Gate-tunable optical extinction of graphene nanoribbon nanoclustersopen access
- Authors
- Sheridan, Erin; Li, Gang; Sarker, Mamun; Hao, Shan; Eom, Ki-Tae; Eom, Chang-Beom; Sinitskii, Alexander; Irvin, Patrick; Levy, Jeremy
- Issue Date
- Jul-2021
- Publisher
- AMER INST PHYSICS
- Citation
- APL MATERIALS, v.9, no.7
- Journal Title
- APL MATERIALS
- Volume
- 9
- Number
- 7
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/89536
- DOI
- 10.1063/5.0048795
- ISSN
- 2166-532X
2166-532X
- Abstract
- We investigate the optical response of graphene nanoribbons (GNRs) using the broadband nonlinear generation and detection capabilities of nanoscale junctions created at the LaAlO3/SrTiO3 interface. GNR nanoclusters measured to be as small as 1-2 GNRs in size are deposited on the LaAlO3 surface with an atomic force microscope tip. Time-resolved nonlinear optical probes of GNR nanoclusters reveal a strong, gate-tunable second and third harmonic response, as well as strong extinction of visible to near-infrared light at distinct wavelengths, similar to previous reports with graphene.
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