High Power Solid-State Laser Science and Tech
at ORAU Workforce Solutions

Date Posted: 12/23/2018

Opportunity Description

High Power Solid-State Laser Science and Technologies Research is being pursued on enabling technologies for high power solid-state lasers to meet the needs of the Army and the other armed services. These lasers are more rugged and compact than gas lasers, but have not been scaled to sufficiently high powers while maintaining good beam quality. We are investigating technologies for scalable gain media in Near- and Mid-IR along with advanced , thermal management, and beam quality improvement. These include ceramic gain media, which are as good as single crystals in most regards, but are mechanically stronger, inherently engineerable, and can be scaled to larger sizes. We are pursuing the use of these materials and others at cryogenic temperatures, where key thermal and optical properties are much improved over room temperature. We are particularly interested in laser operation at wavelengths near 1.6 microns in Er-doped solids, since this wavelength range offers much improved eye safety, and where ongoing advances in diodes lasers offer the potential for greatly improved efficiency and reduced thermal distortion. Also of interest are so called ‘low-phonon’ laser materials which offer efficient laser operation in the 3-5 µm wavelength range. Other gain media of interest are fibers, which offer considerable beam quality and efficiency advantages, as well as better device integration, but require innovative designs to enable sufficient power scaling. We are also investigating special materials and laser architectures to promote heat removal from laser gain media and to further improve beam quality, beam correction and beam combining techniques based on stimulated light scattering (Brillouin and Raman). Our laboratories have a range of laser and spectroscopic tools for these studies. These include several types of diode lasers and diode arrays for efficient pumping of laser materials and a range of laser cavity designs to test materials and thermal management approaches. We also have up-to-date spectrometers for absorption and emission spectroscopy, and cryostats for both laser and spectroscopic studies as a function of temperature. Reference M. Dubinskii, J. Zhang, V. Ter-Mikirtychev: Optics Letters Vol. 34, 1507-1509, 2009 N. Ter-Gabrielyan, L. D. Merkle, E. R. Kupp, et al.: Optics Letters 35, 922-924, 2010

Opportunity Snapshot

  • Employee Type: Full-Time
  • Location: Adelphi, MD
  • Opportunity Type: Science
  • Experience: Not Specified
  • Date Posted: 12/23/2018

About Us

Oak Ridge Associated Universities (ORAU) administers Science, Technology, Engineering and Mathematics (STEM) research participation programs for civilians such as:

The U.S. Army Research Laboratory (ARL) Research Associateship Program (RAP) allow Postdoctoral Fellows, Journeyman Fellows (undergraduate and graduates students and recent graduates), Senior Researchers, and Summer Faculty engage in research initiatives of their own choice, that are compatible with the interests of the government and will potentially contribute to the general effort of the ARL. Scientists and engineers at ARL help shape and execute the Army's program for meeting the challenge of developing technologies that will support Army forces in meeting future operational needs.

Research opportunities include, but are not limited to the following disciplines: Aerospace Engineering, Anthropology, Archeology, Biology, Biochemistry, Biological Engineering, Biomechanical Engineering, Biomedical Engineering, Chemical Engineering, Chemistry, Computer Science, Computer Engineering, Electrical Engineering, Environmental Health Risk Assessment, Environmental Science, Entomology, Epidemiology, Ergonomics, Geology, Health Education Mechanical Engineering, Materials Science, Mathematics, Nanotechnology, Photonics, Physics, Public Health Economics, Public Health Policy, and more.

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