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Ph.D. Proposal Oral Exam - Congshan Wan
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Title: Optical Coupler Design and Experimental Demonstration for 2.5D/3D Heterogeneous Integrated Electronics
Committee:
Dr. Bakir, Advisor
Dr. Gaylord, Co-Advisor
Dr. Ralph, Chair
Dr. Klein
Abstract:
The objective of the proposed research is to theoretically design and experimentally demonstrate optical couplers for 2.5D/3D heterogeneous integrated electronics. In the first part, a new concept, the "equivalent index slab (EIS)" method, is proposed to extend the application of the rigorous coupled-wave analysis (RCWA) to the rectangular grating diffraction phenomena involving surface waves. The RCWA-EIS method can be applied to optimize rectangular grating couplers with arbitrary profiles and to analyze the effects of angular misalignments on the coupling efficiency. In the second part, a fundamentally new coupling structure, the grating-assisted-cylindrical-resonant-cavities (GARC) interlayer coupler, is introduced. Based on cylindrical resonant cavities, the GARC couplers exhibit wider spectral bandwidth and higher coupling efficiency, which are promising alternatives to the conventional couplers.
Status
- Workflow Status:Published
- Created By:Daniela Staiculescu
- Created:04/12/2018
- Modified By:Daniela Staiculescu
- Modified:04/12/2018
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