Author(s): Cheng, B (Cheng, Bo); Wang, L (Wang, Lei); Zou, YX (Zou, Yuxiao); Lv, LF (Lv, Longfeng); Li, CC (Li, Chuanchuan); Xu, Y (Xu, Yun); Song, GF (Song, Guofeng)

Source: OPTICS EXPRESS Volume: 29 Issue: 11 Pages: 16939-16949 DOI: 10.1364/OE.426006 Published: MAY 24 2021

Abstract: A large bandwidth and high-efficiency subwavelength quarter-wave plate (QWP) is an indispensable component of an integrated miniaturized optical system. The bandwidth of existing plasmonic quarter-wave plates with a transmission efficiency of more than 50% is less than 320 nm in the near-infrared band. In this paper, a metallic quarter-wave plate with a bandwidth of 600 nm (0.95-1.55 mu m) and an average transmittance of more than 70% has been designed and shows excellent potential to be used in miniaturized optical polarization detection systems and as an optical data storage device. For TE mode incident waves, this miniaturized optical element can be equivalent to a Fabry-Perot (FP) resonator. Meanwhile, for the TM mode incident wave, the transmission characteristics of this structure are controlled by gap surface plasmon polaritons (G-SPPs) existing in the symmetric metal/insulator/metal (MIM) configuration. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Accession Number: WOS:000654369300083

ISSN: 1094-4087

Full Text: https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-29-11-16939&id=451131