BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Jonathan Fan (Assistant Professor\, Electrical Engineering\, Stanf ord University) DTSTART:20200914T190000Z DTEND:20200914T200000Z DTSTAMP:20260404T111102Z UID:MITnanoSeminars/1 DESCRIPTION:Title: Inverse electromagnetics design with physics-driven neural networks\nby Jonathan Fan (Assistant Professor\, Electrical Engineerin g\, Stanford University) as part of MIT.nano Seminar Series\n\n\nAbstract\ nIn this talk\, Fan will present new algorithmic approaches to the inverse design of freeform electromagnetic devices. His focus will be on an optim ization strategy based on physics-driven neural networks\, termed GLOnets\ , in which the global optimization process is reframed as the training of a generative neural network. He will discuss how this method incorporates physics and physical constraints through the interfacing of Maxwell’s eq uations with machine learning\, and he will frame the discussion around ex amples of metasurfaces and thin film stacks operating near physical design limits. These ideas will help set the stage for hybrid physics- and data- driven approaches to be used in defining the next frontier of electromagne tics engineering.\n LOCATION:https://stable.researchseminars.org/talk/MITnanoSeminars/1/ END:VEVENT BEGIN:VEVENT SUMMARY:Ron Naaman (Aryeh and Mintzi Katzman Professor\, Department of Che mical and Biological Physics\, Weizmann Institute) DTSTART:20201026T180000Z DTEND:20201026T190000Z DTSTAMP:20260404T111102Z UID:MITnanoSeminars/2 DESCRIPTION:Title: The electron spin and chiral systems: Merging that results in novel properties\nby Ron Naaman (Aryeh and Mintzi Katzman Professor \, Department of Chemical and Biological Physics\, Weizmann Institute) as part of MIT.nano Seminar Series\n\n\nAbstract\nSpin based properties\, app lications\, and devices are commonly related to magnetic effects and to ma gnetic materials. However\, we found that chiral molecules act as spin fil ters for photoelectrons transmission\, in electron transfer\, and in elect ron transport.\n\nThe new effect\, termed Chiral Induced Spin Selectivity (CISS)\, was found\, among others\, in bio-molecules and in bio-systems. I t has interesting implications for the production of new types of spintron ics devices\, in controlling magnetization\, and on electron transfer and conduction. Recently we also found that charge polarization in chiral mole cules is accompanied by spin polarization. This finding shed new light on spin dependent interaction between chiral molecules and between them and m agnetic surfaces.\n LOCATION:https://stable.researchseminars.org/talk/MITnanoSeminars/2/ END:VEVENT BEGIN:VEVENT SUMMARY:Evelyn Hu (Tarr-Coyne Professor of Applied Physics and Electrical Engineering at the John A. Paulson School of Engineering and Applied Scien ces\, Harvard University) DTSTART:20201116T200000Z DTEND:20201116T210000Z DTSTAMP:20260404T111102Z UID:MITnanoSeminars/3 DESCRIPTION:Title: Transforming Defects into Opportunities: Leveraging the Nan oscale\nby Evelyn Hu (Tarr-Coyne Professor of Applied Physics and Elec trical Engineering at the John A. Paulson School of Engineering and Applie d Sciences\, Harvard University) as part of MIT.nano Seminar Series\n\n\nA bstract\nThe Dresselhaus Lecture series is named in honor of Mildred "Mill ie" Dresselhaus\, a beloved MIT professor whose research helped unlock the mysteries of carbon\, the most fundamental of organic elements—earning her the nickname “queen of carbon science.” This annual event recogniz es a significant figure in science and engineering from anywhere in the wo rld whose leadership and impact echo Millie’s life\, accomplishments\, a nd values.\n\nAs the “Queen of Carbon”\, Millie Dresselhaus’ profoun d understanding of materials like graphene and carbon nanotubes also recog nized new design concepts made possible at the nanoscale. Her work on quan tum structures brought dramatic new insights into the long-established fie ld of thermoelectric materials. She understood that it was not only the “perfection” of quantum confinement that could improve materials perfo rmance\, but also features usually regarded as “imperfections”: the ma ny internal interfaces characteristic of nanostructures that might be used as a means to control and enhance the thermoelectric behaviour. \n\nIn tr ibute to Millie’s