Integrating plasmonic metals and 2D transition metal dichalcogenides for enhanced nonlinear frequency conversion

Gregory T. Forcherio; Luigi Bonacina; Jérémy Riporto; Yannick Mugnier; R. Le Dantec; Jeremy R. Dunklin; Mourad Benamara; D. Keith Roper

doi:10.1117/12.2321047

7 September 2018 Integrating plasmonic metals and 2D transition metal dichalcogenides for enhanced nonlinear frequency conversion

Gregory T. Forcherio, Luigi Bonacina, Jérémy Riporto, Yannick Mugnier, R. Le Dantec, Jeremy R. Dunklin, Mourad Benamara, D. Keith Roper

Author Affiliations +

Proceedings Volume 10724, Physical Chemistry of Semiconductor Materials and Interfaces XVII; 1072413 (2018) https://doi.org/10.1117/12.2321047
Event: SPIE Nanoscience + Engineering, 2018, San Diego, California, United States

Abstract

Surface plasmon resonant nanoantennas can confine incident energy onto two-dimensional (2D) transition metal dichalcogenides (TMD) to enhance efficiency of harmonic conversion to higher energies, which is otherwise limited by the intrinsic Å-scale interaction length. Second harmonic generation (SHG) from nanoantenna-decorated 2D TMD was heuristically examined with hyper Rayleigh scattering (HRS), multi-photon microscopy, electron energy loss spectroscopy (EELS), and discrete dipole computation. HRS experimentally quantified the frequency dependence of the second-order nonlinear susceptibility, χ ⁽²⁾ , for liquid-exfoliated WS₂. Measured χ⁽²⁾ fell within 21% of independent density functional theory (DFT) calculations, overcoming the known 100-1000x overestimation of microscopy approaches. EELS supported design of nanoantennas for integration with TMD. Overall SHG conversion efficiencies from chemical vapor-deposited (CVD) 4×10⁵ nm² MoS₂ crystals on silicon dioxide were enhanced up to 0.025 % W^-1 in the presence of by single 150 nm Au nanoshell monomers and dimers, ostensibly due to augmented local plasmonic fields.

Conference Presentation

Citation Download Citation

Gregory T. Forcherio, Luigi Bonacina, Jérémy Riporto, Yannick Mugnier, R. Le Dantec, Jeremy R. Dunklin, Mourad Benamara, and D. Keith Roper "Integrating plasmonic metals and 2D transition metal dichalcogenides for enhanced nonlinear frequency conversion", Proc. SPIE 10724, Physical Chemistry of Semiconductor Materials and Interfaces XVII, 1072413 (7 September 2018); https://doi.org/10.1117/12.2321047

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available