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:20260422T212859Z UID:MITnanoSeminars/1 DESCRIPTION:Title: Inverse electromagnetics design with physics-driven neural network s\nby Jonathan Fan (Assistant Professor\, Electrical Engineering\, Sta nford University) as part of MIT.nano Seminar Series\n\n\nAbstract\nIn thi s talk\, Fan will present new algorithmic approaches to the inverse design of freeform electromagnetic devices. His focus will be on an optimization strategy based on physics-driven neural networks\, termed GLOnets\, in wh ich the global optimization process is reframed as the training of a gener ative neural network. He will discuss how this method incorporates physics and physical constraints through the interfacing of Maxwell’s equations with machine learning\, and he will frame the discussion around examples 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 electromagnetics en gineering.\n LOCATION:https://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:20260422T212859Z UID:MITnanoSeminars/2 DESCRIPTION:Title: The electron spin and chiral systems: Merging that results in nove l properties\nby Ron Naaman (Aryeh and Mintzi Katzman Professor\, Depa rtment of Chemical and Biological Physics\, Weizmann Institute) as part of MIT.nano Seminar Series\n\n\nAbstract\nSpin based properties\, applicatio ns\, and devices are commonly related to magnetic effects and to magnetic materials. However\, we found that chiral molecules act as spin filters fo r photoelectrons transmission\, in electron transfer\, and in electron tra nsport.\n\nThe new effect\, termed Chiral Induced Spin Selectivity (CISS)\ , was found\, among others\, in bio-molecules and in bio-systems. It has i nteresting implications for the production of new types of spintronics dev ices\, in controlling magnetization\, and on electron transfer and conduct ion. Recently we also found that charge polarization in chiral molecules i s accompanied by spin polarization. This finding shed new light on spin de pendent interaction between chiral molecules and between them and magnetic surfaces.\n LOCATION:https://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:20260422T212859Z UID:MITnanoSeminars/3 DESCRIPTION:Title: Transforming Defects into Opportunities: Leveraging the Nanoscale< /a>\nby 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) as part of MIT.nano Seminar Series\n\n\nAbstract \nThe Dresselhaus Lecture series is named in honor of Mildred "Millie" Dre sselhaus\, a beloved MIT professor whose research helped unlock the myster ies of carbon\, the most fundamental of organic elements—earning her the nickname “queen of carbon science.” This annual event recognizes a si gnificant figure in science and engineering from anywhere in the world who se leadership and impact echo Millie’s life\, accomplishments\, and valu es.\n\nAs the “Queen of Carbon”\, Millie Dresselhaus’ profound under standing of materials like graphene and carbon nanotubes also recognized n ew design concepts made possible at the nanoscale. Her work on quantum str uctures brought dramatic new insights into the long-established field of t hermoelectric materials. She understood that it was not only the “perfec tion” of quantum confinement that could improve materials performance\, but also features usually regarded as “imperfections”: the many intern al interfaces characteristic of nanostructures that might be used as a mea ns to control and enhance the thermoelectric behaviour. \n\nIn tribute to Millie’s contributions\, this talk provides another narrative of how mat erials defects and insights at the nanoscale can be developed into transfo rmative scientific opportunities. There has been recent excitement about t he performance of defects (such as vacancies\, or missing atoms) in crysta lline semiconductors\, where the defect\, also termed qubit\, can manifes t optical emission at a variety of wavelengths\, distinctively coupled to long spin coherence times. In particular\, when defects such as Silicon Va cancies in 4H SiC are integrated within nanoscale optical cavities\, there is the possibility for remarkable\, controlled output of light from the d efect. Moreover\, the integrated defect-cavity system can serve as a “na noscope” into the material\, allowing us to learn about the interactions with surrounding defects\, ultimately providing broader insights into lon ger-term quantum coherence.\n LOCATION:https://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:20260422T212859Z UID:MITnanoSeminars/4 DESCRIPTION:Title: On single photons and single molecules: From nano-quantum optics t o nanobiophotonics\nby Vahid Sandoghdar (Alexander von Humboldt Profes sor Dept. of Physics\, Friedrich Alexander University\; Director\, Max Pla nck Institute for the Science of Light) as part of MIT.nano Seminar Series \n\n\nAbstract\nLight-matter interaction at the nanometer scale lies at th e heart of elementary optical processes such as absorption\, emission or s cattering. Over the past two decades\, we have realized a series of experi ments to investigate the interaction of single photons\, single molecules and single nanoparticles. In this presentation\, Sandoghdar will report on recent studies\, where we reach unity efficiency in the coupling of singl e photons to single molecules and describe our efforts to exploit this for the realization of polaritonic states involving a controlled number of mo lecules and photons. Furthermore\, Sandoghdar will show how the underlying mechanisms that play a central role in quantum optics\, help image and tr ack single biological nanoparticles such as viruses and small proteins wit h high spatial and temporal resolutions.