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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 22 — Nov. 4, 2013
  • pp: 27326–27337

Towards CMOS-compatible nanophotonics: Ultra-compact modulators using alternative plasmonic materials

Viktoriia E. Babicheva, Nathaniel Kinsey, Gururaj V. Naik, Marcello Ferrera, Andrei V. Lavrinenko, Vladimir M. Shalaev, and Alexandra Boltasseva  »View Author Affiliations


Optics Express, Vol. 21, Issue 22, pp. 27326-27337 (2013)
http://dx.doi.org/10.1364/OE.21.027326


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Abstract

We propose several planar layouts of ultra-compact plasmonic modulators that utilize alternative plasmonic materials such as transparent conducting oxides and titanium nitride. The modulation is achieved by tuning the carrier concentration in a transparent conducting oxide layer into and out of the plasmon resonance with an applied electric field. The resonance significantly increases the absorption coefficient of the modulator, which enables larger modulation depth. We show that an extinction ratio of 46 dB/µm can be achieved, allowing for a 3-dB modulation depth in much less than one micron at the telecommunication wavelength. Our multilayer structures can be integrated with existing plasmonic and photonic waveguides as well as novel semiconductor-based hybrid photonic/electronic circuits.

© 2013 Optical Society of America

OCIS Codes
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons
(250.7360) Optoelectronics : Waveguide modulators
(250.5403) Optoelectronics : Plasmonics
(250.4110) Optoelectronics : Modulators

ToC Category:
Plasmonics

History
Original Manuscript: July 26, 2013
Revised Manuscript: October 17, 2013
Manuscript Accepted: October 18, 2013
Published: November 4, 2013

Virtual Issues
Surface Plasmon Photonics (2013) Optics Express

Citation
Viktoriia E. Babicheva, Nathaniel Kinsey, Gururaj V. Naik, Marcello Ferrera, Andrei V. Lavrinenko, Vladimir M. Shalaev, and Alexandra Boltasseva, "Towards CMOS-compatible nanophotonics: Ultra-compact modulators using alternative plasmonic materials," Opt. Express 21, 27326-27337 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-22-27326


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