Journal ArticleDOI
Efficient coupling of high-intensity subpicosecond laser pulses into solids
Margaret M. Murnane,Henry C. Kapteyn,S. P. Gordon,Jeffrey Bokor,Elias N. Glytsis,Roger Falcone +5 more
TLDR
In this article, the authors demonstrate a new technique for enhancing the absorption of high-intensity, ultrashort-duration laser pulses by solids, such as gold gratings and gold clusters.Abstract:
We demonstrate a new technique for enhancing the absorption of high‐intensity, ultrashort‐duration laser pulses by solids. Targets consisting of gold gratings and gold clusters were found to absorb greater than 90% of the incident high‐intensity laser light. This is in contrast to less than 10% absorption by flat surfaces. As a result of this strong coupling of the laser to a high‐density plasma, conversion efficiency of laser energy to x rays of greater than 1% was observed for x rays above 1 keV. Efficiency of nearly 25% was observed for emissions greater than 30 eV. These conversion efficiencies are more than an order of magnitude greater than those measured from flat targets.read more
Citations
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Origin of laser-induced near-subwavelength ripples: interference between surface plasmons and incident laser
TL;DR: It is shown that short-pulse laser-induced classical ripples on dielectrics, semiconductors, and conductors exhibit a prominent "non-classical" characteristic-in normal incidence the periods are definitely smaller than laser wavelengths, which indicates that the simplified scattering model should be revised.
Journal ArticleDOI
Relativistic plasma nanophotonics for ultrahigh energy density physics
Michael Purvis,Vyacheslav N. Shlyaptsev,Reed Hollinger,C. Bargsten,Alexander Pukhov,Amy L. Prieto,Yong Wang,Bradley M. Luther,Liang Yin,Shoujun Wang,Jorge J. Rocca +10 more
TL;DR: In this paper, femtosecond laser pulses were used to heat dense matter, converting it into an extremely hot plasma, achieving 52-times ionized gold and gigabar pressures, which can be exceeded only in the central hot spots of thermonuclear fusion plasmas.
Journal ArticleDOI
High-efficiency metallic diffraction gratings for laser applications
R. D. Boyd,Jerald A. Britten,D. Decker,Bruce W. Shore,Brent C. Stuart,Michael D. Perry,Lifeng Li +6 more
TL;DR: The design and fabrication of large-area, high-efficiency metallic gratings for use in high-power laser systems is described and a simple theory for optical damage to metallic diffraction gratings is developed.
Journal ArticleDOI
Metal nanoplasmas as bright sources of hard X-ray pulses.
TL;DR: The authors' experiments show a 13-fold enhancement in hard x-ray yield emitted by copper nanoparticle plasmas formed at the focal volume and a simple model explains the observed enhancement quantitatively and provides pointers to the design of structured surfaces for maximizing such emissions.
Journal ArticleDOI
Coherent control of nanoscale localization of ultrafast optical excitation in nanosystems
TL;DR: In this paper, the authors predict and theoretically investigate the unique possibility to control distribution of ultrafast local optical fields in nanosystems in space with nanometer resolution and in time on the femtosecond scale.
References
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Journal ArticleDOI
Optical absorption of small metallic particles
U. Kreibig,L. Genzel +1 more
TL;DR: In this paper, a survey is given of recent results concerning particle-size dependences of the optical plasma resonance absorption and of the FIR absorption of small noble metal particles, and it is shown that the spectra are strongly changed if the particles of a sample interact with each other.
Journal ArticleDOI
The optical kerr effect in small metal particles and metal colloids: The case of gold
TL;DR: In this paper, the authors considered theoretically the various mechanisms contributing to the Kerr nonlinearity in small gold particles, including conduction electron intraband contribution, saturation of direct interband transitions and the change in dielectric constant due to hot photoexcited electrons.
Journal ArticleDOI
Optical properties of ultrafine gold particles
Claes-Göran Granqvist,O. Hunderi +1 more
Journal ArticleDOI
Electronic properties of small metallic particles
TL;DR: In this paper, the quantum size effects in small particles are analyzed theoretically from the point of view of the statistics of discrete energy levels, and the existing experimental results are discussed, where the critical fields in small metallic particles, the magnetic field dependence of their microscopic properties, and fluctuations in small superconductors are discussed.