contributions\, this talk provides another narrative o f how materials defects and insights at the nanoscale can be developed int o transformative scientific opportunities. There has been recent excitemen t about the performance of defects (such as vacancies\, or missing atoms) in crystalline semiconductors\, where the defect\, also termed qubit\, ca n manifest optical emission at a variety of wavelengths\, distinctively co upled to long spin coherence times. In particular\, when defects such as S ilicon Vacancies in 4H SiC are integrated within nanoscale optical cavitie s\, there is the possibility for remarkable\, controlled output of light f rom the defect. Moreover\, the integrated defect-cavity system can serve a s a “nanoscope” into the material\, allowing us to learn about the int eractions with surrounding defects\, ultimately providing broader insights into longer-term quantum coherence.\n LOCATION:https://stable.researchseminars.org/talk/MITnanoSeminars/3/ END:VEVENT BEGIN:VEVENT SUMMARY:Vahid Sandoghdar (Alexander von Humboldt Professor Dept. of Physic s\, Friedrich Alexander University\; Director\, Max Planck Institute for t he Science of Light) DTSTART:20201207T190000Z DTEND:20201207T200000Z DTSTAMP:20260404T111102Z UID:MITnanoSeminars/4 DESCRIPTION:Title: On single photons and single molecules: From nano-quantum o ptics to nanobiophotonics\nby Vahid Sandoghdar (Alexander von Humboldt Professor Dept. of Physics\, Friedrich Alexander University\; Director\, Max Planck Institute for the Science of Light) as part of MIT.nano Seminar Series\n\n\nAbstract\nLight-matter interaction at the nanometer scale lie s at the heart of elementary optical processes such as absorption\, emissi on or scattering. Over the past two decades\, we have realized a series of experiments to investigate the interaction of single photons\, single mol ecules and single nanoparticles. In this presentation\, Sandoghdar will re port on recent studies\, where we reach unity efficiency in the coupling o f single photons to single molecules and describe our efforts to exploit t his for the realization of polaritonic states involving a controlled numbe r of molecules and photons. Furthermore\, Sandoghdar will show how the und erlying mechanisms that play a central role in quantum optics\, help image and track single biological nanoparticles such as viruses and small prote ins with high spatial and temporal resolutions.\n LOCATION:https://stable.researchseminars.org/talk/MITnanoSeminars/4/ END:VEVENT BEGIN:VEVENT SUMMARY:Genevieve Van de Bittner\, PhD (Research scientist\, Agilent Techn ologies) DTSTART:20210125T200000Z DTEND:20210125T210000Z DTSTAMP:20260404T111102Z UID:MITnanoSeminars/6 DESCRIPTION:Title: Measuring metabolic flux with cellular and molecular resolu tion: Combining Seahorse XF and LC/MS technologies for comprehensive analy ses\nby Genevieve Van de Bittner\, PhD (Research scientist\, Agilent T echnologies) as part of MIT.nano Seminar Series\n\n\nAbstract\nAlterations in metabolic flux have been linked to a wide variety of cell processes\, from cancer development to T cell activation during immunotherapy or infec tion. This talk will cover two complementary technologies for measuring me tabolic flux\, Seahorse XF analyzers and liquid chromatography-mass spectr ometry (LC/MS) qualitative flux analysis.\n\nBoth technologies provide imp ortant insights into the rates of metabolic reactions within cells\, with Seahorse XF measurements providing cellular resolution and LC/MS qualitati ve flux measurements providing molecular resolution. Combined\, these tech nologies offer an in-depth\, multi-scale method for examining metabolic fl ux.\n\nThis presentation will highlight vignettes of combined Seahorse XF and LC/MS qualitative flux analyses that provide a comprehensive view of a dipocyte metabolism during cool-temperature adaptation\, metabolic alterat ions during infectious disease\, mutation-specific metabolic flux in cance r cells\, and the metabolic response of cancer cells to oxidative-phosphor ylation-modulating compounds.