{ "151529-21911692": { "datetime_modified":"20260903T142239", "datetime_start":"20260915T160000", "datetime_end":"20260915T170000", "has_end_time":1, "date_start":"2026-09-15", "date_end":"2026-09-15", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"CM-AMO Seminar | Revealing Strain and Disorder in Transition-Metal Dichalcogenides Using Hyperspectral Photoluminescence Imaging", "occurrence_title":"", "combined_title":"CM-AMO Seminar | Revealing Strain and Disorder in Transition-Metal Dichalcogenides Using Hyperspectral Photoluminescence Imaging: Adam Alfrey (U-M Physics)", "event_subtitle":"Adam Alfrey (U-M Physics)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Spatial variations in strain and disorder can strongly influence the optical and electronic properties of two-dimensional materials, even when the samples appear uniform under conventional microscopy. In this talk, I will show how hyperspectral photoluminescence imaging can map these variations across complete transition-metal dichalcogenide heterostructures. By recording a densely sampled spectrum at each spatial position, we extract the energies and linewidths of excitons, trions, and biexcitons in hBN-encapsulated MoSe\u2082 and WSe\u2082 devices. The resulting maps reveal smooth strain gradients, localized wrinkles and ripples, and changes produced by thermal cycling. In particular, resonance linewidth emerges as a sensitive probe of disorder and unresolved strain variations that may be difficult to identify from photoluminescence intensity or peak energy alone. Measurements across several device architectures and fabrication processes demonstrate how this approach can assess optoelectronic uniformity, identify regions suitable for targeted experiments, and connect device-scale fabrication quality with local excitonic properties.", "occurrence_notes":null, "guid":"151529-21911692@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/151529", "building_id":"1000167", "building_name":"West Hall", "campus_maps_id":"163", "room":"340", "location_name":"West Hall", "has_livestream":0, "cost":"", "tags":["Science","Physics"], "website":"", "sponsors":[ { "group_name":"CM-AMO Seminars", "group_id":"3801", "website":"" }, { "group_name":"Department of Physics", "group_id":"1965", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21911692 } , "149232-21906021": { "datetime_modified":"20260709T141652", "datetime_start":"20260915T160000", "datetime_end":"20260915T170000", "has_end_time":1, "date_start":"2026-09-15", "date_end":"2026-09-15", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Colloquium: TBA", "occurrence_title":"", "combined_title":"Colloquium: TBA: Scott Neville, ICERM", "event_subtitle":"Scott Neville, ICERM", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"TBA", "occurrence_notes":null, "guid":"149232-21906021@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/149232", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"1360", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"https:\/\/sites.google.com\/umich.edu\/nevilles\/about?authuser=0", "sponsors":[ { "group_name":"Colloquium Series - 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Professor Pamela Ronald will discuss engineering plants for resistance to infection and strategies to reduce methane emissions in rice.\n\nRonald is a Distinguished Professor in the Dept of Plant Pathology and Genome Center at UC Davis and an Investigator at the Innovative Genomics Institute, UC Berkeley. She also serves as a faculty scientist in Berkeley Lab\u2019s Environmental Genomics and Systems Biology division and Director of Grass Genetics at the Joint BioEnergy Institute. She is a faculty affiliate of the Center on Food Security and the Environment at Stanford University. \n\nThe Priscilla Connell Memorial Lecture is MCDB's flagship lecture. This annual lecture series has an illustrious history with presentations by Nobel Laureates, National Medal of Science Recipients, National Academy of Sciences Members, and Royal Society Members.", "occurrence_notes":null, "guid":"149137-21905812@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/149137", "building_id":"1000172", "building_name":"Rackham Graduate School (Horace H.)", "campus_maps_id":"71", "room":"Amphitheatre", "location_name":"Rackham Graduate School (Horace H.)", "has_livestream":0, "cost":"", "tags":["Bsbsigns","Sustainability","seminar","Rackham","Biology","Climate Adaptation","Ecology","Environment","Science","Plant Biology","Lecture"], "website":"https:\/\/lsa.umich.edu\/mcdb\/news-events\/priscilla-connell-memorial-lectures.html", "sponsors":[ { "group_name":"Department of Molecular, Cellular, and Developmental Biology", "group_id":"3755", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/06\/event_149137_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/06\/event_149137_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21905812 } , "150828-21910236": { "datetime_modified":"20260908T052140", "datetime_start":"20260915T160000", "datetime_end":"20260915T180000", "has_end_time":1, "date_start":"2026-09-15", "date_end":"2026-09-15", "time_start":"16:00:00", "time_end":"18:00:00", "time_zone":"America\/Detroit", "event_title":"Mario Gaming Night - 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We're excited to welcome you back to campus for an afternoon of gaming, pizza, snacks, and community!\n\nRSVPs are required: https:\/\/myumi.ch\/9JJDr\n\nThis is an in-person event. We strive to make our events accessible to all participants. 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