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| 2. |
- Martz, Dale, et al.
(författare)
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Large area high efficiency broad bandwidth 800 nm dielectric gratings for high energy laser pulse compression
- 2009
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Ingår i: Optics Express. - : Optical Society of America. - 1094-4087. ; 17:26, s. 23809-23816
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Tidskriftsartikel (refereegranskat)abstract
- 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.
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| 3. |
- Menoni, C. S., et al.
(författare)
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Nanoscale resolution microscopy and ablation with extreme ultraviolet lasers
- 2007
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Ingår i: 2007 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2. - 9781424409242 ; , s. 488-489
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Konferensbidrag (refereegranskat)abstract
- We obtain a spatial resolution down to 38 run with full field imaging and laser-ablation systems that exploit the short wavelength and high brightness output from compact extreme ultraviolet lasers in combination with zone plate optics.
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| 4. |
- Rocca, J. J., et al.
(författare)
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Advances in compact high repetition rate soft x-ray lasers
- 2010
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Ingår i: 2010 23RD ANNUAL MEETING OF THE IEEE PHOTONICS SOCIETY. ; , s. 5-6
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Konferensbidrag (refereegranskat)abstract
- We review recent progress in the development of table-top soft x-ray lasers that includes the demonstration of a gain-saturated lambda = 10.9 nm laser, and the first demonstration of an all-diode-pumped soft x-ray laser
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| 5. |
- Rocca, J. J., et al.
(författare)
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Advances in high repetition rate table-top soft X-ray lasers
- 2011
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Ingår i: X-RAY LASERS AND COHERENT X-RAY SOURCES. - : SPIE.
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Konferensbidrag (refereegranskat)abstract
- We discuss recent advances in the development of high repetition rate table-soft soft x-ray lasers resulting from research conducted at Colorado State University. Advancing saturated table-top lasers to shorter wavelengths we report the operation of gain-saturated sub-10 nm table-top lasers at 1 Hz repetition rate. We also present experimental results that show that injection-seeding of solid-target soft x-ray plasma amplifiers reduces the far field divergence by an order of magnitude and to allow for control of the far-field beam characteristics by tailoring the divergence of the seed. We finally discuss progress towards the development of high repetition rate compact all-diode-pumped soft x-ray lasers. We have operated the front end of the diode-pumped soft-ray laser driver at 100Hz repetition rate, obtaining sub-5 ps optical laser pulses of 100 mJ energy.
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| 6. |
- Alessi, D., et al.
(författare)
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Beam Characteristics of an Injection-Seeded Solid-Target Plasma Soft X-Ray Laser
- 2010
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Ingår i: 2010 23RD ANNUAL MEETING OF THE IEEE PHOTONICS SOCIETY. ; , s. 341-342
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Konferensbidrag (refereegranskat)abstract
- We have measured the near-field and far-field profiles (for lambda=13.9 nm) as well as temporal coherence (for lambda=18.9 nm) of injection-seeded and self-seeded solid-target amplifiers. The measurements were compared with model simulations.
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| 7. |
- Alessi, D., et al.
(författare)
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Efficient Excitation of Gain-Saturated Sub-9-nm-Wavelength Tabletop Soft-X-Ray Lasers and Lasing Down to 7.36 nm
- 2011
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Ingår i: Physical Review X. - : American Physical Society. - 2160-3308. ; 1:2
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Tidskriftsartikel (refereegranskat)abstract
- We have demonstrated the efficient generation of sub-9-nm-wavelength picosecond laser pulses of microjoule energy at 1-Hz repetition rate with a tabletop laser. Gain-saturated lasing was obtained at λ=8.85 nm in nickel-like lanthanum ions excited by collisional electron-impact excitation in a precreated plasma column heated by a picosecond optical laser pulse of 4-J energy. Furthermore, isoelectronic scaling along the lanthanide series resulted in lasing at wavelengths as short as λ=7.36 nm. Simulations show that the collisionally broadened atomic transitions in these dense plasmas can support the amplification of subpicosecond soft-x-ray laser pulses.
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| 8. |
- Alessi, D, et al.
(författare)
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Gain-saturated 10.9 nm tabletop laser operating at 1 Hz repetition rate
- 2010
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Ingår i: Optics Letters. - : Optical Society of America. - 0146-9592 .- 1539-4794. ; 35:3, s. 414-6
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Tidskriftsartikel (refereegranskat)abstract
- We report the demonstration of a gain-saturated 10.9 nm tabletop soft x-ray laser operating at 1 Hz repetition rate. Lasing occurs by collisional electron impact excitation in the 4dS01-->4pP11 transition of nickel-like Te in a line-focus plasma heated by a chirped-pulse-amplification Ti:sapphire laser. With an average power of 1muW and pulse energy up to approximately 2microJ, this laser extends the ability to conduct tabletop laser experiments to a shorter wavelength.
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| 9. |
- Alessi, D., et al.
(författare)
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High Energy 13.9 nm Table-top Soft X-ray Laser Operating at 2.5 Hz Repetition Rate
- 2010
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Ingår i: 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS).
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Konferensbidrag (refereegranskat)abstract
- We have demonstrated table-top generation of λ = 13.9 nm laser pulses with 7 μJ energyat 2.5 Hz repetition rate from nickel-like ions in a laser-created plasma that will enable new applications of coherent soft x-ray light on a table-top.
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| 10. |
- Alessi, D., et al.
(författare)
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Spectral Linewidth Measurement of an Injection-Seeded Transient 18.9 nm Soft X-Ray Laser
- 2011
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Ingår i: 2011 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO). - 9781557529107
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Konferensbidrag (refereegranskat)abstract
- The linewidth of an injection-seeded 18.9nm molybdenum soft x-ray laser (SXRL) was measured to be significantly wider than seeded optical field ionization SXRLs that use gaseous targets, an advantage for the development of sub-picosecond SXRLs.
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