Colloquium: Nathan Carlie

    Thursday, February 4, 2016 - 3:30pm - 5:00pm
    Meinel 307

    Instantaneous Dispersion: a Window into Property Relationships for Optical Glass


    Optical applications in the 21st century are rapidly evolving, and materials with new capabilities are needed. Applications covering wide wavelengths ranges are a particular challenge as materials can behave very differently in the ultra-violet, visible and infrared spectral regions. A generalized model for selecting optical materials based on descriptions of dispersion and partial dispersion is presented. The relative behavior of various optical glasses is discussed based on glass composition. This is useful for both the optical designer and the glass maker as it illustrates the chemical origin of the dispersion curve and illustrates a possible path toward compositional tuning of the optical properties to fit specific applications. This method can be extended from traditional optical glasses into the UV and infrared ranges as it does not rely on pre-defined wavelengths at Fraunhofer lines.

    Speaker Bio(s): 

    Dr. Nathan A. Carlie's work at SCHOTT centers on the development of novel material and manufacturing methods for the optical industry, with a focus on laser and infrared applications. This includes fundamental material research, as well as internal and external application engineering.  During this time,  he developed unique optical materials for broadband laser and infrared imaging applications, which were based on novel design methodologies. 

    At Clemson university, his specialized experience centered on the solution-based preparation of optical-quality chalcogenide glass thin films and inorganic-polymer hybrids and comparing their molecular structure to traditional PVD materials using Raman spectroscopy.  The primary goal of his research is fabrication of novel IR-transparent materials for optical sensing applications.  Dr. Carlie's research has shown that thin film preparation through precursor dissolution and spin coating allows rapid and inexpensive preparation of highly homogenous materials with tight compositional control.  In addition, they have found it is possible to incorporate other materials into these films during processing while still maintaining high optical transparency which allowed the construction of complete optical sensor systems.

    In his work as an intern at Pacific Northwest National Lab, a graduate research assistant at Clemson University and undergraduate research assistant at University of Central Florida, Dr. Carlie has demonstrated the expert knowledge required for successful integration into the staff of the Office of Research and Development Materials Performance Division. As the primary researcher, he was responsible for developing the protocol, forming and integrating the work of an interdisciplinary team and ensuring the efficiency and effectiveness of the team.  He has used his specialized experience to ensure the assessment of research methodology and the feedback received from colleagues, team members, and from supervising faculty was applied in the revision and improvement of research program effectiveness.