{"605053":{"#nid":"605053","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Congshan Wan","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003EOptical Coupler Design and Experimental Demonstration for 2.5D\/3D Heterogeneous Integrated Electronics\u003C\/em\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ECommittee:\u0026nbsp; \u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Bakir, Advisor\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Gaylord, Co-Advisor\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Ralph, Chair\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Klein\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbstract: \u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThe 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 \u0026quot;equivalent index slab (EIS)\u0026quot; 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.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Optical Coupler Design and Experimental Demonstration for 2.5D\/3D Heterogeneous Integrated Electronics"}],"uid":"28475","created_gmt":"2018-04-12 21:33:01","changed_gmt":"2018-04-12 21:33:01","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2018-04-25T13:00:00-04:00","event_time_end":"2018-04-25T15:00:00-04:00","event_time_end_last":"2018-04-25T15:00:00-04:00","gmt_time_start":"2018-04-25 17:00:00","gmt_time_end":"2018-04-25 19:00:00","gmt_time_end_last":"2018-04-25 19:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}