Beam steering with a nonlinear optical phased array antenna
arXiv:1905.09115 · doi:10.1021/acs.nanolett.9b02029
Abstract
Transition metal dichalcogenides (TMDCs) exhibit high second harmonic (SH) generation in the visible due to their non-centrosymmetric crystal structure in odd-layered form and direct bandgap transition when thinned down to a monolayer. In order to emit the SH radiation into a desired direction one requires a means to control the phase of the in-plane nonlinear polarization. Here, we couple the SH response of a monolayer MoS to an optical phased array antenna and demonstrate controllable steering of the nonlinear emission. By exploiting the intrinsic SH generation by the phased array antenna we achieve uniform emission efficiency into a broad angular range. Our work has relevance for novel optoelectronic applications, such as programmable optical interconnects and on-chip LIDAR.
arXiv comment8 pages,7 figures, including Methods
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Cited by in corpus (6)
- Parametric Nonlinear Optics with Layered Materials and Related Heterostructures
- Optical phased arrays for LIDAR: beam steering via tunable plasmonic metasurfaces
- On the performance of optical phased array technology for beam steering
- Molecular platform for frequency upconversion at the single-photon level
- TMDC Resonators for Second Harmonic Signal Enhancement
- Length-flexible strategies for efficient SERS performance in gold-nanorod-gapped nanoantennas