Photonic circuits, operating at hundreds of THz frequencies, have been suggested as a possible solution to overcome the GHz-limited processing and clock-synchronization speeds in nowadays electronic circuits, however, at the prize of rather bulky, diffraction-limited feature sizes. To realize photonic elements matching the lateral sizes of state-of-the-art electronics (<50), the one and maybe only approach is the use of excitations in nano-engineered metals – a rapidly growing research field known as nano-plasmonics. We will integrate lithographically defined, optically active, and electrically controllable nanoscale components into state-of-the-art silicon photodetectors. The optically active parts are two-dimensional, atomically thin semiconductor crystals which will allow us to generate, control, and detect optical signals on a single chip. For the controlled detection, the two-dimensional crystals are embedded as an electrode of an industrial photodiode. Plasmonic circuits shall guide and distribute the signals between the on-chip generation and detection on sub-wavelength scale channels. We envision the potential of two-dimensional crystals and plasmonic circuits for novel optoelectronic applications in industrial silicon electronics with superior performance according to high operating speeds, low driving voltages, low power consumption, and compact sizes.
J. Klein, A. Kuc, A. Nolinder, M. Altzschner, J. Wierzbowski, F. Sigger, F. Kreupl, J.J. Finley, U. Wurstbauer, A. W. Holleitner, and M. Kaniber : "Helium Ion Modified Luminescence and Robust Valley Polarization of Atomically Thin MoS2", 2018.
J. Wierzbowski, J. Klein, F. Sigger, C. Straubinger, M. Kremser, T. Taniguchi, K. Watanabe, U. Wurstbauer, A. W. Holleitner, M. Kaniber, K. Müller and J. J. Finley: " Direct exciton emission from atomically thin transition metal dichalcogenide heterostructures near the lifetime limit", 2017.
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J. Klein, J. Wierzbowski, A. Steinhoff, M. Florian, M. Rösner, F. Heimbach, K. Mueller, F. Jahnke, T. Wehling, J. Finley, M. Kaniber: "Electric-Field Switchable Second-Harmonic Generation in Bilayer MoS2 by Inversion Symmetry Breaking", 2017.
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