Broadband terahertz modulation using subwavelength metallic slit arrays

Author

Zarei, Sanaz ; Jarrahi, Mona

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA

fYear

2010

Firstpage

1

Lastpage

3

Abstract

Broadband modulation of freely propagating terahertz waves at room temperature is demonstrated using subwavelength metallic slit arrays. These devices enable the control of the extraordinary terahertz transmission through the metallic films by changing the geometrical parameters of the arrays. Our designs achieve an intensity modulation depth of 65% and modulation bandwidth of 2 THz. Implementation of these devices with micro-electro-mechanical fabrication techniques can led to very high modulation speeds.

Keywords

modulation; submillimetre wave propagation; bandwidth 2 THz; boadband terahertz modulation; geometrical parameters; metallic films; micro-electro-mechanical fabrication techniques; subwavelength metallic slit arrays; terahertz transmission; Intensity modulation; Metamaterials; Optical modulation; Optical resonators; Semiconductor materials; Submillimeter wave propagation; Submillimeter wave technology; Temperature; Metamaterials; Modulation depth; Subwavelength metallic slit arrays; Terahertz modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2010 12th International Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-7799-9

Electronic_ISBN

978-1-4244-7797-5

Type

conf

DOI

10.1109/ICTON.2010.5549011

Filename

5549011