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About the Role

The Optics and Metrology Group at NSLS-II seeks a Postdoctoral Research Associate to advance next-generation, non-contact optical fabrication technologies. This position supports an integrated program encompassing advanced control for IBF, APPJ/APPF capability development, hybrid metrology, and physics-informed ML.

Responsibilities

• Enhance removal rate and enable in-situ beam size and control for ion beam figuring (IBF).
• Research & development of Atmospheric Pressure Plasma Jet/Figuring (APPJ/APPF) for efficient figuring and smoothing.
• Develop Machine Learning (ML) approaches to improve determinism and predictability across IBF and APPF processes.
• Design, model, integrate and test an Einzel lens and diaphragm module for IBF.
• Develop calibration and diagnostic routines and implement closed-loop beam conditioning informed by metrology feedback.
• Develop process recipes for APPJ/APPF that achieve high removal efficiency while preserving surface roughness.
• Establish plasma and thermal diagnostics and integrate in-situ or near-line metrology for rapid iteration.
• Develop physics-informed and data-driven models to predict dwell time, raster strategies, and beam/plasma parameters.
• Apply metrology tools to quantify figure, slope, and roughness, correlating results with process parameters to refine models.
• Publish results in peer-reviewed journal articles and present findings to management and at scientific conferences.

Requirements

• Ph.D. in Physics, Plasma, Materials, Electrical Engineering, Computer Engineering or related discipline.
• Demonstrated experience in optical surface characterization and statistical analysis of figure and roughness data.
• Hands-on experience with energy-beam surface processing (e.g. APPJ, IBF, Fluid-jet polishing).
• Strong analytical, experimental design, and problem-solving skills.
• Effective written and oral communication abilities.
• Candidates must have received a Ph.D. by the commencement of employment.
• Post-doc and/or R&D positions may not exceed a combined total of 5 years of relevant work experience after obtaining their PhD, excluding specific life events.

Skills

• Optical surface characterization (e.g., AFM, SEM, coherence-scanning interferometry)
• Statistical analysis of figure and roughness data
• Energy-beam surface processing (e.g. APPJ, IBF, Fluid-jet polishing)
• Surface, materials science or chemistry (e.g., sputtering and etching mechanisms, plasma-surface interactions, roughness evolution)
• Designing, building or operating IBF systems, Einzel lenses, high-voltage or vacuum hardware, gas handling systems, or plasma diagnostics
• Applying ML to process modeling or optimization (e.g., PyTorch, TensorFlow), particularly physics-informed or reinforcement learning approaches
• Control, data acquisition, and instrumentation software (e.g., Python/C++)
• Experiment automation and data processing

Location

• On-site

Work Type

• On-site

Experience Level

• Postdoctoral

Education Level

• Ph.D.

Salary/Compensations

• $71,900.00 - $88,000.00 / year

Benefits

• Comprehensive employee benefits program

About the Company

• Brookhaven National Laboratory (BNL) delivers discovery science and transformative technology to power and secure the nation’s future.
• NSLS-II enables the study of material properties and functions with nanoscale resolution and exquisite sensitivity by providing world-leading capabilities for X-ray imaging and high-resolution energy analysis.
• The facility is open to users from academia and industry.
• Brookhaven Lab is a multidisciplinary laboratory with seven Nobel Prize-winning discoveries, 37 R&D 100 Awards, and more than 70 years of pioneering research.
• The Lab is primarily supported by the U.S. Department of Energy’s (DOE) Office of Science.
• Brookhaven Science Associates (BSA) operates and manages the Laboratory for DOE.
• BSA is a partnership between Battelle and The Research Foundation for the State University of New York on behalf of Stony Brook University.

Equal Opportunity

• Brookhaven Science Associates is an Equal Employment Opportunity Employer-Vets/Disabled.
• We are committed to fostering a respectful and collaborative environment that fuels scientific discovery.
• We consider all qualified applicants without regard to any characteristic protected by law.
• All qualified individuals are encouraged to apply.
• We ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.
• BSA employees are subject to restrictions related to participation in Foreign Government Talent Recruitment Programs.