{"680692":{"#nid":"680692","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Zhongdi Peng","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003EHeterogeneous Platforms for Ultra-Fast and Low-Power Active Integrated Photonic Structures\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr.\u0026nbsp;Adibi, Advisor\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. Ralph, Chair\u003C\/p\u003E\u003Cp\u003EDr. Klein\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe objective of the proposed research is to demonstrate the novel heterogeneous photonic platforms for ultra-fast and low-power active photonic devices, which are urgently needed for communication\/interconnection links and computing engines. I will first introduce a heterogeneous integration of the conventional CMOS-compatible material Si3N4 and the emerging electro-optic (EO) material lithium niobate (LiNbO3, LN), which aims to form an electro-optically active, ultra-low-loss, ultra-fast, and reconfigurable Si3N4-on-LNOI platform. In addition to the complete development of the material platform and fabrication processes, the EO-active devices are demonstrated on the heterogeneous platform, including the phase shifter, coupling modulator, and photonic crystal microring resonators (PhCR). Another complementary-metal-oxide-semiconductor (CMOS) photonic platform enabled by commercial foundries will then be introduced, which achieves large scalability and high energy efficiency with monolithic electro-photonic integration. Devices demonstration includes a microring-based transceiver as well as a cascaded microring transceiver tuned by the polysilicon heater. The heterogeneous integration is proven to bring various functionalities together to harness the best-suited properties, which is now widely applied in advanced photonics.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Heterogeneous Platforms for Ultra-Fast and Low-Power Active Integrated Photonic Structures"}],"uid":"28475","created_gmt":"2025-02-21 22:28:44","changed_gmt":"2025-02-21 22:30:13","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2025-02-26T11:00:00-05:00","event_time_end":"2025-02-26T13:00:00-05:00","event_time_end_last":"2025-02-26T13:00:00-05:00","gmt_time_start":"2025-02-26 16:00:00","gmt_time_end":"2025-02-26 18:00:00","gmt_time_end_last":"2025-02-26 18:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Room 509, TSRB","extras":[],"related_links":[{"url":"https:\/\/gatech.zoom.us\/j\/92441813495?pwd=nUgudnfIMkQB2SdXUXsAhKHup8maYU.1","title":"Zoom link"}],"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":""}}}