Coherent light generators – Short wavelength laser
Reexamination Certificate
2007-12-17
2010-02-16
Nguyen, Dung T (Department: 2828)
Coherent light generators
Short wavelength laser
C372S022000, C372S030000
Reexamination Certificate
active
07664147
ABSTRACT:
Phase matching high harmonic generation (HHG) uses a single, long duration non-collinear modulating pulse intersecting the driving pulse. A femtosecond driving pulse is focused into an HHG medium (such as a noble gas) to cause high-harmonic generation (HHG), for example in the X-ray region of the spectrum, via electrons separating from and recombining with gas atoms. A non-collinear pulse intersects the driving pulse within the gas, and modulates the field seen by the electrons while separated from their atoms. The modulating pulse is low power and long duration, and its frequency and amplitude is chosen to improve HHG phase matching by increasing the areas of constructive interference between the driving pulse and the HHG, relative to the areas of destructive interference.
REFERENCES:
patent: 6151155 (2000-11-01), Durfee, III et al.
patent: 2008/0137696 (2008-06-01), Zhang et al.
Peatross et al. (submitted IDS NPL document: Selective zoning of high harmonic emission using counter-propagating light; Optic Express, vol. 1, No. 5, 1997).
Shkolnikov, A. et al., Optimal Quasi-Phase-Matching for High-Order Harmonic Generation in Gases and Plasmas, Physical Review A, Dec. 1994, pp. R4461-R4464, vol. 50, No. 6.
Milchberg, H. M. et al., High-Order Frequency Conversion in the Plasma Waveguide, Physical Review Letters, Sep. 1995, pp. 2494-2497, vol. 75, No. 13.
Rundquist, A. et al., Phase-Matched Generation of Coherent Soft X-Rays, Science, May 1998, pp. 1412-1415, vol. 280.
Durfee III, C. G. et al., Phase Matching of High-Order Harmonics in Hollow Waveguides, Physical Review Letters, Sep. 1999, pp. 2187-2190, vol. 83, No. 11.
Peatross, J. et al., Intensity-Dependent Phase-Matching Effects in Harmonic Generation, Journal of Optical Society of America B, May 1995, pp. 863-870, vol. 12, No. 5.
Peatross, J. et al., Selective Zoning of High Harmonic Emission Using Counter-Propagating Light, Optics Express, Sep. 1997, pp. 114-125, vol. 1, No. 5.
Voronov, S. L. et al, Control of Laser High-Harmonic Generation with Counterpropagating Light, Physical Review Letters, Sep. 2001, pp. 133902-1-133902-4, vol. 87, No. 13.
Christov, Ivan P., Enhanced Generation of Attosecond Pulses in Dispersion-Controlled Hollow-Core Fiber, Physical Review A, Oct. 1999, pp. 3244-3250, vol. 60, No. 4.
Christov, I. P. et al., Quasi-Phase Matching of High-Harmonics and Attosecond Pulses in Modulated Waveguides, Optics Express, Nov. 2000, pp. 362-367, vol. 7, No. 11.
Gibson, E. A. et al., Coherent Soft X-Ray Generation in the Water Window with Quasi-Phase Matching, Science, Oct. 2003, pp. 95-98, vol. 302.
Madsen, J. B. et al, High-Order Harmonic Generation in Crossed Laser Beams, Journal of Optical Society America B, Jan. 2003, pp. 166-170, vol. 20, No. 1.
Cohen Oren
Kapteyn Henry C.
Mumane Margaret M.
Bales Jennifer L.
Macheledt Bales & Heidmiller LLP
Nguyen Dung T
Rugents of the University of Colorado a body corporate
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