Universal ultrafast detector for short optical pulses based on graphene

Published/Posted: October 23, 2015

Authors: Mittendorff, M.; Kamann, J.; Eroms, J.; Weiss, D.; Drexler, C.; Ganichev, S. D.; Kerbusch, J.; Erbe, A.; Suess, R. J.; Murphy, T. E.; Chatterjee, S.; Kolata, K.; Ohser, J.; König-Otto, J. C.; Schneider H.; Helm, M.; Winnerl, S.

DOI: 10.1364/OE.23.028728

Abstract: Graphene has unique optical and electronic properties that make it attractive as an active material for broadband ultrafast detection. We present here a graphene-based detector that shows 40-picosecond electrical rise time over a spectral range that spans nearly three orders of magnitude, from the visible to the far-infrared. The detector employs a large area graphene active region with interdigitated electrodes that are connected to a log-periodic antenna to improve the long-wavelength collection efficiency, and a silicon carbide substrate that is transparent throughout the visible regime. The detector exhibits a noise-equivalent power of approximately 100 µW/Hz^1/2 and is characterized at wavelengths from 780 nm to 500 µm.

Citation:
M. Mittendorff, J. Kamann, J. Eroms, D. Weiss, C. Drexler, S. D. Ganichev, J. Kerbusch, A. Erbe, R. J. Suess, T. E. Murphy, S. Chatterjee, K. Kolata, J. Ohser, J. C. König-Otto, H. Schneider, M. Helm and S. Winnerl, "Universal ultrafast detector for short optical pulses based on graphene", Opt. Express 23(22) 28728-28735 (2015)
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Manuscript: Mittendorff_OE_23_28728_2015.pdf

Posted in 2D Materials, Graphene, Terahertz