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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 229-232 |
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Sadeghi H, Soofi H. Design and modeling of tunable Absorber based on Graphene-Liquid Crystal hybrid structures. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :229-232
URL: http://opsi.ir/article-1-2019-en.html
URL: http://opsi.ir/article-1-2019-en.html
1- Faculty of Electrical and Computer Engineering, University of Tabriz
Abstract: (1517 Views)
In this article a tunable optical absorber based on hybrid graphene- liquid crystal structure is presented. In this structure, a silicon grating is employed to adjust the absorption wavelength to the communication range. Afterwards, applying voltage to the liquid crystal can fine tune the absorption to the desired wavelength. The presented absorber can effectively tune the absorption wavelength in a range of 1523 nm to 1574 nm which covers the entire C band plus a portion of the L band. It is worth noting that the presented absorber is ultra-narrow band having a FWHM of only 2.2 nm which makes it perfect for communication systems based on wavelength division multiplexing. The presented device can be utilized to design various devices such as photodetectors or modulators for optical communications.
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