Gate-tunable optical extinction of graphene nanoribbon nanoclusters
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 01, 2021
- Source ID
- 10.1063/5.0048795
Entities
People
- Alexander Sinitskii
- Chang-Beom Eom
- Erin Sheridan
- Gang Li
- Jeremy Levy
- Kitae Eom
- Mamun Sarker
- Patrick Irvin
- Shan Hao
Organizations
- Gordon and Betty Moore Foundation
- National Science Foundation
- Office of Naval Research
- Pittsburgh Quantum Institute
- University of Nebraska–Lincoln
- University of Pittsburgh
- University of Wisconsin–Madison