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DTSTART;TZID=America/New_York:20251202T140000
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DTSTAMP:20260524T071109
CREATED:20251007T150735Z
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SUMMARY:Photonics Initiative Seminar: Matthew White
DESCRIPTION:Dr. Matthew White\, University of Vermont\nHost: Matthew Sfeir \nMetal-dielectric photonic crystal organic light emitting diodes: band structure\, defect engineering\, and topological states.\nAbstract: We investigate the band structure of metal-dielectric photonic crystals comprising stacked organic semiconductor microcavities with silver metal mirrors. Employing organic semiconductor dielectric layers allows the unit cells in the crystal to function as optoelectronic devices including OLEDs and photodetectors\, whether addressed individually or collectively. Geometric variables and material composition are presented to tune the band structure and corresponding photonic wave functions within the crystal. When single defects are introduced into crystals\, individual unit cells with aperiodic dimensionality of the organic dielectric layer\, the resulting mid-gap defect states are shown to hybridize with a photonic band at certain resonant dimensions. The resonance of the defect cavity affects the transmittance of light through the device\, disrupting or enhancing the coupling between otherwise resonant cavities. If the defect is periodic throughout the crystal\, the effects on band structure are very different.  We introduce a periodic defect to every other metal layer\, which doubles the size of the unit cell and has previously been shown to induce a Peierls bandgap.  Defining a ratio R of the thickness of the even numbered and odd numbered metal layers\, the condition R=1 results in no Peierls gap as the cavities are uniform. We demonstrate that by varying that ratio from R<1 to R>1\, there is a point where the band collapses resulting in topological edge states\, heavily localized in the two outer-most cavities.  Topological domain walls are introduced within the bulk of a crystal with similar properties to soliton-like domain walls in the Su-Schrieffer-Heeger model. \nBiography: Matthew White is an Associate Professor of Physics and the director of the Materials Science Graduate Program at the University of Vermont.  His research focuses on materials and devices for light harvesting and light emission\, ranging from stability of commercial photovoltaic modules to nanostructured photonic devices.  Prior to joining UVM\, he was a postdoctoral researcher and then a fixed-term assistant professor in the Institute for Physical Chemistry at the Johannes Kepler University in Linz\, Austria.  He earned his PhD in Physics from the University of Colorado\, Boulder\, and a BS in Physics and Mathematics from the University of Washington. \nZoom Meeting ID 840 7627 0380 Passcode 908949 \n2025 12 02 Photonics Seminar flier Matthew White
URL:https://asrc.gc.cuny.edu/event/photonics-initiative-seminar-matthew-white/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Photonics
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20251203T120000
DTEND;TZID=America/New_York:20251203T130000
DTSTAMP:20260524T071109
CREATED:20250821T170041Z
LAST-MODIFIED:20251125T063343Z
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SUMMARY:Fall '25 Biochem Seminar: Associate Professor Rupal Gupta
DESCRIPTION:Structure\, Dynamics and Assembly of Human Antimicrobial Protein\n\nAntimicrobial proteins in humans sequester zinc to curtail infection. Although well established as key components of the immune response\, the mechanisms of action of these proteins\, such as S100A12\, in the inflammatory pathway is not well understood. In this talk\, I will present our work on biophysical characterization of S100A12 using NMR spectroscopy\, together with cellular studies evaluating the origin of inflammatory signals triggered by the protein. In particular\, I will focus on the roles of Ca(II) and Zn(II) towards modulating the structure and internal dynamics of S100A12 that afford its biological functions. Based on our studies\, we propose a generalized model describing the molecular events that enable S100A12 and related antimicrobial proteins to regulate infection and inflammation during immune response.\nPlease use this link to access Zoom. \nPlease contact Hyacinth Camillieri at hcamillieri@gc.cuny.edu for any questions.
