Abstract

We propose a semiconductor–graphene cylinder that can serve as a terahertz (THz) photonic crystal. In such a structure, graphene plays a role in achieving a strong mismatch of the dielectric constant at the semiconductor–graphene interface due to its two-dimensional nature and relatively low value of the dielectric constant. We find that when the radius of the outer semiconductor layer is about ρ1100μm, the frequencies of the photonic modes are within the THz bandwidth and they can be efficiently tuned via varying ρ1. Furthermore, the dispersion relation of the photonic modes shows that a semiconductor–graphene cylinder is of excellent light transport properties, which can be utilized for the THz waveguide. This study is pertinent to the application of graphene as THz photonic devices.

© 2012 Optical Society of America

Full Article  |  PDF Article
Related Articles
Analysis of surface modes in photonic crystals by a plane-wave transfer-matrix method

Ming Che and Zhi-Yuan Li
J. Opt. Soc. Am. A 25(9) 2177-2184 (2008)

High-efficiency antireflection structures for terahertz self-collimating photonic crystals

Jong-Moon Park, Sun-Goo Lee, Hae Yong Park, Jae-Eun Kim, and Myung-Hyun Lee
J. Opt. Soc. Am. B 26(11) 1967-1974 (2009)

Mode analysis of two-dimensional photonic crystal terahertz lasers with gain/loss dispersion characteristics

Shinichi Takigawa and Susumu Noda
J. Opt. Soc. Am. B 27(12) 2556-2567 (2010)

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 (4)

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 (5)

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