DESIGN OF A COMPACT DEVICE FOR IMPLEMENTING TUNABLE MULTIPLE PLASMON-INDUCED TRANSPARENCIES

• Main Authors: Xie, Yiyuan, Zhu, Yunchao, Chai, Junxiong, Ye, Yichen, Zhang, Liangyi
• Format: Patent
• Language: English
• Published: 18.07.2019
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; NANOTECHNOLOGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PERFORMING OPERATIONS; PHYSICS; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING

Many potential applications can be implemented based on the Plasmon-induced transparency (PIT) effect. In this patent, tunable multi-PIT phenomena are achieved in a compact plasmonic structure. The proposed structure mainly consists of dual stub cavities coupled with Fabry-perot resonators, respectively, as shown in Fig. 1. According to the temporal coupled-mode theory, the formation mechanism of different transparent windows is explained detailedly. In addition, we found that the structural parameters have an important influence on the transmission characteristics. Ultimately, According to the formation mechanism of different PIT windows, we can individually manipulate transmission characteristics at different PIT windows including the wavelength and transmission of transparency-peak, which are investigated numerically by using the FDTD method. This invention have many potential applications in the area of highly integrated optical data storage. Fig. 1 S+o A i a r2 t2 st S. Silver 2 Air Fig. 2