CNS User Portal
Austin specializes in atom probe tomography and focused ion beam techniques.
David is a Professor of Applied Physics in the Practice of Electron Microscopy at the School of Engineering and Applied Sciences at Harvard University. He is the lead for the Imaging and Analysis facility at the CNS. Professor Bell received his doctorate in physics from the University of Melbourne and did his postdoctoral study at MIT. His research focuses on theory and application of aberration-corrected and analytical electron microscopy, with particular emphasis on the application of aberration corrected low voltage electron microscopy.
Adam Graham supports the imaging and analysis team within CNS. He specializes in Cryo SEM, Cryo Sample preparation, high resolution TEM, and Aberration corrected TEM. Adam provides training, application support, and assisted work as needed for CNS users. Before coming to CNS, Adam Supported the electron microscopy industry, performing sales installations, training, applications support, and service to the global community.
PhD in Applied Physics, University of Pisa – Italy
Carolyn began her training in Electron Microscopy while she was an undergraduate working on her B.S. at BGSU, where she double majored in Biology and Chemistry. She then worked at Case Western Reserve School of Medicine before moving on to graduate school. While at Penn State University, Carolyn earned a M.S. in Entomology, studying virus transmission. Since then, Carolyn has worked at Albert Einstein college of Medicine, Yale School of Medicine, and at the University of Richmond, heavily involved in research using light and electron microscopy as a tool throughout.
Equipment Engineer. 30 years experience in semiconductor equipment support, maintenance and manufacturing. Areas of expertise are Etch, PECVD, PVD. Education in computers, electronics and electrical construction.
Arthur specializes in optical microscopy and spectroscopy techniques including: confocal, fluorescence, phase contrast, live cell, DIC, CARS, SRS, TPF, SHG, TIRF, and FTIR, Raman, and PL spectroscopy.
Jules received her PhD in Physics in 2008 from the University of London. She then went on to do Postdoctoral work at the University of Oxford and Harvard University, followed by two years as a Staff Scientist in industry. She became a technical staff member in the CNS Imaging & Analysis group in January 2015, where she specializes in electron microscopy techniques for materials analysis.
Guixiong joined CNS in January 2013 as a senior process engineer. He is overseeing the photolithography section, and back end packaging at CNS. He manages the Nanoscribe 3D Lithography System, i-line Stepper, Maskless Aligner MLA150, uPG501 Laser Direct Writer, Wire Bonder, Flip Chip Bonder, and the Scriber/Cleaver LSD100. Outside of work, he likes music, delicacies, traveling, hiking, skiing, and snorkeling.
Greg specializes in device fabrication, surface analysis using XPS and material characterization using XRF and X-ray microCT imaging. He has performed research in academic and industrial settings on a variety of device platform including carbon nanotube memory, flexible printable electronics, optical chemical sensors, on-demand bioadhesive, silicon nanowire for radiation detection and microfluidic devices.
Jim has worked for Harvard since August of 1996 and has held several different positions in his time at the University. He started out as a Purchaser for the UIS Department’s campus computer store, The Technology Product Center (TPC). He was promoted to Purchasing Manager in 1998. In the fall of 1999, he left UIS and took a position in Harvard’s Office for Sponsored Research (OSR), since renamed the Office for Sponsored Programs, as a Staff Assistant. In 2000, he was promoted to Research Administrator and worked on sponsored funds for several science departments within the Faculty of Arts and Sciences.
In 2001, he accepted a position in the Department of Physics to work 50% as the Lab Director of Professor Charles M. Marcus and 50% as an administrator for the then Center of Imaging and Mesoscale Structures (CIMS). In 2002, he accepted the position of CNS Administrative Manager. In August of 2007, Jim became the Administrative Director of CNS.
Currently Jim manages the CNS User Program and all aspects of the day-to-day flow of prospective and current users within CNS.
Jason Tresback received a B.S in Chemistry with a minor in Physics from University of Massachusetts, Amherst in 2002 with research experience in organic synthesis and electrochemical synthesis of nano building-blocks. He then completed a M.S in Metallurgy and Materials Science and Engineering (MMAT) from University of Connecticut, Storrs in 2005 where he continued research on electrochemical template synthesis and characterization of metal-oxide-metal (MOM) heterojunction nanowires. Finally he received another M.S in Materials Science and Engineering (MSE) at The Ohio State University in 2008 where he continued research on single nanowire device fabrication for gas sensing applications. His current interests include synthesis, characterization, and device fabrication of electronic nanomaterials.
JD is the lead for Nanofabrication facility and Scanning Probe Microscope group at the CNS. Dr. Deng received his first doctorate in physics from Nankai University in China, then the second Ph. D degree in Electrical Engineering from Virginia Tech. (VT). After working as a project manager in a nanotechnology industry for 3 years, he joined CNS in 2004 as principal scientist. His current research interests include various nanofabrication technologies, especially advanced lithography and process integration, photonic/ electronic sensor structures, MEMs/NEMs device, and Scanning Probe Microscopy (SPM)-based nano-characterization technologies.