URL:https://asrc.gc.cuny.edu/event/fall-25-biochem-seminar-associate-professor-rupal-gupta/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Structural Biology
ATTACH;FMTTYPE=application/pdf:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/fall-25-biochem-seminar-associate-professor-rupal-gupta/20250903_rojas_flyer.pdf
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20251205T100000
DTEND;TZID=America/New_York:20251205T110000
DTSTAMP:20260524T071109
CREATED:20251016T113049Z
LAST-MODIFIED:20251202T153254Z
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SUMMARY:Photonics Initiative Seminar: Igor Aharonovich
DESCRIPTION:Dr. Igor Aharonovich\, University of Technology Sydney\nQuantum Technologies with Hexagonal Boron Nitride\nAbstract – Engineering robust\, solid‐state quantum systems is amongst the most pressing challenges to realise scalable quantum photonic circuitry. In recent years\, quantum emitters in hexagonal boron nitride (hBN) have emerged as fascinating candidates for realisation of room temperature quantum technologies with hBN. \nIn this presentation I will discuss the photophysical properties of quantum emitters in hBN and expand on their utility in scalable quantum technologies. I will focus on avenues to engineer these defects and describe their most promising properties – including their spin – photon interfaces. Integration of the emitters with photonic resonators is in the heart of achieving quantum circuitry on chip\, and I will present our most recent attempts to achieve this goal. Taking advantage of the unique 2D nature of hBN\, I will also show potential assembly of quantum optoelectronic devices and discuss potential on chip tunability of quantum emitters in hBN. \nAll in all\, hBN possesses all the vital constituents to become the leading platform for integrated quantum photonics. To this extent\, I will highlight the challenges and opportunities in engineering hBN quantum photonic devices and will frame it more broadly in the growing interest with 2D materials nanophotonics. \n \nBio – Igor Aharonovich is an award-winning scientist working on cutting-edge research into quantum sources that are able to generate\, encode and distribute quantum information. A Professor in the School of Mathematical and Physical Sciences at UTS\, Igor investigates optically active defects in solids\, with the aim of identifying a new generation of ultra-bright solid state quantum emitters. He is a chief investigator at the ARC Centre of Excellence for Transformative Meta-Optical Materials (TMOS)\, and leads an international collaboration investigating the chemical structure of crystal imperfections\, or defects\, in the nanomaterial hexagonal boron nitride (hBN). In 2013\, he established the nanophotonics research group at UTS\, was promoted to Associate Professor in 2015\, and to a full Professor in 2018. His research group explores new quantum emitters in wide bandgap materials\, with the aim of fabricating quantum nanophotonic devices on a single chip for the next generation of quantum computing\, cryptography and bio-sensing. In 2016\, Igor and his team discovered the first quantum emitters in 2D materials that operate at room temperature based on defects in hBN. He has co-authored more than 200 peer-reviewed publications\, including one of the most cited reviews on diamond photonics. He has also written a road map for solid state single-photon sources. In 2019\, Igor co-founded the inaugural online photonics conference\, Photonics Online Meetup\, which attracted more than 1100 attendees from around the world\, and which was highlighted by top science outlets. The conference now runs twice a year. Igor has received several international awards including the Pawsey Medal (2017)\, the IEEE Photonics Young Investigator Award (2016) and in 2020 he was the recipient of the Kavli Foundation Early Career Lectureship in Materials Science from Materials Research Society. In 2021\, he became a Fellow of the Optical Society (OSA)\, and in 2024 elected as a fellow of SPIE.  Igor received his B.Sc. (2005) and M.Sc. (2007) in Materials Engineering from the Technion – Israel Institute of Technology\, and a PhD from the University of Melbourne (2010).
URL:https://asrc.gc.cuny.edu/event/photonics-initiative-seminar-igor-aharonovich/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Photonics
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20251211T120000
DTEND;TZID=America/New_York:20251211T133000
DTSTAMP:20260524T071109
CREATED:20251017T184838Z
LAST-MODIFIED:20251017T184838Z
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SUMMARY:Neuroscience Fall 2025 Seminar Series - Michelle Monje
DESCRIPTION:Michelle Monje\, MD\, PhD is a physician-scientist\, neuroscientist\, and neurooncologist at Stanford University\, where she has developed new treatments for brain cancer since 2011. Her interests are neurodevelopment\, pediatric gliogenesis\, chemobrain\, and molecular and cellular (including glial) neurobiology. Her accomplishments are too many to count. She has published numerous high-impact papers (mostly in Cell\, Nature\, and Science) and won many prestigious awards\, including the MacArthur Genius Award (2021) and the NIH Pioneer Award (2018). She is also an HHMI investigator (2021) and a member of the National Academy of Sciences (2025).
URL:https://asrc.gc.cuny.edu/event/neuroscience-special-seminar-michelle-monje/
LOCATION:Advanced Science Research Center (ASRC)\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Neuroscience
ATTACH;FMTTYPE=image/jpeg:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/neuroscience-special-seminar-michelle-monje/Michelle-Monje-121125.jpg
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20251216T163000
DTEND;TZID=America/New_York:20251216T183000
DTSTAMP:20260524T071109
CREATED:20251118T224251Z
LAST-MODIFIED:20251119T165928Z
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SUMMARY:Alumni and Friends Community Science Night
DESCRIPTION:Join us on Tuesday\, Dec. 16 to reconnect and learn all about what’s happening at the CUNY ASRC! All are welcome — especially former and current students\, interns\, summer researchers\, and their friends and family. The night will include fun science activities for all ages and an updated tour of the the CUNY ASRC’s state-of-the-art research facilities. \nHere is the RSVP form: https://bit.ly/3JGRh5V \n \n\nDownload and share flyer
URL:https://asrc.gc.cuny.edu/event/alumni-and-friends-community-science-night/
LOCATION:Advanced Science Research Center (ASRC)\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Environmental Sciences,Nanoscience,Neuroscience,Photonics,Structural Biology
ATTACH;FMTTYPE=image/jpeg:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/alumni-and-friends-community-science-night/TAYB7879_1280x720.jpg
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