Optimization of Ultra-Thin Pulsed-DC Magnetron Sputtered Aluminum Films for the Technology of Hyperbolic Metamaterials
Robert Paweł Mroczyński , Daniel Iwanicki , Bartosz Fetliński , Monika Ożga , Michał Świniarski , Arkadiusz P. Gertych , Mariusz Zdrojek , Marek Godlewski
AbstractThe future applications of hyperbolic metamaterials demand stacks of materials with alternative ultra-thin conductive/dielectric films with good homogeneity of the thickness and reduced roughness level. In this work, the technology of pulsed-DC magnetron sputtering of aluminum was optimized using the Taguchi method in order to fabricate Al films with improved roughness level. The performed structural characterization proved the smaller Al domains and better homogeneity of the surface. The optimized process was used to fabricate a multilayer structure of Al/HfOx as the metamaterial media. The fabricated structures were optically characterized in the UV/VIS range. The presented findings demonstrated the tunability effect of the effective reflectance of the examined stacks. The presented results are promising for the future application of multilayer structures in novel photonic devices based on hyperbolic metamaterials.
|Journal series||Crystals, ISSN 2073-4352|
|ASJC Classification||; ; ;|
|Project||[TECHMATSTRATEG1/347012/3/NCBR/2017] Tunable hyperbolic metamaterials for the new generation of photonic devices. Project leader: Malinowski Michał,
, Phone: (+48) 22 234 7777, start date 01-12-2017, planned end date 30-11-2020, IMiO/2017/Techamat/1, Implemented
|Score||= 70.0, 13-08-2020, ArticleFromJournal|
|Publication indicators||= 0; = 1.0; : 2018 = 0.695; : 2018 = 2.061 (2) - 2018=2.086 (5)|
|Citation count*||1 (2020-09-11)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.