Journal ArticleDOI
Nd-doped phosphate glasses for high-energy/high-peak-power lasers
TLDR
In this paper, the composition and properties of Nd-doped meta-phosphates are reviewed and the major mechanisms for Nd 3+ non-radiative relaxation are presented and empirical expressions are presented that predict these effects.Abstract:
The composition and properties of neodymium-doped (Nd-doped) phosphate glasses used for simultaneous high-energy (10 3 –10 6 J) and high-peak-power (10 12 –10 15 W) laser applications such as fusion energy research, are reviewed. The most common base glasses are meta-phosphates (O/P ∼3) with the approximate composition: 60P 2 O 5 –10Al 2 O 3 –30M 2 O/MO; K/Ba or K/Mg are typical modifiers. The spectroscopy of Nd 3+ in these glasses is well understood and laser properties can be accurately determined from measured spectroscopic properties. The major mechanisms for Nd 3+ non-radiative relaxation are reviewed and empirical expressions are presented that predict these effects in phosphate glasses. Optical and thermal–mechanical properties have been measured on a number of laser glasses and can be correlated with composition. Sub-critical crack growth rates in stress regions I, II and III have been reported for the first time in phosphate laser glasses. The mechanism for Pt inclusion formation and dissolution has been studied leading to damage resistant (Pt-inclusion-free) laser glasses.read more
Citations
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Journal ArticleDOI
Elastic Properties and Short-to Medium-Range Order in Glasses
TL;DR: In this paper, the elastic properties of glass have been analyzed at the nanoscale and it was shown that Young's modulus (E) and Poisson's ratio (ν) at the continuum scale allow to get insight into the short and medium-range orders existing in glasses.
Journal ArticleDOI
Subtissue Thermal Sensing Based on Neodymium-Doped LaF3 Nanoparticles
Uéslen Rocha,Carlos Jacinto da Silva,W. F. Silva,I. Guedes,Antonio Benayas,Laura Martínez Maestro,Mónica Acosta Elias,Enrico Bovero,Frank C. J. M. van Veggel,José García Solé,Daniel Jaque +10 more
TL;DR: It has been found that the infrared emission bands of Nd³⁺:LaF₃ nanoparticles show a remarkable thermal sensitivity, so that they can be advantageously used as luminescent nanothermometers for subtissue thermal sensing.
Journal ArticleDOI
The National Ignition Facility: enabling fusion ignition for the 21st century
TL;DR: The National Ignition Facility (NIF) at Lawrence Livermore National Laboratory, when completed in 2008, will contain a 192-beam, 1.8?MJ, 500?TW, ultraviolet laser system together with a 10?m diameter target chamber and room for 100 diagnostics as discussed by the authors.
Journal ArticleDOI
The National Ignition Facility
TL;DR: The National Ignition Facility (NIF) at Lawrence Livermore National Laboratory is a stadium-sized facility that, when completed in 2008, will contain a 192-beam, 1.8-megajoule, 500-terawatt, ultraviolet laser system together with a 10m-diam target chamber and room for 100 diagnostics as discussed by the authors.
Proceedings ArticleDOI
NIF optical materials and fabrication technologies: an overview
John H. Campbell,Ruth A. Hawley-Fedder,Christopher J. Stolz,Joseph A. Menapace,Michael R. Borden,Pamela K. Whitman,June Yu,Michael J. Runkel,Michael O. Riley,Michael D. Feit,Richard P. Hackel +10 more
TL;DR: The NIF optical wavefront specifications span a continuous range of spatial scale-lengths from 10 μm to 05 m (full aperture) as discussed by the authors, and are used in the NIF laser system.
References
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TL;DR: The Fundamentals of Photonics, Third Edition as discussed by the authors is a self-contained and up-to-date introductory-level textbook that thoroughly surveys this rapidly expanding area of engineering and applied physics.
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Solid-state laser engineering
TL;DR: In this article, the characteristics, design, construction and performance of solid-state lasers are discussed from an industrial perspective, focusing on engineering and practical considerations; phenomenological aspects using models are preferred to abstract mathematical derivations.