2 research outputs found
Fast MoTe<sub>2</sub> Waveguide Photodetector with High Sensitivity at Telecommunication Wavelengths
Two-dimensional
(2D) materials integrated with planar photonic
elements enable a new class of electro-optical components and hold
much promise for a novel 2D material integrated circuit technology.
Here, we present a few-layer MoTe<sub>2</sub> waveguide photodetector
that is operable across the entire O-band of the near-infrared optical
telecommunication spectral range. The device is realized in a two-terminal
in-plane electrode configuration without applying external gating.
It features a competitive photoresponsivity of 23 mA/W as well as
a low dark current, both of which lead to a highly sensitive photodetection
with a large dynamic range. Moreover, the design of the photodetector
exhibits a fast photoresponse with a bandwidth approaching 1 GHz,
outperforming prior TMDC-based photodetectors. Optical data experiments
proved the operation of our device at data rates of 1 Gbit/s, revealing
the applicability of integrating 2D materials for practical optical
data communication applications
Supplement 1: Silicon-plasmonic internal-photoemission detector for 40  Gbit/s data reception
Simulation, Device Fabrication and Experimental
Characterization Originally published in Optica on 20 July 2016 (optica-3-7-741