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Large area high efficiency broad bandwidth 800 nm dielectric gratings for high energy laser pulse compression
Colorado State University.
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2009 (English)In: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 17, no 26, 23809-23816 p.Article in journal (Refereed) Published
Abstract [en]

We have demonstrated broad bandwidth large area (229 mm x 114 mm) multilayer dielectric diffraction gratings for the efficient compression of high energy 800 nm laser pulses at high average power. The gratings are etched in the top layers of an aperiodic (Nb0.5Ta0.5)2O5-SiO2 multilayer coating deposited by ion beam sputtering. The mean efficiency of the grating across the area is better than 97% at the center wavelength and remains above 96% at wavelengths between 820 nm and 780 nm. The gratings were used to compress 5.5 J pulses from a Ti:sapphire laser with an efficiency above 80 percent.

Place, publisher, year, edition, pages
Optical Society of America, 2009. Vol. 17, no 26, 23809-23816 p.
National Category
Atom and Molecular Physics and Optics
Research subject
SRA - E-Science (SeRC)
Identifiers
URN: urn:nbn:se:kth:diva-85960DOI: 10.1364/OE.17.023809ISI: 000273156200049PubMedID: 20052091OAI: oai:DiVA.org:kth-85960DiVA: diva2:500274
Funder
Swedish e‐Science Research Center
Note
QC 20120306Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2017-12-07Bibliographically approved
In thesis
1. DEVELOPMENT OF A HIGH ENERGY TI:SAPPHIRE LASER FOR THE EXCITATION OF EXTREME ULTRAVIOLET LASERS
Open this publication in new window or tab >>DEVELOPMENT OF A HIGH ENERGY TI:SAPPHIRE LASER FOR THE EXCITATION OF EXTREME ULTRAVIOLET LASERS
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This dissertation describes the design, construction and characterization of a high energy chirped-pulse amplification Titanium-Sapphire laser system for the excitation of Extreme Ultraviolet (EUV) lasers. Compact EUV lasers have made possible nano-scale imaging, dense plasma diagnostics and photo-chemistry and photo-physics studies. They also have the potential to make possible a variety of new studies of surfaces and materials and enable the development of unique metrology and processing tools for industry. The components developed to realize high energy operation of the Titanium-Sapphire laser include the development of a Nd:Glass zig-zag slab pump laser and novel 800 nm multi-layer dielectric diffraction gratings for picosecond compression.

The Titanium-Sapphire laser was used to pump several table-top EUV lasers. Increased average power operation of a 13.9 nm nickel-like silver laser generating 20 ?W was demonstrated. This is the highest average power obtained from a compact EUV laser to date. Injection seeding of the 13.9 nm EUV amplifier produced laser beams with greatly improved beam characteristics which includes a large reduction in beam divergence and a near Gaussian far-field profile. The laser was also used to pump a gain-saturated table-top laser at 10.9 nm in nickel-like tellurium.

Place, publisher, year, edition, pages
ProQuest/UMI, 2010. 176 p.
National Category
Atom and Molecular Physics and Optics
Research subject
SRA - E-Science (SeRC)
Identifiers
urn:nbn:se:kth:diva-86034 (URN)
Public defence
2010-12-17, Fort Collins, 10:00 (English)
Supervisors
Funder
Swedish e‐Science Research Center
Note
QC 20120213Available from: 2012-02-14 Created: 2012-02-13 Last updated: 2012-02-14Bibliographically approved

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