\n LOCATION:https://stable.researchseminars.org/talk/MITnanoSeminars/6/ END:VEVENT BEGIN:VEVENT SUMMARY:Pablo Jarillo-Herrero (Cecil and Ida Green Professor Department of Physics\, MIT) DTSTART:20210222T200000Z DTEND:20210222T210000Z DTSTAMP:20260404T111102Z UID:MITnanoSeminars/7 DESCRIPTION:Title: Magic angle graphene: The twist and shout of quantum materi als\nby Pablo Jarillo-Herrero (Cecil and Ida Green Professor Departmen t of Physics\, MIT) as part of MIT.nano Seminar Series\n\n\nAbstract\nThe understanding of strongly-correlated quantum matter has challenged physici sts for decades. Such difficulties have stimulated new research paradigms\ , such as ultra-cold atom lattices for simulating quantum materials. In th is talk\, Jarillo-Herrero will present a new platform to investigate stron gly correlated physics\, based on graphene moiré superlattices.\n\nIn par ticular\, Jarillo-Herrero will show that when two graphene sheets are twis ted by an angle close to the theoretically predicted ‘magic angle\,’ t he resulting flat band structure near the Dirac point gives rise to a stro ngly-correlated electronic system. These flat bands exhibit half-filling i nsulating phases at zero magnetic field\, which we show to be a correlated insulator arising from electrons localized in the moiré superlattice.\n\ nMoreover\, upon doping\, we find electrically tunable superconductivity i n this system\, with many characteristics similar to high-temperature cupr ates superconductivity. These unique properties of magic-angle twisted bil ayer graphene open up a new playground for exotic many-body quantum phases in a 2D platform made of pure carbon and without magnetic field. The easy accessibility of the flat bands\, the electrical tunability\, and the ban dwidth tunability though twist angle may pave the way toward more exotic c orrelated systems\, such as quantum spin liquids or correlated topological insulators.\n LOCATION:https://stable.researchseminars.org/talk/MITnanoSeminars/7/ END:VEVENT BEGIN:VEVENT SUMMARY:Dion Khodagholy (Assistant Professor\, Department of Electrical En gineering\, Columbia University) DTSTART:20210315T190000Z DTEND:20210315T200000Z DTSTAMP:20260404T111102Z UID:MITnanoSeminars/8 DESCRIPTION:Title: Translational Neuroelectronics\nby Dion Khodagholy (Ass istant Professor\, Department of Electrical Engineering\, Columbia Univers ity) as part of MIT.nano Seminar Series\n\n\nAbstract\nAs our understandin g of the brain’s physiology and pathology progresses\, increasingly soph isticated technologies are required to advance discoveries in neuroscience and develop more effective approaches to treating brain disease. There is a tremendous need for advanced materials solutions at the biotic/abiotic interface to improve the spatiotemporal resolution of neuronal recording a nd stimulation. Organic electronic devices offer a unique approach to thes e challenges\, due to their mixed ionic/electronic conduction\, mechanical flexibility\, enhanced biocompatibility\, and capability for drug deliver y.\n\nKhodagholy and fellow researchers designed\, developed\, and charact erized conformable organic electronic devices in the form of electrodes\, ion gated transistors\, conformable batteries\, and ionic communication un its to efficiently interface with the brain and acquire neurophysiological activity not previously accessible with recordings from the brain surface . These devices have facilitated large-scale rodent neurophysiology experi ments and uncovered a novel oscillatory interaction. The biocompatibility of the devices allowed intra-operative recording from patients undergoing epilepsy and deep brain stimulation surgeries\, highlighting the translati onal capacity of this class of neural interface devices.\n\nn parallel\, t hey are developing the high-speed electronics and embedded acquisition and storage systems required to make high channel count\, chronic neurophysio logical recording from animals and human subjects possible. This multidisc iplinary approach will enable the development of new devices based on orga nic electronics\, with broad applicability to the understanding of physiol ogic and pathologic network activity\, control of brain-machine interfaces \, and therapeutic closed-loop devices.\n LOCATION:https://stable.researchseminars.org/talk/MITnanoSeminars/8/ END:VEVENT BEGIN:VEVENT SUMMARY:TBA DTSTART:20210426T190000Z DTEND:20210426T200000Z DTSTAMP:20260404T111102Z UID:MITnanoSeminars/9 DESCRIPTION:by TBA as part of MIT.nano Seminar Series\n\nAbstract: TBA\n LOCATION:https://stable.researchseminars.org/talk/MITnanoSeminars/9/ END:VEVENT END:VCALENDAR