aspuru-list March 2016

aspuru-list@lists.fas.harvard.edu

23 participants
63 discussions

[Aspuru-Guzik Group List] THEOCHEM (!!!)

by Alan Aspuru-Guzik

Dear group members, I would love to continue encouraging you to participate in THEOCHEM. It is a life-changing experience to meet so many faculty. I usually meet them all in other contexts, but for you, this is pretty much the only way to meet the theory faculty across the country. When I was a a grad student in Berkeley, I never had the chance to talk one on one or to meet so many theory professors. I hope that all of you (for different reasons) participate in theochem. If you are a young padovan, you can learn about what are the different areas of theoretical chemistry and what keeps people up at night. If you are an advanced graduate student, you may need a postdoc. If you are a postdoc, you may need a job! Networking is always under-rated in academia. Please, please, please particpiate for your own good. Best, Alan Alán Aspuru-Guzik | Professor of Chemistry and Chemical Biology Harvard University | 12 Oxford Street, Room M113 | Cambridge, MA 02138 (617)-384-8188 | http://aspuru.chem.harvard.edu | http://about.me/aspuru

8 years, 1 month

[Aspuru-Guzik Group List] Excitonics Seminar: Delia Milliron - April 5 - 4:30pm in 36-428

by Catherine M Bourgeois

Please post and forward to your groups: CENTER FOR EXCITONICS SEMINAR SERIES presents: Plasmonic metal oxide nanocrystals April 5, 2016 at 4:30pm/34-401A Delia Milliron Department of Chemical Engineering, The University of Texas at Austin [Delia-Milliron.01] Degenerately doped metal oxide semiconductors, like ITO, exhibit plasmonic resonance at near and mid-infrared wavelengths tunable by varying their composition. Nanocrystals of many such materials have now been synthesized and applications are emerging that leverage the responsiveness of their localized surface plasmon resonance (LSPR) to electronic charging and discharging. For example, we are developing a new class of electrochromic glass that can dynamically control heat loads and daylighting in buildings to save energy and enhance comfort of building occupants. Further applications of these novel plasmonic nanocrystals will hinge, in part, on their ability to concentrate infrared light into nanoscale volumes and to enhance electronic and vibrational state transitions via associated field enhancement effects. Through simulations, we have predicted high field enhancement factors exceeding 300x for faceted nanocrystals. Experimentally, we can assess the potential of plasmonic oxide nanocrystals for field enhancement by observing the homogeneous LSPR linewidth, which is inversely related to the dephasing time. We have sought to distinguish this intrinsic linewidth from the heterogeneous broadening that is always present for colloidal nanoparticles. Measuring LSPR spectra of individual nanocrystals by tip-enhanced synchrotron FTIR spectroscopy we find single nanocrystals can have linewidths less than half of the corresponding ensembles. Thus, the dephasing times are long and plasmonic oxide nanocrystals have great potential for diverse applications in energy. I will conclude with an outlook on how materials chemistry enables the tuning of LSPR properties by design. Delia J. Milliron is an Associate Professor in the McKetta Department of Chemical Engineering at the University of Texas at Austin and a Fellow of the Henry Beckman Professorship. She also serves as an Associate Editor for the journal Nano Letters. Dr. Milliron received her PhD in Chemistry from the University of California, Berkeley, in 2004. From 2004 to 2008 she worked for IBM's research division, initially as a postdoctoral researcher and subsequently as a member of the research staff. In 2008, she joined the research staff at the Molecular Foundry, Lawrence Berkeley National Lab, where she served as the Director of the Inorganic Nanostructures Facility and later as the Deputy Director. Dr. Milliron's awards include a Sloan Research Fellowship, a DOE Early Career award and a Resonate Award from Caltech's Resnick Institute. Her research is motivated by the potential for nanomaterials to introduce new functionality to and reduce manufacturing costs of energy technologies. Her group's activities span from the fundamental chemistry and assembly pathways of nanomaterials to device integration and characterization. The Center For Excitonics Is An Energy Frontier Research Center Funded By The U.S. Department Of Energy, Office Of Science And Office Of Basic Energy Sciences Light refreshments will be served

