Layer-Tunable Third-Harmonic Generation in Multilayer Black Phosphorus

Black phosphorus has been the subject of growing interest due to its unique band structure that is both layer dependent and anisotropic. While many have studied the linear optical response of black phosphorus, the nonlinear response has remained relatively unexplored. Here we report on the observati...

Full description

Saved in:
Bibliographic Details
Published inACS photonics Vol. 4; no. 1; pp. 8 - 14
Main Authors Youngblood, Nathan, Peng, Ruoming, Nemilentsau, Andrei, Low, Tony, Li, Mo
Format Journal Article
LanguageEnglish
Published American Chemical Society 18.01.2017
Subjects
nonlinear optics
two-dimensional materials
black phosphorus
third-harmonic generation
Online AccessGet full text

Cover

More Information
Summary:Black phosphorus has been the subject of growing interest due to its unique band structure that is both layer dependent and anisotropic. While many have studied the linear optical response of black phosphorus, the nonlinear response has remained relatively unexplored. Here we report on the observation of third-harmonic generation in black phosphorus using an ultrafast near-IR laser and measure χ(3) experimentally for the first time. It was found that the third-harmonic emission is highly anisotropic, dependent on the incident polarization, and varies strongly with the number of layers present due to signal depletion and phase-matching conditions.
ISSN:2330-4022
2330-4022
DOI:10.1021/acsphotonics.6b00639