Design of Vanadium Dioxide-Based Plasmonic Modulator for Both TE and TM Modes
- Authors
- Choe, Jong-Ho; Kim, Jin Tae
- Issue Date
- 1-3월-2015
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Optical modulation; waveguide components; plasmonics; integrated optics; nanotechnology; vanadium dioxide
- Citation
- IEEE PHOTONICS TECHNOLOGY LETTERS, v.27, no.5, pp.514 - 517
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE PHOTONICS TECHNOLOGY LETTERS
- Volume
- 27
- Number
- 5
- Start Page
- 514
- End Page
- 517
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/94171
- DOI
- 10.1109/LPT.2014.2384020
- ISSN
- 1041-1135
- Abstract
- Based on vanadium dioxide (VO2) insulator-metal phase transition, a compact plasmonic modulator is designed for both transverse-electric (TE) and transverse-magnetic (TM) polarization modes. The device consists of a Si waveguide and a metal-oxide-semiconductor-type Si-SiO2-VO2-Cu hybrid plasmonic waveguide that is inserted into a Si waveguide. By electrically changing the phase of VO2 from an insulator to a metal, the guidance of the TE and TM modes along the device is greatly suppressed and, hence, we can obtain modulated optical signals. For a 500-nm-long plasmonic modulator operating at a 1.55-mu m wavelength, simulation shows an on/off extinction ratio of 3.9 dB for TE and of 8.7 dB for TM mode.
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