8 years, 1 month

[Aspuru-Guzik Group List] Cold/Flu Meds

by Marlon Cummings

If you have some, we need it. Thanks!! ----------------- *Marlon G. CummingsLab Manager, Aspuru-Guzik GroupMallinckrodt M136Department of Chemistry and Chemical BiologyHarvard University12 Oxford StreetCambridge, MA 02138617-496-9964617-496-9411 (fax)http://aspuru.chem.harvard.edu/ <http://aspuru.chem.harvard.edu/>*

8 years, 1 month

[Aspuru-Guzik Group List] Impressions on Javad

by Alan Aspuru-Guzik

Dear all, Feel free to send me your impression on Javad Hashemi and his talk and interactions yersterday. Alan Alán Aspuru-Guzik | Professor of Chemistry and Chemical Biology Harvard University | 12 Oxford Street, Room M113 | Cambridge, MA 02138 (617)-384-8188 | http://aspuru.chem.harvard.edu | http://about.me/aspuru

8 years, 1 month

[Aspuru-Guzik Group List] High resolution photos

by Afshan Mohajeri

Hi All, Please find the high resolution of the photos in the attached files. Afshan

8 years, 1 month

[Aspuru-Guzik Group List] [qip] of interest

by Edward Farhi

Please note change in location OPTICS AND QUANTUM ELECTRONICS SEMINAR Wednesday, March 30, 2016 11:00 AM CUA Seminar Room, 26-214 Ryan Hamerly Stanford University Quantum Noise in Photonic Logic: from Free Carriers to Ising Machines As nanophotonics and materials research drive optical logic to the low-power, few-photon limit, quantum properties of light start to matter. Even if we aren’t building a quantum computer, these quantum effects can play a key role limiting the performance of existing devices, or enabling entirely new dynamics. I present quantum simulations of devices based on semiconductor (free-carrier) optical nonlinearities and propose an optical annealing machine based on this effect. In addition, I apply these methods to study synchronously-pumped optical parametric oscillator (OPO) networks, which have recently been proposed and demonstrated, and are a promising alternative to digital computers for Ising optimization problems. Edward Farhi Director Center for Theoretical Physics Massachusetts Institute of Technology farhi(a)mit.edu<mailto:farhi@mit.edu> _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

8 years, 1 month

[Aspuru-Guzik Group List] Group photo

by Afshan Mohajeri

Hello Everyone, I have attached today's pictures. Hope it satisfies all :) I also want to say goodbye and wish you all the best. Afshan --

8 years, 1 month

[Aspuru-Guzik Group List] Today 4:00pm : Machine Learning sub-group meeting

by Benjamin Sanchez Lengeling

Hi A-G group, Today we start the first Machine Learning sub-group meeting. We are meeting around Acapulco-plex (AKA new siberia) meeting room and might move depending if it's in use with the visiting post-doc or not. As a start, Jennifer will give an overview of how AlphaGo works and we can discuss possible further applications as a group. ( http://www.nature.com/news/google-ai-algorithm-masters-ancient-game-of-go-1… ). It will also serve to talk about what types of future topics we want to cover, sub-group dynamics ,tutorials, etc. Come ! Hope all is well, Ben and Jennifer

8 years, 1 month

[Aspuru-Guzik Group List] Javad Hashemi talk at 10:30!

by Steven A. Lopez

Hi all, Javad is a new postdoc candidate for our group. Please come to his postdoc talk in 10 min and learn about his really cool work. Thanks, Steven

8 years, 1 month

[Aspuru-Guzik Group List] Fwd: Javad Hashemi schedule for visit on Monday March 28

by Marlon Cummings

*Marlon G. CummingsLab Manager, Aspuru-Guzik GroupMallinckrodt M136Department of Chemistry and Chemical BiologyHarvard University12 Oxford StreetCambridge, MA 02138617-496-9964617-496-9411 (fax)http://aspuru.chem.harvard.edu/ <http://aspuru.chem.harvard.edu/>* Steven -- Steven A. Lopez, PhD Postdoctoral researcher, Aspuru-Guzik group Department of Chemistry & Chemical Biology Harvard University

8 years, 1 month

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aspuru-list March 2016