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

Terahertz modulator based on insulator–metal transition in photonic crystal waveguide

Not Accessible

Your library or personal account may give you access

Abstract

A terahertz modulator based on the insulator–metal transition (IMT) in a photonic crystal waveguide (PCW) coated by vanadium dioxide (VO2) film is proposed. The numerical simulations show that a dielectric state and a metallic state with quite different photonic band structures and transmission properties in the proposed PCW are reciprocally converted because of the IMT of VO2, and the pass-bands of this PCW are greatly shifted from 0.68 to 0.8 and 1.02 to 1.25 THz to 0.8–1.45 THz. This PCW significantly enhances the modulation depth and sensitivity compared with bare VO2 film. Extensive investigation demonstrates that the thickness of VO2 film greatly affects the IMT process in the PCW, and limits the ultimate modulation depth of the device. The proposed modulation scheme will be of great significance for potential THz applications.

©2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Thermally switchable terahertz wavefront metasurface modulators based on the insulator-to-metal transition of vanadium dioxide

Teng Wang, Jinwen He, Jinying Guo, Xinke Wang, Shengfei Feng, Florian Kuhl, Martin Becker, Angelika Polity, Peter J. Klar, and Yan Zhang
Opt. Express 27(15) 20347-20357 (2019)

Impact of the uniaxial strain on terahertz modulation characteristics in flexible epitaxial VO2 film across the phase transition

Xue Chang, Jiang Li, Jian Mu, Chun-Hao Ma, Wanxia Huang, Hong-Fu Zhu, Qiao Liu, Liang-Hui Du, Sen-Cheng Zhong, Zhao-Hui Zhai, Sujit Das, Yen-Lin Huang, Gang-Bei Zhu, Li-Guo Zhu, and Qiwu Shi
Opt. Express 31(8) 13243-13254 (2023)

Effect of substrate orientation on terahertz optical transmission through VO2 thin films and application to functional antireflection coatings

Yanhan Zhu, Yong Zhao, Mark Holtz, Zhaoyang Fan, and Ayrton A. Bernussi
J. Opt. Soc. Am. B 29(9) 2373-2378 (2012)

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 (10)

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 (6)

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