Proposing a THz refractive index sensor based on the excitation of SPPs with InSb cylinder

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Zamani Noughabi S.; Nooramin A.S.; Soleimani M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: AUT Journal of Electrical Engineering Year:2023 | Volume:55 | Issue:2 Page(s): 133-144

Download Full-Text

View:

Download:

Cites:

Information Journal Paper

Title

Proposing a THz refractive index sensor based on the excitation of SPPs with InSb cylinder

Author(s)

Zamani Noughabi S. | Nooramin A.S. | Soleimani M. | Issue Writer Certificate

Keywords

Absorber metamaterial

coaxial plasmonic resonator

InSb

surface plasmons

Abstract

A novel metamaterial absorber sensor has been proposed for refractive index measurement in the range of [1-2] for the THz frequency band. This structure is based on using a plasmonic coaxial resonator which is excited by an InSb cylinder. Surface Plasmon Polaritons (SPPs) are excited on the surface of the InSb cylinder due to an inward plane wave and propagate downward toward the cavity and thru it. Based on the radius and height of the InSb cylinder, the “high-absorption” and “high-quality factor” sensing performance is introduced and analyzed. It is shown that nearly 98% absorption can be achieved for all the range of refractive index [1-2] at f = 1.8622 THz and in the case of “high-quality factor”, absorption reaches nearly 100% for the refractive index range of [1.5-2]. Also, by changing the radius and height of the cavity, absorption can be changed. Furthermore, sensitivity (S), quality factor (Q-factor), and figure of merit (FoM) in the range of 166-672 GHz per refractive index unit (GHz/RIU), 69.1-118.7 and 10.2- 29.7 is achievable, respectively. A wide range of refractive index measurements besides superior sensing performance made this structure a good candidate for sensing applications such as medical and biological or environmental applications.

Multimedia

No record.

Cites

No record.

References

No record.

Cite

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans