Gate-tunable optical extinction of graphene nanoribbon nanoclusters

Erin Sheridan, Gang Li, Mamun Sarker, Shan Hao, Ki Tae Eom, Chang Beom Eom, Alexander Sinitskii, Patrick Irvin, Jeremy Levy

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


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.

Original languageEnglish (US)
Article number071101
JournalAPL Materials
Issue number7
StatePublished - Jul 1 2021

ASJC Scopus subject areas

  • General Materials Science
  • General Engineering


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