Title :
Spatially resolved on-chip picosecond pulse detection using graphene
Author :
N. Hunter;A. S. Mayorov;C. D. Wood;C. Russell;M. C. Rosamond;L. H. Li;E. H. Linfield;A. G. Davies;J. E. Cunningham
Author_Institution :
School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
Abstract :
We present an on-chip time domain terahertz (TD-THz) system in which picosecond pulses are generated in low-temperature-grown gallium arsenide (LT-GaAs) and detected in graphene. The detected pulses were found to vary in amplitude, full width at half maximum (FWHM), and DC offset when sampled optically at different locations along a 50-μm-long graphene photoconductive (PC) detector. The results demonstrate the importance of detection location and switch design in graphene-based on-chip PC detectors.
Keywords :
"Graphene","Optical switches","Probes","Laser beams","System-on-chip","Reflection"
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
Electronic_ISBN :
2162-2035
DOI :
10.1109/IRMMW-THz.2015.7327831
