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Numerical Study on the Characteristics of Metal Insulator Metal Diode Integrated with Spiral Optical Antenna

Yang, Zhijun
http://rave.ohiolink.edu/etdc/view?acc_num=dayton1386242290

Abstract Details

2013, Master of Science (M.S.), University of Dayton, Electro-Optics.
Metal-insulator-metal (MIM) diode structures attract increasing interests in many technical areas including the solar cell technologies because of their capabilities to directly convert optical energy into electric current. During the process of energy transfer, surface plasmon polaritons (SPPs) play an important role due to their intriguing properties such as high local field enhancement and short effective wavelength. As an important figure of merit, the field enhancement arising from the SPPs excitation is limited by the relatively large mode volume in the traditional MIM structure. A potential way to improve the field enhancement factor is to introduce an optical antenna in the design of MIM diode structure to efficiently couple the energy of free-space radiation into a confined region of subwavelength size with highly enhanced field. In this thesis, I present the numerical studies on the characteristics of a novel device design that integrates MIM structure with a spiral slot optical antenna. As a spin sensitive structure, the response of the spiral slot antenna strongly depends on the optical spin state of the illumination. Three-dimensional finite element method model has been built to numerically simulate the performance of the proposed structure. Modeling results show that this hybrid structure has the ability to achieve both extremely high field enhancement and circular polarization extinction ratio simultaneously. A field enhancement of 150 and circular polarization extinction ratio of 200 can be obtained with this design. Such a device may find useful applications in polarimetric imaging and remote sensing.
Qiwen Zhan (Advisor)
Partha Banerjee (Committee Member)
Mikhail Vorontsov (Committee Member)
52 p.
Electrical Engineering; Optics
MIM; spiral optical antenna; field enhancement; circular extinction ratio

Recommended Citations

Citations

  • Yang, Z. (2013). Numerical Study on the Characteristics of Metal Insulator Metal Diode Integrated with Spiral Optical Antenna [Master's thesis, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1386242290

    APA Style (7th edition)

  • Yang, Zhijun. Numerical Study on the Characteristics of Metal Insulator Metal Diode Integrated with Spiral Optical Antenna. 2013. University of Dayton, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton1386242290.

    MLA Style (8th edition)

  • Yang, Zhijun. "Numerical Study on the Characteristics of Metal Insulator Metal Diode Integrated with Spiral Optical Antenna." Master's thesis, University of Dayton, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1386242290

    Chicago Manual of Style (17th edition)

dayton1386242290
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© 2013, all rights reserved.
This open access ETD is published by University of Dayton and OhioLINK.