; Xiong, W.; Hui, Y.; Shkurinov, A.; Peng, Y.; Zhu, Y.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 28 июля 2021 г.

Авторы: Lie-Zhi Tang, Zhao Jia-Yu, Dong Zhang-Hua, Liu Zhong-Hui, Xiong Wen-Ting, Hui Yu-Chen, Shkurinov Alexander, Peng Yan, Zhu Yi-Ming
Журнал: Optics and Laser Technology
Том: 141
Год издания: 2021
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Первая страница: 107102
DOI: 10.1016/j.optlastec.2021.107102
Аннотация: Remotely directional transmission of terahertz (THz) wave in free space is essential in fields of astronomy, space and ground based communications, as well as sensing for atmospheric pollutants, etc. In previous studies, large-aperture halfway mirrors were employed in order to fully collect and then focus the heavily naturally diffracted beam of THz wave to the final target. In this case, however, the broad THz beam not only made a large-size transmission system, but also led to a heavy energy loss due to water vapor absorption within the beam cross-section. Here, we theoretically proposed two index-guiding-based THz waveguide structures composed of plasma filament arrays in air, i.e., hollow cylindrical plasma (HCP) waveguide and free-space photonic crystal (FPC) waveguide (triangular lattice point matrix with a central point defect). Both structures have been demonstrated to well support THz propagation modes, which were confined inside the tiny central air core of the waveguide for an attenuation length up to hundreds of meters. Compared with each other, the FPC waveguide exhibited better performances, including smaller mode field diameter, longer attenuation length and better single-mode property for a broad THz band, making this scheme a promising candidate for long-distance guidance of THz waves in the atmosphere.
Добавил в систему: Шкуринов Александр Павлович

	ИСТИНА	Войти в систему Регистрация
	ФНКЦ РР
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ФНКЦ РР

Towards remotely directional transmission of terahertz wave in air: The concept of free-space photonic crystal waveguideстатья

Прикрепленные файлы