Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Electrical tunability due to coalescence of exceptional points in parity-time symmetric waveguides

Not Accessible

Your library or personal account may give you access

Abstract

We demonstrate theoretically the electric tunability due to the coalescence of exceptional points in PT-symmetric waveguides bounded by imperfect conductive layers. Owing to the competition effect of multimode interaction, multiple exceptional points and PT phase transitions could be attained in such a simple system, and their occurrences are strongly dependent on the boundary conductive layers. When the conductive layers become very thin, it is found that the oblique transmittance and reflectance of the same system can be tuned between zero and one by a small change in the carrier density. The results may provide an effective method for fast tuning and modulation of optical signals through electrical gating.

© 2017 Optical Society of America

Full Article  |  PDF Article
More Like This
Parity-time-symmetric coupled microring lasers operating around an exceptional point

H. Hodaei, M. A. Miri, A. U. Hassan, W. E. Hayenga, M. Heinrich, D. N. Christodoulides, and M. Khajavikhan
Opt. Lett. 40(21) 4955-4958 (2015)

Detecting topological exceptional points in a parity-time symmetric system with cold atoms

Jian Xu, Yan-Xiong Du, Wei Huang, and Dan-Wei Zhang
Opt. Express 25(14) 15786-15795 (2017)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved