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
OSA Recommended Articles
Emission of terahertz pulses from vanadium dioxide films undergoing metal–insulator phase transition

Mikhail Esaulkov, Petr Solyankin, Artem Sidorov, Lyubov Parshina, Artem Makarevich, Qi Jin, Qin Luo, Oleg Novodvorsky, Andrey Kaul, Elena Cherepetskaya, Alexander Shkurinov, Vladimir Makarov, and Xi-Cheng Zhang
Optica 2(9) 790-796 (2015)

Electrical control of terahertz nano antennas on VO2 thin film

Young-Gyun Jeong, Hannes Bernien, Ji-Soo Kyoung, Hyeong-Ryeol Park, Hyun-Sun Kim, Jae-Wook Choi, Bong-Jun Kim, Hyun-Tak Kim, Kwang Jun Ahn, and Dai-Sik Kim
Opt. Express 19(22) 21211-21215 (2011)

State conversion based on terahertz plasmonics with vanadium dioxide coating controlled by optical pumping

Fei Fan, Wen-Hao Gu, Sai Chen, Xiang-Hui Wang, and Sheng-Jiang Chang
Opt. Lett. 38(9) 1582-1584 (2013)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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

Metrics

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

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