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Generation of high harmonics in laser plasmas

Published online by Cambridge University Press:  25 March 2004

I.B. FÖLDES
Affiliation:
KFKI Research Institute for Particle and Nuclear Physics, EURATOM Association, Budapest, Hungary
G. KOCSIS
Affiliation:
KFKI Research Institute for Particle and Nuclear Physics, EURATOM Association, Budapest, Hungary
E. RÁCZ
Affiliation:
KFKI Research Institute for Particle and Nuclear Physics, EURATOM Association, Budapest, Hungary
S. SZATMÁRI
Affiliation:
Department of Experimental Physics, Szeged University, Szeged, Hungary
G. VERES
Affiliation:
KFKI Research Institute for Particle and Nuclear Physics, EURATOM Association, Budapest, Hungary

Abstract

The generation of high harmonics in laser–plasma interactions on the steep density gradients is discussed, especially by using short-pulse UV laser radiation. Low intensity experiments with 5·1015 W/cm2 generate harmonics in the VUV range, and the efficiency can be optimized by modifying the density gradient. To obtain higher harmonics and to clear some disagreements among different results concerning polarization properties of harmonics we switched for higher intensities. Our experimental arrangement makes it possible to obtain a 5·1017 W/cm2 intensity with a prepulse as low as 107 W/cm2 using a table-top system. Preliminary results and future trends for high-harmonics generation with this method are given.

