Actively tunable photonic crystal-based switch via plasmon-analog of index enhancement

YÜCE E., Artvin Z., ŞAHİN R., BEK A., TAŞGIN M. E.

APPLIED PHYSICS LETTERS, vol.119, no.21, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 119 Issue: 21
  • Publication Date: 2021
  • Doi Number: 10.1063/5.0071984
  • Journal Name: APPLIED PHYSICS LETTERS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Applied Science & Technology Source, Chemical Abstracts Core, Computer & Applied Sciences, INSPEC, DIALNET
  • Hacettepe University Affiliated: Yes

Abstract

We propose a miniaturized photonic switch, which utilizes (recently discovered) plasmon analog of index enhancement. An index is tuned via a control (auxiliary) pulse. The operation principle of the proposed device, composed of a few layers of nanorod dimers, is different than the conventional photonic switches. In the proposed device, a stop band is created at the desired frequency determined by the control pulse frequency. Calculated modulation depths are quite large, and response time is determined by the plasmon lifetime. The method we propose here is based on linear operation that requires low power and has very small foot-print that satisfies the major needs to be the choice of a switching scheme for integrated optics.