Terahertz Harmonic Generation from Graphite Pencil Drawings

Author:

Arshad Atiqa1ORCID,Koyun Hatice Nur23ORCID,Salikhov Ruslan2,Gensch Michael45,Ilyakov Igor1,Ponomaryov Alexey1,Prajapati Gulloo Lal1,de Oliveira Thales V. A. G.1,Mavridou Kalliopi2,Lindner Jürgen2,Deinert Jan-Christoph1,Ünlü Cumhur Gökhan23,Kovalev Sergey1ORCID

Affiliation:

1. Institute of Radiation Physics Helmholtz-Zentrum Dresden-Rossendorf 01328 Dresden Germany

2. Institute of Ion Beam Physics and Materials Research Helmholtz-Zentrum Dresden-Rossendorf 01328 Dresden Germany

3. Department of Biomedical Engineering Pamukkale University 20160 Denizli Turkey

4. Institut für Optik und Atomare Physik Technische Universität Berlin Strßae des 17. Juni 135 10623 Berlin Germany

5. DLR - Institute of Optical Sensor Systems Rutherfordstr. 2 12489 Berlin Germany

Abstract

The third harmonic generation (THG) of graphite layers on paper substrate upon excitation with intense (up to 100 kV cm−1) narrowband terahertz (THz) pulses is studied. Highest THG efficiencies are comparable with those of chemical vapor deposition‐grown single‐layer graphene. Samples are hand drawn, using commercially available pencils. The THG response shows high sensitivity regarding the hatching direction relative to the THz polarization orientation. Using Raman spectroscopy, the occurrence of graphene‐like structures in the samples is confirmed. The findings demonstrate the feasibility of virtually no‐cost and easy‐to‐fabricate materials for THz nonlinear optics.

Publisher

Wiley

Subject

Pharmacology (medical),Complementary and alternative medicine,Pharmaceutical Science

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