Materials, Photonic Devices, and Sensors

Ultrashort hybrid plasmonic transverse electric pass polarizer for silicon-on-insulator platform

[+] Author Affiliations
Mohamed Farhat O. Hameed

Centre for Photonics and Smart Materials, Zewail City of Science and Technology, Giza, Egypt

Mansoura University, Mathematic and Engineering Physics Department, Mansoura, Egypt

Reham Zaghloul

Centre for Photonics and Smart Materials, Zewail City of Science and Technology, Giza, Egypt

Shaimaa I. Azzam, Salah S. A. Obayya

Centre for Photonics and Smart Materials, Zewail City of Science and Technology, Giza, Egypt

Mansoura University, Electronic and Communication Engineering Department, Mansoura, Egypt

Opt. Eng. 56(1), 017107 (Jan 24, 2017). doi:10.1117/1.OE.56.1.017107
History: Received November 1, 2016; Accepted December 27, 2016
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Abstract.  A design of a transverse electric (TE)-pass polarizer based on hybrid plasmonic silicon-on-insulator (SOI) platform is reported and analyzed using full vectorial finite element method. The proposed design has gold nanorods that are injected into the silicon dioxide substrate to tolerate the function of the device, and hence the required polarizing state can be obtained. Detailed design principle is presented, taking advantage of the distinct confinements of the TE and transverse magnetic modes in the core region and their coupling with the surface plasmon modes around the metallic nanorods. According to the positions of the gold nanorods, the suggested plasmonic SOI can be used as a TE-pass polarizer with a compact device length of 1.85  μm with 0.1639 dB insertion losses and extinction ratio of 14.58 dB at wavelength of 1.55  μm. The optimized geometrical parameters offer 3 orders of magnitude smaller than similar devices previously demonstrated on the SOI platform. The proposed design has advantages in terms of simplicity and compactness, which makes it a good candidate to be used in integrated silicon photonics. Further, the compact device size and good performance could provide a simple yet satisfactory solution to the polarization-dependent performance drawback of the silicon photonics devices on the SOI platform.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Mohamed Farhat O. Hameed ; Reham Zaghloul ; Shaimaa I. Azzam and Salah S. A. Obayya
"Ultrashort hybrid plasmonic transverse electric pass polarizer for silicon-on-insulator platform", Opt. Eng. 56(1), 017107 (Jan 24, 2017). ; http://dx.doi.org/10.1117/1.OE.56.1.017107


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