Type
Research Article
Copyright
© 2003 Cambridge University Press

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References

REFERENCES

Bezzerides, B., Jones, R.D. & Forslund, D.W. (1982). Plasma mechanism for ultraviolet harmonic radiation due to intense CO2 light. Phys. Rev. Lett. 49, 202205.Google Scholar
Chambers, D.M., Norreys, P.M., Dangor, A.E., Marjoribanks, R.S., Moustaizis, S., Neely, D., Preston, S.G., Wark, J.S., Watts, I. & Zepf, M. (1998). Feasibility study of high harmonics generation from short wavelength lasers interacting with solid targets. Opt. Commun. 148, 289294.Google Scholar
Chang, Z., Rundquist, A., Wang, H., Murnane, M.M. & Kapteyn, H.C. (1997). Generation of coherent soft X Rays at 2.7 nm using high harmonics. Phys. Rev. Lett. 79, 29672970.Google Scholar
Drescher, M., Hentschel, M., Kienberger, R., Tempea, G., Spielmann, Ch., Reider, G.A., Corkum, P.B. & Krausz, F. (2001). X-ray Pulses approaching the attosecond frontier. Science 291, 19231927.Google Scholar
Földes, I.B., Bakos, J.S., Veres, G., Bakonyi, Z., Nagy, T. & Szatmári, S. (1996). Harmonic generation in a UV laser plasma. IEEE J. Sel. Top. Quantum Electron. 2, 776781.Google Scholar
Földes, I.B., Bakos, J.S., Bakonyi, Z., Nagy, T. & Szatmári, S. (1999). Harmonic generation in plasmas of different density gradients. Phys. Lett. A 258, 312316.Google Scholar
Gál, K. & Varró, S. (2001). Polarization properties of high harmonics generated on solid surfaces. Opt. Commun. 198, 419431.Google Scholar
Gibbon, P. (1996). Harmonic generation by femtosecond laser-solid interaction: A coherent “water-window” light source? Phys. Rev. Lett. 76, 5053.Google Scholar
Ginzburg, V.L. (1961). Propagation of electromagnetic waves in plasma. New York: Gordon and Breach.
Gizzi, L.A., Giulietti, D., Giulietti, A., Audebert, P., Bastiani, S., Geindre, J.P. & Mysyrowicz, A. (1996). Simultaneous measurements of hard x rays and second-harmonic emission in fs laser-target interactions. Phys. Rev. Lett. 76, 22782281.Google Scholar
Ishizawa, A., Inaba, K., Kanai, T., Ozaki, T. & Kuroda, H. (1999). High-order harmonic generation from a solid surface plasma by using a picosecond laser. IEEE J. Quantum Electron. 35, 6065.Google Scholar
Ishizawa, A., Kanai, T., Ozaki, T. & Kuroda, H. (2000). The spatial distribution of high-order harmonics from solid surface plasmas. IEEE J. Quantum Electron. 36, 665668.Google Scholar
Kohlweyer, S., Tsakiris, G.D., Wahlström, C.-G., Tillman, C. & Mercer, I. (1995). Harmonic generation from solid-vacuum interface irradiated at high laser intensities. Opt. Commun. 117, 431438.Google Scholar
Krushelnik, K., Watts, I., Tatarakis, M., Gopal, A., Wagner, U., Beg, F.N., Clark, E.L., Clarke, R.J., Dangor, A.E., Norreys, P.A., Wei, M.-S. & Zepf, M. (2002). Using self-generated harmonics as a diagnostic of high intensity laser-produced plasmas. Plasma Phys. Control. Fusion 44, B233B245.Google Scholar
Lichters, R., Meyer-ter-Vehn, J. & Pukhov, A. (1996). Short-pulse laser harmonics from oscillating plasma surfaces driven at relativistic intensities. Phys. Plasmas 3, 34253437.Google Scholar
Max, C.E. (1982). Physics of the coronal plasma in laser fusion targets. Laser-Plasma Interactions (Balian, R. & Adam, J.-C., Eds.), p. 301. Amsterdam: North-Holland.
Norreys, P., Zepf, M., Moustaizis, S., Fews, A.P., Zhang, J., Lee, P., Bakarezos, M., Danson, C., Dyson, A., Gibbon, P., Loukakos, P., Neely, D., Walsh, F.N., Wark, J.S. & Dangor, A.E. (1996). Efficient extreme UV harmonics generated from picosecond laser pulse interactions with solid targets. Phys. Rev. Lett. 76, 18321835.Google Scholar
Papadogiannis, N.A., Witzel, B., Kalpouzos, C. & Charalambidis, D. (1999). Observation of attosecond light localization in higher order harmonic generation. Phys. Rev Lett. 83, 42894292.Google Scholar
Spielmann, Ch., Burnett, N.H., Sartania, S., Koppitach, R., Schnürer, M., Kan, C., Lenzner, M., Wobrauschek, P. & Krausz, F. (1997). Generation of coherent x-rays in the water window using 5-femtosecond laser pulses. Science 278, 661664.Google Scholar
Szatmári, S. (1994). High-brightness ultraviolet excimer lasers. Appl. Phys. B 58, 211223.Google Scholar
Tatarakis, M., Watts, I., Beg, F.N., Clark, E.L., Dangor, A.E., Gopal, A., Haines, M.G., Norreys, P.A., Wagner, U., Wei, M.-S., Zepf, M. & Krushelnick, K. (2002). Measuring huge magnetic fields. Nature 415, 280.Google Scholar
Veres, G., Bakos, J.S., Földes, I.B., Gál, K., Juhász, Z., Kocsis, G. & Szatmári, S. (1999). Polarization of harmonics generated by ultrashort KrF-laser pulses on solid surfaces. Europhys. Lett. 48, 390396.Google Scholar
von der Linde, D., Schulz, H., Engers, T. & Schüler, H. (1992). Second harmonic generation in plasmas produced by intense femtosecond laser pulses. IEEE J. Quantum Electron. 28, 23882397.Google Scholar
von der Linde, D., Engers, T., Jenke, G., Agostini, P., Grillon, G., Nibbering, E., Mysyrowicz, A. & Antonetti, A. (1995). Generation of high-order harmonics from solid surfaces by intense femtosecond laser pulses. Phys. Rev. A 52, R25R27.Google Scholar
Zepf, M., Tsakiris, G.D., Pretzler, G., Watts, I., Chambers, D.M., Norreys, P.A., Andiel, U., Dangor, A.E., Eidmann, K., Gahn, C., Machacek, A., Wark, J.S. & Witte, K. (1998). Role of the plasma scale length in the harmonic generation from solid targets. Phys. Rev. E 58, R5253R5256.Google Scholar