Enhanced Terahertz detection in self-switching diodes

I. Iniguez-de-la-Torre, J. Mateos, D. Pardo, A. M. Song, T. Gonzá lez

    Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

    Abstract

    In this work, by means of Monte Carlo simulations, we analyze the presence of a resonance in the DC current response of an asymmetric nonlinear nanodiode (called self-switching diode) to AC voltage excitations in the Terahertz range. The phenomenon, which takes place at room temperature, can be enhanced and tuned by the geometry of the device, being potentially useful for selective Terahertz detection. The resonance is linked to a noise mechanism: collective charge fluctuations in the space-charge region around the active channel of the device, which are visible both in noise and rectification. The enhancement of the DC current is attributed to the phase shift between the applied signal and the response of the charge around the channel near the vertical trenches, which controls the electron flow through the diode. Copyright © 2009 John Wiley & Sons, Ltd.
    Original languageEnglish
    Title of host publicationInternational Journal of Numerical Modelling: Electronic Networks, Devices and Fields|Int J Numer Modell Electron Networks Devices Fields
    PublisherJohn Wiley & Sons Ltd
    Pages301-314
    Number of pages13
    Volume23
    DOIs
    Publication statusPublished - Jul 2010
    Event7th Spanish Conference on Electron Devices - Univ Santiago de Compostelea, Santiago de Compostela, SPAIN
    Duration: 11 Feb 200913 Feb 2009
    http://www3.interscience.wiley.com/cgi-bin/fulltext/122677713/PDFSTART

    Conference

    Conference7th Spanish Conference on Electron Devices
    CityUniv Santiago de Compostelea, Santiago de Compostela, SPAIN
    Period11/02/0913/02/09
    Internet address

    Keywords

    • Monte Carlo simulation of nanodevices
    • Terahertz detectors

    Fingerprint

    Dive into the research topics of 'Enhanced Terahertz detection in self-switching diodes'. Together they form a unique fingerprint.

    Cite this