Ion generation in a low-density plastic foam by interaction with intense femtosecond laser pulses

S. Okihara; T. Zh. Esirkepov; K. Nagai; S. Shimizu; F. Sato; M. Hashida; T. Iida; K. Nishihara; T. Norimatsu; Y. Izawa; S. Sakabe

doi:10.1103/PhysRevE.69.026401

Access by Xinjiang University

Ion generation in a low-density plastic foam by interaction with intense femtosecond laser pulses

S. Okihara¹, T. Zh. Esirkepov^2,*, K. Nagai², S. Shimizu², F. Sato¹, M. Hashida³, T. Iida¹, K. Nishihara², T. Norimatsu² et al.

Y. Izawa² and S. Sakabe³

¹Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita Osaka 565-0871, Japan
²Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita Osaka 565-0871, Japan
³Institute for Chemical Research, Kyoto University, Gokasho, Uji Kyoto 611-0011, Japan

^*Present address: Advanced Photon Research Center, JAERI, Kyoto-fu 619-0215, Japan.

PDF

Phys. Rev. E 69, 026401 – Published 9 February, 2004

DOI: https://doi.org/10.1103/PhysRevE.69.026401

Abstract

Energetic proton generation in low-density plastic $(C_{5} H_{10})$ foam by intense femtosecond laser pulse irradiation has been studied experimentally and numerically. Plastic foam was successfully produced by a sol-gel method, achieving an average density of $10 {m g / c m}^{3} .$ The foam target was irradiated by 100 fs pulses of a laser intensity $1 \times 10^{18} {W / c m}^{2} .$ A plateau structure extending up to 200 keV was observed in the energy distribution of protons generated from the foam target, with the plateau shape well explained by Coulomb explosion of lamella in the foam. The laser-foam interaction and ion generation were studied qualitatively by two-dimensional particle-in-cell simulations, which indicated that energetic protons are mainly generated by the Coulomb explosion. From the results, the efficiency of energetic ion generation in a low-density foam target by Coulomb explosion is expected to be higher than in a gas-cluster target.

References (11)

M. Hegelich et al., Phys. Rev. Lett. 89, 085002 (2002).
K. Nemoto et al., Appl. Phys. Lett. 78, 595 (2001).
S. Okihara et al., J. Nucl. Sci. Technol. 39, 1 (2002).
T. Ditmire et al., Nature (London) 398, 489 (1999).
K. Nishihara et al., Nucl. Instrum. Methods Phys. Res. A 464, 98 (2001).
S. Sakabe et al., Phys. Plasmas 8, 2517 (2001).
T. Ditmire et al., Nature (London) 386, 54 (1997).
K. Nagai et al., Jpn. J. Appl. Phys., Part 1 41, 431 (2002).
H. Schillinger et al., Rev. Laser Eng. 25, 890 (1997).
S. Sakabe et al., in Proceedings of the International Quantum Electronics Conference, Moscow, Russia, 2002, edited by S. N. Bagayev (unpublished).
T. Zh. Esirkepov, Comput. Phys. Commun. 135, 144 (2001).

[c1] M. Hegelich et al., Phys. Rev. Lett. 89, 085002 (2002).

[c2] K. Nemoto et al., Appl. Phys. Lett. 78, 595 (2001).

[c3] S. Okihara et al., J. Nucl. Sci. Technol. 39, 1 (2002).

[c4] T. Ditmire et al., Nature (London) 398, 489 (1999).

[c5] K. Nishihara et al., Nucl. Instrum. Methods Phys. Res. A 464, 98 (2001).

[c6] S. Sakabe et al., Phys. Plasmas 8, 2517 (2001).

[c7] T. Ditmire et al., Nature (London) 386, 54 (1997).

[c8] K. Nagai et al., Jpn. J. Appl. Phys., Part 1 41, 431 (2002).

[c9] H. Schillinger et al., Rev. Laser Eng. 25, 890 (1997).

[c10] S. Sakabe et al., in Proceedings of the International Quantum Electronics Conference, Moscow, Russia, 2002, edited by S. N. Bagayev (unpublished).

[c11] T. Zh. Esirkepov, Comput. Phys. Commun. 135, 144 (2001).

Physical Review E

Export citation

Export citation

Ion generation in a low-density plastic foam by interaction with intense femtosecond laser pulses

Abstract

References (11)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation