Layer-tunable third-harmonic generation in multilayer black phosphorus

Nathan Youngblood, Ruoming Peng, Andrei Nemilentsau, Tony Low, Mo Li

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Pages (from-to)8-14
Number of pages7
JournalACS Photonics
Volume4
Issue number1
DOIs
StatePublished - Jan 1 2017

Fingerprint

Harmonic generation
Phosphorus
phosphorus
harmonic generations
Multilayers
Phase matching
phase matching
infrared lasers
Band structure
depletion
Lasers
Observation
Polarization
harmonics
polarization

Keywords

  • Black phosphorus
  • Nonlinear optics
  • Third-harmonic generation
  • Two-dimensional materials

Cite this

Layer-tunable third-harmonic generation in multilayer black phosphorus. / Youngblood, Nathan; Peng, Ruoming; Nemilentsau, Andrei; Low, Tony; Li, Mo.

In: ACS Photonics, Vol. 4, No. 1, 01.01.2017, p. 8-14.

Research output: Contribution to journalArticle

Youngblood, Nathan ; Peng, Ruoming ; Nemilentsau, Andrei ; Low, Tony ; Li, Mo. / Layer-tunable third-harmonic generation in multilayer black phosphorus. In: ACS Photonics. 2017 ; Vol. 4, No. 1. pp. 8-14.
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