Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-27T02:26:34.604Z Has data issue: false hasContentIssue false

Indium Antimonide (InSb) Cavity Resonators based on Planar Plasmonic Terahertz Waveguide

Published online by Cambridge University Press:  05 August 2013

Ranjana J. Shourie*
Affiliation:
Optoelectronics Laboratory, Department of Physics, NITK Surathkal, Mangalore-575025Karnataka INDIA.
M. N. Satyanarayan*
Affiliation:
Optoelectronics Laboratory, Department of Physics, NITK Surathkal, Mangalore-575025Karnataka INDIA.
G. Umesh*
Affiliation:
Optoelectronics Laboratory, Department of Physics, NITK Surathkal, Mangalore-575025Karnataka INDIA.
Get access

Abstract

We present the studies of Terahertz (THz) Semiconductor-Insulator-Semiconductor (SIS) Planar Plasmonic waveguide of Indium Antimonide (InSb) with cavities along the waveguide acting as resonator. The Surface Plasmon Polariton (SPP) modes were confined in the SI interface and resonance behavior and filtering functionality of the device were demonstrated. The transmission characteristic of the structure depends on the interference effects between the SPP mode passing through the cavity and the one returning from the cavity. These effects were observed by studying the transmission from the SIS waveguide as a function of frequency and cavity length and proving analytically using the analogy with microwave transmission line network. Furthermore, we present the SIS cavity resonator’s transmission characteristics which vary with changes in the dielectric constant of the insulator region. Such a study was proposed to incorporate in the structure for sensing of biomolecules in THz region.

Type
Articles
Copyright
Copyright © Materials Research Society 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Gramotnev, D.K. et al. ., Nature Photonics, 4, 2010, 8391, 2010.CrossRefGoogle Scholar
Ozbay, E., Science, vol. 311 January, pp. 189193, 2006.CrossRefGoogle Scholar
Van Exter, M et al. ., Physical review. B, Condensed matter, 41, 17, 214012149, 1990 CrossRefGoogle Scholar
Giannini, Vincenzo, et al. ., Opt. Express, 18, 27972807, 2010 CrossRefGoogle Scholar
Matsuzaki, Y. et al. .,Opt. Express, 16, 1631416325, 2008.CrossRefGoogle Scholar
Pannipitiya, Asanka et al. .,Opt. Express ,18, 61916204, 2010.CrossRefGoogle Scholar