AI Article Synopsis
- The rise of two-dimensional transition metal dichalcogenide materials, like tungsten disulfide (WS), has led to significant advancements in valleytronics, where valley information is harnessed using light.
- Researchers showcase a method for valley-dependent light coupling using a plasmonic nanowire and WS layers, achieving a high coupling efficiency of 90 ± 1%.
- This work offers new ways to control and detect valley and spin information with precise optical techniques at the nanoscale, potentially enhancing future technological applications.
Article Abstract
The emergence of two-dimensional transition metal dichalcogenide materials has sparked intense activity in valleytronics, as their valley information can be encoded and detected with the spin angular momentum of light. We demonstrate the valley-dependent directional coupling of light using a plasmonic nanowire-tungsten disulfide (WS) layers system. We show that the valley pseudospin in WS couples to transverse optical spin of the same handedness with a directional coupling efficiency of 90 ± 1%. Our results provide a platform for controlling, detecting, and processing valley and spin information with precise optical control at the nanoscale.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1126/science.aan8010 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!