Volume 134, Number 5, June 2021
|Number of page(s)||5|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||10 August 2021|
Broadband terahertz surface plasmon-polaritons beam splitter
Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin University of Electronic Technology Guilin 541004, China
Received: 8 April 2021
Accepted: 19 May 2021
In this paper, we propose a novel design of broadband terahertz (THz) surface plasmon-polaritons (SPPs) beam splitter, which obtains 50%-50% energy splitting on input and output SPPs waveguides. The conventional THz SPPs beam splitter is a component of the two parallel THz SPPs waveguides coupler, which can only operate at the single frequency. To make the device more universal, we employ the quantum engineering technique, called fractional stimulated Raman adiabatic passage (f-STIRAP) to design the 50%-50% beam splitter with good performance on broadband.
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