Space-time focusing of phase-stabilized nanojoule-level 2.5-cycle pulses to peak intensities >3x10[superscript 13] w/cm[superscript 2] at 80 mhz
Name
Miranda-2009-Space-time focusing of phase-stabilized nanojoule-level 2.5-cycle pulses to peak intensities 31013 wcm2 at 80 mhz.pdf
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128.16 KB
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Checksum (MD5)
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Author(s)
Kaertner, Franz X.
Miranda, Miguel N.
Oliveira, Pedro B.
Bernardo, L. M.
Crespo, Helder M.
Alternative Title
Space-time focusing of phase-stabilized nanojoule-level 2.5-cycle pulses to peak intensities >3x1013 w/cm2 at 80 mhz
Date Issued
August 2009
Journal
European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009
Publisher
Institute of Electrical and Electronics Engineers
Citation
Miranda, M.N. et al. “Space-time focusing of phase-stabilized nanojoule-level 2.5-cycle pulses to peak intensities ≫3×10[superscript 13] W/cm[superscript 2] at 80 MHz.” Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on. 2009. 1. © 2009 IEEE.
Version
Final published version
Abstract
In this work, the authors demonstrate the efficient focusing of 2.5-cycle laser pulses from a phase-stabilized broadband laser oscillator with a repetition rate of 80 MHz (Femtolasers Rainbow) using a simple and compact setup based on octave-spanning double-chirped mirrors to pre-compensate the dispersion of microscope objectives. The beam diameter was kept at <2 mm at the entrance of the objectives in order to minimize undesirable radius-depend group-delay dispersion effects. Temporal characterization was performed with a modified SHG interferometric autocorrelator capable of measuring the pulse duration directly at the focus of the objectives, and the spot size was measured by imaging it with another microscope objective and CCD camera. For an input pulse energy of 2.5 nJ, a 63 x microscope objective (N.A.= 0.85) resulted in clean 6.8 fs (FWHM) pulses with spot sizes as small as 1.1 mum (FWHM).
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/CLEOE-EQEC.2009.5196426
