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Senior Director, COSINCÌý

ÌýÌýaju.jugessur@colorado.edu

Aju Jugessur hails from the tropical island nation of Mauritius. He earned his Ph.D. in Optoelectronics and Electronic Engineering from the University of Glasgow, specializing in nanofabrication and photonic devices, followed by a postdoctoral fellowship at McGill University. He also earned an MBA from the University of Colorado, Denver. Dr. Jugessur’s expertise encompasses photonic devices, nanolithography, and advanced nanofabrication, with deep experience in the design, development, commissioning, and management of state-of-the-art cleanroom and nanoscale materials characterization shared-user facilities that support cutting-edge research, education, and workforce development. ÌýDr. Jugessur has led the design, construction, and commissioning of the COSINC materials characterization and cleanroom facilities and currently provides comprehensive leadership for COSINC, including fiscal oversight, personnel management, operational sustainability, and long-term strategic planning. He has been a key contributor, as co-Principal Investigator (co‑PI), to the acquisition of a state-of-the-art 100 kV electron beam lithography system through a National Science Foundation (NSF) award. In addition, Dr. Jugessur is a co‑PI on the $20M NSF award to establish the National Quantum Nanofabrication (NQN) facility, which will be integrated with the COSINC cleanroom. He is presently leading NQN efforts encompassing cleanroom design, construction oversight, instrumentation procurement, and commissioning, as well as the development of governance structures, staffing models, and long-term sustainability plans. Dr. Jugessur has led numerous hands-on workshops in nanofabrication and materials characterization, introduced academic courses in these areas, and launched the first real-time, online laboratory course in nanofabrication. Dr. Jugessur is a Senior Member of the IEEE.Ìý

Facility Manager, COSINC-CHR

ÌýÌý borsa@colorado.edu

Tomoko Borsa was born in Tokyo, Japan and completed a BS and MS atÌýWasedaÌýUniversity, where she was exposed to the field of scanning electron microscopy for the first time. She then earned a Ph.D. in Materials Science with an emphasis on Chemistry of Materials from Colorado School of Mines. She also received an MS in Electrical Engineering (Photonics and Nanostructures) from University of Colorado Boulder. She also has extensive experience in the area of micro/nanofabrication including electron beam lithography and related process development.

Cleanroom Facility ManagerÌý

ÌýÌý Dylan.Bartusiak@colorado.edu

Dylan has been a member of the CU community since August 2019 where he was a part of the New Energy Devices laboratory in ECEE. He is a proud Colorado native who is happy to be able to work on a campus like the University of Colorado which has been a part of Colorado history since the late 1800s. With an education from the School of Mines in Physics and Materials Science, he served as a lab manager and process engineer designing and fabricating metal-insulator-metal diodes for several years. Having spent a large portion of his time working in cleanrooms in Santa Barbara, California, and at Â鶹ÊÓƵ, he has found a new home in the COSINC fabrication facility where he manages the cleanroom operations, including equipment maintenance and user training.

Facility Instructor and Coordinator

Spencer earned his Ph.D. in Physics at the Colorado School of Mines in 2025 as aÌý. His research in collaboration with theÌýÌýand Lawrence Livermore National Laboratory involved measuring nuclear decay in-situ using superconducting sensors. His thesis work involved designing, developing, and testing next-generation aluminum-based Superconducting Tunnel Junction (STJ) sensors for the BeEST. He brings expertise in CAD design for microfabrication, the operation of ultra-cryogenic systems, and passions for teaching and supporting novel applications in the realm of cutting-edge micro- and nanotechnology. He looks forward to applying this experience, especially during the expansion of COSINC's toolkit with the commissioning of the National Quantum Nanofab (NQN) facility. Spencer will support hands-on training, instruction including the development of training materials, process engineering, user recruitment, and outreach activities.ÌýSpencer was also a DI&A student ambassador at Mines and hopes to continue supporting diversity and outreach in STEM. In his free time, Spencer enjoys biking, listening to podcast Hidden Brain, and singing in choir.

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Nanofab Process Engineering Manager

ÌýÌýchuang.qu@colorado.eduÌý

Chuang Qu (/Choo-awng Choo/) earned his Ph.D. in Mechanical Engineering from Missouri University of Science and Technology in 2019. Prior to joining COSINC, he worked as a senior research engineer at the J.B. Speed School of Engineering at the University of Louisville, where he specialized in advanced nanofabrication and characterization techniques.Ìý Chuang’s research focuses on the development of novel nanomanufacturing processes, including microsphere photolithography (MPL) and glancing angle deposition (GLAD), to engineer functional surfaces with applications across optical, biological, and mechanical domains.ÌýÌýChuang is responsible for our Electron Beam Lithography system (EBPG5150plus) operations, including user training and process development. Further, he is also responsible for other related nanofabrication processes and the operation of a selection of nanofab tools for the upcoming National Quantum Nanofab Facility, that will be integrated with the COSINC cleanroom. Chuang is an avid marathon runner and enjoys traveling in his spare time.

Research Associate

ÌýÌý Nicholas.Weadock@colorado.edu

Nick Weadock (he/him) joined Â鶹ÊÓƵ in April 2021 after completing a postdoctoral appointment at the SLAC National Accelerator Laboratory. He received his Ph.D. in Materials Science at the California Institute of Technology (Caltech) where he studied thermodynamics and kinetics of phase transitions in metal hydrides. He has expertise in hydrogen storage and X-ray and neutron characterization of quantum and energy materials. Nick provides support and training on the COSINC’s suite of X-ray characterization tools and develop experimental platforms for in-situ characterization of materials and devices.