The Applied Optical and Plasma Sciences department has three main thrust areas: Laser and Optical Diagnostics, Low Temperature Plasma Physics, and Thermal Characterization of Materials. The Laser and Optical Diagnostics thrust conducts innovative research and application development in LiDAR remote sensing, laser sources and characterization, and optical spectroscopy providing unique, real-time, non-contact, in-situ optical diagnostic capabilities. The Low Temperature Plasma Physics thrust investigates a range of phenomena from fundamental plasma physics to the application of plasma science for understanding device operation. A tightly coupled group of experimental and computational physicists develop novel experimental diagnostics and advanced computational models targeting plasma-surface interactions, arc discharge (vacuum to high pressure), and complex plasma chemistry. The Thermal Characterization thrust researches the fundamental thermal properties and decomposition products and pathways of a wide variety of materials experiencing an expansive range of environments. This work entails both state-of-the-art diagnostics as well as developiong custom diagnostics and techniques to provide information on the underlying science of thermal behaviors of materials.
Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs:
- Challenging work with amazing impact that contributes to security, peace, and freedom worldwide.
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- Career advancement and enrichment opportunities.
- Flexible schedules, generous vacations, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solild work/life balance.*
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*These benefits vary by job classification.
The Applied Optical and Plasma Sciences Department is seeking a postdoctoral researcher for creating and using next generation implementations of vibrational spectroscopies (e.g., Raman and FTIR). One aspect of this work will entail creating new spectroscopic implementations by integrating optical spectroscopic capabilities into existing experimental systems to permit in-situ interrogation of samples under complex and evolving environments. A second aspect of this work leverages vibrational spectroscopy techniques to evaluate materials for a variety of performance and compositional attributes requiring extensive knowledge of design of experiments and data analysis methods to characterize fundamental properties and changes in fundamental properties of glasses, ceramics, polymers, microeletronics, nanomaterials, and novel 2D-materials.
To this end, combined in-situ characterization tools (Raman, TEM, SEM, etc.) will be developed to investigate materials in complex and overlapping experiments. The extreme environmental stressors that will be explored include: thermal, mechanical, electrical biasing, irradiation, liquidous, and gaseous environments. These systems will be utilized to investigate the fundamental mechanisms driving material alterations in coupled environments. A portion of the effort will be invested in collaborating with external users from premier domestic and international universities.
A second component of the position will be leveraging vibrational spectroscopic techniques to identify material compositions, including minor impurities, to generate an understanding of material performance over an extensive range of harsh environmental conditions including fundamental failure modes.
Taken together, the research effort will extend basic understanding of material-photon-phonon interactions and multi-physical phenomena while also elucidating the means by which such interaction can be leveraged for function. You will be expected to effectively contribute towards team efforts to publish and present their research results in leading journals and conferences.
Key functions of this role include, but are not limited to:
- Publication of scientific results and participation in the scientific community, including international conferences and workshops.
- Material characterization including performance metrics, failure analysis, stress and strain measurements, and impurity analysis including quantification.
- Design of experiments to quantify the aforementioned material attributes.
- Design, build, and development of new in-situ characterization tools.
Qualifications We Require
- You have or are pursuing a PhD in Physics, Chemistry, Materials Science or Engineering, or closely related discipline and have a bachelor's in science, technology, engineering or mathematics (STEM).
- Your background includes experience in using and developing vibrational spectroscopic techniques to identify, examine, and understand material properties and performance.
- Able to obtain and maintain a DOE Q-level security clearance.
Qualifications We Desire
- The motivation and ability to tackle technical problems independently.
- Good communication and interpersonal skills fostering effective scientific collaborations with a diverse population of researchers.
- Proficiency in COMSOL, MATLAB, GRAMS.
- Experience in design of experiments to provide data analysis, statistics, and use of multivariate analysis techniques, e.g., Principle Component Analysis.
- Experience with theory and experiments in Raman, infrared (FTIR, ATR, etc.) and Brillouin spectroscopies, including polarization-resolved measurements.
- Background in spectroscopic analysis of glasses, ceramics, polymers, silicon, PZT and other piezoelectric materials, optical-based stress and strain measurement, various nitrides, nanotubes, and thin films.