Cart (Loading....) | Create Account
Close category search window
 

Size Dependence of Terahertz Electromagnetic Wave Radiation from Intrinsic Josephson Junctions

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Oikawa, D. ; Dept. of Innovation Syst. Eng., Utsunomiya Univ., Utsunomiya, Japan ; Irie, A. ; Yamaki, K.

We report the experimental results of in situ detection of terahertz radiation from large stacks with a few hundreds of intrinsic Josephson junctions (IJJs) using a high sensitivity detector composed of a small IJJ mesa. The dimensions of the fabricated IJJ oscillators are 290 μm in length, 50, 70, and 90 μm in width and between 255 and 600 nm in height. The current-voltage characteristics of the oscillators are strongly influenced by self-heating and show negative resistance. We have successfully observed terahertz radiation from stacks with 170-400 IJJs. We find that the strong emission occurs when the oscillator is biased in the negative resistance region on the outermost quasi-particle branch. The characteristic velocity estimated from the emission voltage is consistent with that of the in-phase mode. This implies that the observed emission is related to the in-phase cavity resonance. Furthermore, we find that for a smaller number of junctions the emission corresponds to higher harmonics of the cavity resonance.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:23 ,  Issue: 3 )

Date of Publication:

June 2013

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.