\n LOCATION:https://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:20260422T212859Z UID:MITnanoSeminars/6 DESCRIPTION:Title: Measuring metabolic flux with cellular and molecular resolution: C ombining Seahorse XF and LC/MS technologies for comprehensive analyses \nby Genevieve Van de Bittner\, PhD (Research scientist\, Agilent Technolo gies) as part of MIT.nano Seminar Series\n\n\nAbstract\nAlterations in met abolic flux have been linked to a wide variety of cell processes\, from ca ncer development to T cell activation during immunotherapy or infection. T his talk will cover two complementary technologies for measuring metabolic flux\, Seahorse XF analyzers and liquid chromatography-mass spectrometry (LC/MS) qualitative flux analysis.\n\nBoth technologies provide important insights into the rates of metabolic reactions within cells\, with Seahors e XF measurements providing cellular resolution and LC/MS qualitative flux measurements providing molecular resolution. Combined\, these technologie s offer an in-depth\, multi-scale method for examining metabolic flux.\n\n This presentation will highlight vignettes of combined Seahorse XF and LC/ MS qualitative flux analyses that provide a comprehensive view of adipocyt e metabolism during cool-temperature adaptation\, metabolic alterations du ring infectious disease\, mutation-specific metabolic flux in cancer cells \, and the metabolic response of cancer cells to oxidative-phosphorylation -modulating compounds.\n LOCATION:https://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:20260422T212859Z UID:MITnanoSeminars/7 DESCRIPTION:Title: Magic angle graphene: The twist and shout of quantum materials \nby Pablo Jarillo-Herrero (Cecil and Ida Green Professor Department of Ph ysics\, MIT) as part of MIT.nano Seminar Series\n\n\nAbstract\nThe underst anding of strongly-correlated quantum matter has challenged physicists for decades. Such difficulties have stimulated new research paradigms\, such as ultra-cold atom lattices for simulating quantum materials. In this talk \, Jarillo-Herrero will present a new platform to investigate strongly cor related physics\, based on graphene moiré superlattices.\n\nIn particular \, Jarillo-Herrero will show that when two graphene sheets are twisted by an angle close to the theoretically predicted ‘magic angle\,’ the resu lting flat band structure near the Dirac point gives rise to a strongly-co rrelated electronic system. These flat bands exhibit half-filling insulati ng phases at zero magnetic field\, which we show to be a correlated insula tor arising from electrons localized in the moiré superlattice.\n\nMoreov er\, upon doping\, we find electrically tunable superconductivity in this system\, with many characteristics similar to high-temperature cuprates su perconductivity. These unique properties of magic-angle twisted bilayer gr aphene open up a new playground for exotic many-body quantum phases in a 2 D platform made of pure carbon and without magnetic field. The easy access ibility of the flat bands\, the electrical tunability\, and the bandwidth tunability though twist angle may pave the way toward more exotic correlat ed systems\, such as quantum spin liquids or correlated topological insula tors.\n LOCATION:https://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:20260422T212859Z UID:MITnanoSeminars/8 DESCRIPTION:Title: Translational Neuroelectronics\nby Dion Khodagholy (Assistant Professor\, Department of Electrical Engineering\, Columbia University) as part of MIT.nano Seminar Series\n\n\nAbstract\nAs our understanding of th e brain’s physiology and pathology progresses\, increasingly sophisticat ed technologies are required to advance discoveries in neuroscience and de velop more effective approaches to treating brain disease. There is a trem endous need for advanced materials solutions at the biotic/abiotic interfa ce to improve the spatiotemporal resolution of neuronal recording and stim ulation. Organic electronic devices offer a unique approach to these chall enges\, due to their mixed ionic/electronic conduction\, mechanical flexib ility\, enhanced biocompatibility\, and capability for drug delivery.\n\nK hodagholy and fellow researchers designed\, developed\, and characterized conformable organic electronic devices in the form of electrodes\, ion gat ed transistors\, conformable batteries\, and ionic communication units to efficiently interface with the brain and acquire neurophysiological activi ty not previously accessible with recordings from the brain surface. These devices have facilitated large-scale rodent neurophysiology experiments a nd uncovered a novel oscillatory interaction. The biocompatibility of the devices allowed intra-operative recording from patients undergoing epileps y and deep brain stimulation surgeries\, highlighting the translational ca pacity of this class of neural interface devices.\n\nn parallel\, they are developing the high-speed electronics and embedded acquisition and storag e systems required to make high channel count\, chronic neurophysiological recording from animals and human subjects possible. This multidisciplinar y approach will enable the development of new devices based on organic ele ctronics\, with broad applicability to the understanding of physiologic an d pathologic network activity\, control of brain-machine interfaces\, and therapeutic closed-loop devices.\n LOCATION:https://researchseminars.org/talk/MITnanoSeminars/8/ END:VEVENT BEGIN:VEVENT SUMMARY:TBA DTSTART:20210426T190000Z DTEND:20210426T200000Z DTSTAMP:20260422T212859Z UID:MITnanoSeminars/9 DESCRIPTION:by TBA as part of MIT.nano Seminar Series\n\nAbstract: TBA\n LOCATION:https://researchseminars.org/talk/MITnanoSeminars/9/ END:VEVENT END:VCALENDAR