Title :
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
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;
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
DOI :
10.1109/ICTON.2010.5549011