John Tsakirgis is a Senior staff Engineer for the LPCVD, RIE, and PECVD areas. He has a lot of experience in electro-mechanical equipment. He has been a member of CNS, Harvard University, for 16 years now. One of the original Mckay Engineers hired for the CIMS Project. He also manages most of the consumable and chemical inventory for CNS. He has spent 6 years in Asia installing Photolithography Equipment for GCA in the late 70’s, when technology was just starting to go Global. Upon his return he was an integral part of the facilitation of Photolithography and Wet Benches in the Brand new MTL clean room at MIT. He spent many years as Photo Etch Equipment Engineer at Analog Devices in Wilmington. After some moving around in the PECVD world he landed here at Harvard CIMS Project, which was renamed CNS in later years. He enjoys working with the students, helps them get oriented and encourages along the way. He loves the outdoors, hiking and camping, and cooking. He is a dedicated chanter and member of his Greek Orthodox Church. He is married and has 3 children. Life is Good.
Kevin Edwards is the Financial Associate of CNS and is responsible for service center facilities billing, monthly reconciliations, and travel reimbursement, and assists with support of the user program. Kevin studied Accounting with the Association of Certified Chartered Accountants and has more than 20 years accounting experience within education and training, tourism, retail management, distribution, and agriculture. Computers have held a life-long fascination for Kevin. He likes to travel, spending time on the beach, and enjoys tropical weather and the gentleman’s game of cricket.
Linda oversees the general financial and administration at CNS. Before joining CNS in January 2016, she has over 20 years of experience in financial, research grants management, and departmental administration at Harvard, Mass General Hospital, UC San Diego, and Mt. Sinai Medical School. Linda holds an M.S. in Public Accounting from the Pace University with an undergraduate degree in Economics.
Ling specializes in nanofabrication techniques to construct nanostructures, e.g., nanotubes, Si nanowires, and ultra-narrow (~10nm) smooth trenches in Si. Her current focus is on Reactive Ion Etch (RIE). She has collaborated with faculty groups to etch specific shapes in diamond, Si, and III-V materials.
Ling received her PhD in Materials Science and Engineering and worked with Kodak on CCD image sensors and Lucent on 3D optical switches. She is experienced in thin film deposition and characterization. In her free time, she enjoys reading and serving her community.
Mac is the primary ALD Process Engineer, and maintains various ancillary process, access, and safety systems at CNS.
Primary duties include, procurement, marketing, event planning, parking coordination, and facility access coordination
Philippe de Rouffignac is a Principal Scientist in charge of Chemical Vapor Deposition and Atomic Layer Deposition in the nanofabrication group at the CNS. Dr. de Rouffignac earned his bachelor's degree in chemistry from the University of Texas - Austin and his PhD in chemistry from Harvard University. In his doctorate work he performed developed novel ALD processes for many lanthanide series oxides as well as device applications for a catalytic ALD silica process. During his graduate studies, he served as a resident tutor in Dunster House where he enjoyed advising undergraduate students and working with the culinary team to run the Master’s Open Houses. Prior to his current position, he was a Principal Engineer at Arradiance Systems developing novel ALD processes and tools and prior to that was a Senior Process Engineer for Novellus systems working on HDP-CVD applications. In his spare time he enjoys cooking, traveling, golf, basketball and playing with his children.
Robert Westervelt is currently Mallinckrodt Professor of Applied Physics & Physics. He is a Fellow of the American Physical Society.
Westervelt's group investigates the quantum behavior of electrons inside nanoscale semiconductor structures, and develops tools for the manipulation of biological systems.
Sandra oversees the day-to-day operations of the Biomaterials Laboratory (G05), Nanotechnology & Rapid Prototyping Laboratory (G06), and the Soft Materials Cleanroom (SMCR G07A). She gives instrument training/support on laser cutters, 3D printers, DLS system, planetary ball mill, plate reader, lyophilizer, UV exposure systems, plasma cleaners, mixers, cell culture, and aseptic technique. Sandra earned her Bachelor’s degree in Biological Engineering from the University of Florida (2012) and her Master’s degree in Biomedical Engineering from Duke University (2014).
Steve has a long history of semiconductor equipment engineering starting in the late 70’s as a mechanical assembler for Plasma- Therm and progressing to field service for equipment manufacturers to supporting 24/7 semiconductor fabs. Steve’s expertise is in vacuum equipment, thermal processing, wet chemical systems, and gas handling equipment. Steve manages all equipment moves and installations in the Nanofab and shares equipment responsibility with Dave LeFleur. In his free time, Steve does extensive research on catching striped bass in Boston harbor, repairing old furniture, and supporting his children through college and into the workforce.
Tim is a specialist in scanning electron microscopy.
Yuan Lu is a Principal Engineer in Electron Beam Lithography at the Center of Nanoscale Systems at Harvard University. He has more than 30 years of hands-on experience in Electron Beam Lithography.
If you have any question in this area, he is the person to ask.
Svetla specializes in cryo-electron microscopy techniques (Cryo-TEM) and single particle automatic data acquisition. She has expertise in macromolecular structure determination by Cryo-EM; developing lipid nanotechnologies for structure determination and transport of membrane and membrane-associated proteins, as well as CryoEM applications for drug discovery and development.