Spontaneous growth of polarizing refractory metal 'nano-fins'
| Autor: | Matthew D. Arnold, Michael B. Cortie, Matthew C. Tai, Angus Gentle |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Nanostructure Bioengineering 02 engineering and technology 01 natural sciences 7. Clean energy law.invention law 0103 physical sciences Nano General Materials Science Electrical and Electronic Engineering Nanoscience & Nanotechnology Polarization (electrochemistry) 010302 applied physics Liquid-crystal display Extinction ratio business.industry Mechanical Engineering Refractory metals General Chemistry Polarizer 021001 nanoscience & nanotechnology Mechanics of Materials Extinction (optical mineralogy) Optoelectronics 0210 nano-technology business |
| Popis: | © 2018 IOP Publishing Ltd. Traditional polymer polarizers degrade in harsh environments and at high temperatures, reducing the polarization effect. In contrast, polarizers produced with refractory metals have vastly improved thermal stability and resistance to harsh environments but are expensive to fabricate. Here we demonstrate prototype refractory metal wire grid polarizers produced by co-sputtering molybdenum and aluminum under specific conditions. Removal of the aluminum through selective dissolution enables the nanostructure array to transmit light. The polarization spans 500-1100 nm and the extinction ratio significantly increases to >100. Possessing broadband polarization and sufficient extinction ratios, the new polarizing film has potential applications in coatings for sunglasses, windows, pyrometers, scientific instruments, and LCD panels. |
| Databáze: | OpenAIRE |
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