Tailoring Second-Harmonic Emission from (111)-GaAs Nanoantennas

Sautter JD, Xu L, Miroshnichenko AE, Lyseyych M, Volkoyskaya I, Smirnova DA, Camacho-Morales R, Kamali KZ, Karouta F, Vora K, Tan HH, Kauranen M, Staude I, Jagadish C, Neshev DN, Rahmani M (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Nano Letters American Chemical Society

Book Volume: 19

Pages Range: 3905-3911

Journal Issue: 6

DOI: 10.1021/acs.nanolett.9b01112

Abstract

Second-harmonic generation (SHG) in resonant dielectric Mie-scattering nanoparticles has been hailed as a powerful platform for nonlinear light sources. While bulk-SHG is suppressed in elemental semiconductors, for example, silicon and germanium due to their centrosymmetry, the group of zincblende III-V compound semiconductors, especially (100)-grown AlGaAs and GaAs, have recently been presented as promising alternatives. However, major obstacles to push the technology toward practical applications are the limited control over directionality of the SH emission and especially zero forward/backward radiation, resulting from the peculiar nature of the second-order nonlinear susceptibility of this otherwise highly promising group of semiconductors. Furthermore, the generated SH signal for (100)-GaAs nanoparticles depends strongly on the polarization of the pump. In this work, we provide both theoretically and experimentally a solution to these problems by presenting the first SHG nanoantennas made from (111)-GaAs embedded in a low index material. These nanoantennas show superior forward directionality compared to their (100)-counterparts. Most importantly, based on the special symmetry of the crystalline structure, it is possible to manipulate the SHG radiation pattern of the nanoantennas by changing the pump polarization without affecting the linear properties and the total nonlinear conversion efficiency, hence paving the way for efficient and flexible nonlinear beam-shaping devices.

Involved external institutions

Australian National University (ANU) AU Australia (AU) University of New South Wales (UNSW) AU Australia (AU) Russian Academy of Sciences / Росси́йская акаде́мия нау́к (RAS) RU Russian Federation (RU) University of Tampere (UTA) / Tampereen yliopisto (Tay) FI Finland (FI) Friedrich-Schiller-Universität Jena DE Germany (DE)

How to cite

APA:

Sautter, J.D., Xu, L., Miroshnichenko, A.E., Lyseyych, M., Volkoyskaya, I., Smirnova, D.A.,... Rahmani, M. (2019). Tailoring Second-Harmonic Emission from (111)-GaAs Nanoantennas. Nano Letters, 19(6), 3905-3911. https://doi.org/10.1021/acs.nanolett.9b01112

MLA:

Sautter, Juergen D., et al. "Tailoring Second-Harmonic Emission from (111)-GaAs Nanoantennas." Nano Letters 19.6 (2019): 3905-3911.

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