![]() For the simulations, a normal incident Gaussian wave was used, which propagated in the –z direction with the electric field polarized parallel to the (0,1) direction or in the (1,1) direction of the square lattice. Accuracy of the simulation was verified by first reproducing the spectra of the second figure in the reference authored by Wu et al. The simulations on the transmission or reflection spectra were performed with the finite-difference time-domain (FDTD) method, using an MIT open source software package MEEP. The parameters for the hole arrays were the same as those fabricated by this group in previous work, with a period of square lattice set to be 1528 nm a hole diameter of 889 nm and an AZO thickness of 117 nm. In this paper, the simulations were performed on a thin film of AZO patterned with cylindrical holes in a square lattice array. ![]() Phase change materials such as VO 2 and Ge 2Sb 2Te 5 (GST) can be used to meet the phase condition for the destructive interference required for TLA or used to achieve a tunable TLA. Although extra processing steps are needed for the fabrication of patterned dielectrics/metal film, the selection of the refractive index of the material for the realization of TLA in patterned dielectrics/metal film becomes less strict due to the coupling of structural resonance. The refractive index of the dielectric material in two-layer or three-layer dielectrics/metal stacks is carefully selected to meet the phase condition of destructive interference. Total light absorption (TLA) can be realized through the destructive interference of light reflected from the interface of multiple-layer materials or through the critical coupling of resonances. Total light absorption (or perfect absorption) with zero reflection and zero transmission in sub-wavelength thin layer stacks has been intensively studied for applications in metal coloring, photodetectors, solar energy harvesting, lasers and other areas. This work will contribute to the design principle for future device fabrication for TLA applications. Finally, electric field intensity distributions at specific wavelengths are computed to further prove the coupling of SPP with F-P resonance. It is observed in the simulations that post-fabrication tunability of the TLA wavelength is possible via the electrical tunability of the AZO. Additionally, it is shown that the replacement of silver by other, more cost-effective metals has no significance influence on the TLA condition. In order to achieve TLA, an increase in the refractive index of the spacer material leads to a decrease in the thickness of the spacer. Two types of coupling between SPP and F-P resonance are observed in the simulations. Firstly, we identified that the surface plasmon polariton (SPP) that will couple to the F-P resonance because of an SPP standing wave in the (1,0) direction of the square lattice. ![]() This paper presents finite-difference time-domain (FDTD) simulations on total light absorption (TLA) resulting from the coupling of a surface plasmon polariton (SPP) with Fabry-Pérot (F-P) resonance in a three-layer structure consisting of an AZO square lattice hole array, a spacer, and a layer of silver. If you encounter any problems reset the value to 1.Al-doped ZnO (AZO) can be used as an electrically tunable plasmonic material in the near infrared range. Please note that due to hard disk mechanics (when using HDDs) you can not set that number too high because otherwise this will cause a performance penalty (depending on your personal hardware). ![]() Run 2-8 tasks in parallel: Select the intended number from the pop up menu.“1 (Strictly Sequential)” will copy files in alphabetical order without regards to file size.“1 (Optimized, Recommended)” (default setting) will copy sequentially in alphabetical order while small files will be copied last to Optimize the copy process.Simply modify the value in «Number of parallel tasks» in order to be able to increase the number of simultaneous copy tasks in Silverstack. Therefore if you have not read the article about data-transfer performance and you are not familiar with it, then this is the best way to avoid frustration and weak performance. A slow destination (such as a USB2 drive) could result in a reduced overall performance. Please note that your destination(s) should provide the necessary bandwidth. In order to change the number of parallel jobs done by Silverstack you have to go to general preferences and modify the value in «Number of parallel jobs» (see preferences screenshot above).ĭo you want to tweak the copy performance by running multiple tasks in parallel? Do you have multiple copy jobs to be done simultaneously because you have more than one card-reader ?
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