Dr. Walker's primary research interests lie in electric propulsion, plasma physics, and hypersonic aerodynamics/plasma interaction. He has extensive design and testing experience with Hall thrusters and ion engines. Dr. Walker has performed seminal work in Hall thruster clustering, vacuum chamber facility effects, plasma-material interactions, and electron emission from carbon nanotubes. His current research activities involve both theoretical and experimental work in advanced spacecraft propulsion systems, diagnostics (including THz time-domain spectroscopy and Thomson scattering), plasma physics, helicon plasma sources, magnetoplasmadynamic thrusters, and pulsed inductive thrusters. Dr. Walker also teaches the undergraduate Jet & Rocket Propulsion course, as well as the graduate level Rocket Propulsion, Electric Propulsion, and Gasdynamics courses.

Dr. Ng is the Love Family Professor in the School of Chemical & Biomolecular Engineering and the School of Earth & Atmospheric Sciences at the Georgia Institute of Technology. She earned her Ph.D. in Chemical Engineering from the California Institute of Technology and was a postdoctoral scientist at Aerodyne Research Inc.

Dr. Ng’s research focuses on the understanding of the chemical mechanisms of aerosol formation and composition, as well as their health effects. Her group combines laboratory chamber studies and ambient field measurements to study aerosols and air quality using advanced mass spectrometry techniques. Dr. Ng leads the establishment of the first, high time-resolution, long-term aerosol measurement network in the U.S.: Atmospheric Science and Chemistry mEasurement NeTwork (ASCENT), for characterization of aerosol chemical composition and physical properties, and their impacts on climate, human health, and ecosystems.

Our group is primarily a surface chemistry and physics group which focuses on the use of high-powered pulsed lasers, low-energy electron scattering, micro-plasmas, mass spectrometry and ultrahigh vacuum surface science techniques. We use this "tool-set" as well as some scattering theory to unravel the details of non-thermal processes occurring under a variety of non-equilibrium conditions. Our group is based upon an interdisciplinary approach and thus our research programs span the realm of fundamental investigations in molecular physics, surface physics and chemistry, bio-physics, bio-polymer formation under pre-biotic conditions as well as working in applied areas of relevance to analytical technique developments, atmospheric chemistry, catalysis and molecular hydrogen generation.

Dr. Jennifer Hirsch is an applied cultural anthropologist recognized internationally for fostering university and community engagement in sustainability and climate action. At the Georgia Institute of Technology, she is the inaugural Director of the Center for Sustainable Communities Research & Education (SCoRE), creating a culture of collaboration in which students, faculty, and staff engage in long-term relationships with community, government, and industry partners to build sustainable communities.

Dr. Hirsch’s research and teaching interests focus on: 1) equity in the sustainable built environment; 2) grassroots sustainability innovation; and 3) community leadership in energy equity.

Dr. Hirsch is also a co-founder and lead coordinator of RCE Greater Atlanta – a Regional Centre of Expertise on Education for Sustainable Development - officially acknowledged in 2017 by the United Nations University. She is also Adjunct Associate Professor at Georgia Tech’s School of City and Regional Planning. She serves on the faculty of The Asset-Based Community Development Institute hosted by DePaul University and on the Board of Directors of AASHE (Association for the Advancement of Sustainability in Higher Education).

Before coming to Georgia Tech, Dr. Hirsch worked in Chicago as Associate Director of Study Abroad at Northwestern University; as Urban Anthropology Director at The Field Museum of Natural History; and as an independent consultant with clients such as the City of Cleveland, Enterprise Community Partners, the U.S. Green Building Council, The Institute of Cultural Affairs, University of Illinois at Chicago, and Joliet Junior College. Dr. Hirsch received a Bachelor’s degree in American Culture from Northwestern University in Evanston, Illinois and a Ph.D. in Cultural Anthropology from Duke University in Durham, North Carolina.

Dr. Joy Harris has a diverse career within the Georgia Institute of Technology (GA Tech). Through her primary appointment as a faculty member in the School of Electrical and Computer Engineering (ECE), she serves as a teacher, mentor, and research advisor to undergraduate students. Within ECE, Dr. Harris focuses on lowering barriers and increasing access to all opportunities within the department. She also serves as faculty director for the Engineering for Social Innovation (ESI) Center, where she creates the space for students to use their technical skills for positive social impact. 

As ESI director, she leads undergraduate service breaks to developing countries; she operates a graduate leadership and development program; and she helps her students increase the operating capacity of non-profit organizations. Dr. Harris formerly served as faculty director of the Global Leadership Living and Learning Community (LLC), where she taught a course in the United Nations Sustainable Development Goals, and she helped her first-year LLC students to successfully integrate into the GA Tech community. Dr. Harris also served as one of the Associate Directors for the CREATE-X entrepreneurship initiative. In this capacity, she helped students increase their entrepreneurial confidence through designing their own career paths and by launching startups. Through all her roles on campus, Dr. Harris enjoys teaching and serving thousands of students throughout the academic year. 

Joy’s educational background includes a bachelor's in mathematics from Spelman College and a bachelor's in electrical engineering from Georgia Tech. She earned her master’s and Ph.D. in electrical engineering at Princeton University and an MBA at Georgia Tech in 2017.

Juan-Pablo Correa-Baena is an Assistant Professor and the Goizueta Junior Faculty Rotating Chair in the School of Materials Science and Engineering at the Georgia Institute of Technology in Atlanta, USA.

His group focuses on understanding and control of crystallographic structure and effects on electronic dynamics at the nanoscale of low-cost semiconductors for optoelectronic applications. Juan-Pablo’s group works on advanced deposition techniques, with emphasis on low-cost and high throughput, as well as advanced characterization methods that include synchrotron-based mapping and imaging approaches with nanoscale resolution.

His research program at Georgia Tech has attracted funding from the Department of Energy and the Department of Defense, which funds cutting-edge research on new materials for solar energy conversion.

His work has been cited over 28,000 times (h-index of 59) making him a top cited researcher as recognized by the Web of Science Group, Highly Cited Researchers-cross-field (2019, 2021) and Chemistry (2020), and Nature Index, Leading early career researcher in materials science (2019).

Litchfield received both his Bachelor's and Master's Degree from Georgia Tech in Computer Engineering. Working in cybersecurity since 2012, he has worked in Cyber-Physical System security, network protocol reverse engineering, and large-scale systems vulnerability assessments.

Debra Lam is the Founding Director of the Partnership for Inclusive Innovation, a statewide public-private partnership committed to investing in innovative solutions for shared economic prosperity. She continues to lead smart communities and urban innovation work at Georgia Tech. Prior to this, she served as Pittsburgh’s inaugural Chief of Innovation & Performance where she oversaw all technology, sustainability, performance, and innovation functions of city government. Before that, she was a management consultant at a global engineering and design firm, Arup. She has received various awards, including being named one of the top 100 most influential people in digital government by Apolitcal.

She has worked and lived in the United Kingdom, China, Taiwan, and Hong Kong. A graduate of Georgetown University and the University of California, Berkeley, Debra serves on the board of the Community Foundation of Greater Atlanta and was most recently appointed by the U.S Department of Commerce to the Internet of Things Advisory Board.