Hot ion generation from nanostructured surfaces under intense femtosecond laser irradiation

被引：26

作者：

Bagchi, S. ^{[1
]}

Kiran, P. Prem ^{[1
]}

Bhuyan, M. K. ^{[1
]}

Bose, S. ^{[1
]}

Ayyub, P. ^{[1
]}

Krishnamurthy, M. ^{[1
]}

Kumar, G. Ravindra ^{[1
]}

机构：

[1] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 14期

关键词：

D O I：

10.1063/1.2715108

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Studies of ion emission from nanostructured metallic surfaces excited by intense (0.5-6.3x10(16) W cm(-2)) 50 fs laser demonstrate that "hotter" electrons need not to give rise hotter ions, contrary to conventional expectation. Such surfaces produce twice as many ions as planar surfaces in the moderate energy regime (16-75 keV), but their yield in the higher energy range (75-2000 keV) is substantially lower. Surface modulations also influence ion beam divergence.

引用

页数：3

共 19 条

[1] Synthesis of nanocrystalline material by sputtering and laser ablation at low temperatures [J].

Ayyub, P ;

Chandra, R ;

Taneja, P ;

Sharma, AK ;

Pinto, R .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2001, 73 (01) :67-73

[2] Generation of fluxes of highly charged heavy ions from a picosecond laser-produced plasma [J].

Badziak, J ;

Parys, P ;

Vankov, AB ;

Wolowski, J ;

Woryna, E .

APPLIED PHYSICS LETTERS, 2001, 79 (01) :21-23

[3] Study of particle acceleration of Cu plasma [J].

Belloni, F ;

Doria, D ;

Lorusso, A ;

Nassisi, V .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2004, 75 (11) :4763-4768

[4] THEORY OF HOT-ELECTRON SPECTRA AT HIGH LASER INTENSITY [J].

FORSLUND, DW ;

KINDEL, JM ;

LEE, K .

PHYSICAL REVIEW LETTERS, 1977, 39 (05) :284-288

[5] Proton beams generated with high-intensity lasers:: Applications to medical isotope production [J].

Fritzler, S ;

Malka, V ;

Grillon, G ;

Rousseau, JP ;

Burgy, F ;

Lefebvre, E ;

d'Humières, E ;

McKenna, P ;

Ledingham, KWD .

APPLIED PHYSICS LETTERS, 2003, 83 (15) :3039-3041

[6] Laser acceleration of quasi-monoenergetic MeV ion beams [J].

Hegelich, BM ;

Albright, BJ ;

Cobble, J ;

Flippo, K ;

Letzring, S ;

Paffett, M ;

Ruhl, H ;

Schreiber, J ;

Schulze, RK ;

Fernández, JC .

NATURE, 2006, 439 (7075) :441-444

[7] Engineering clusters for table-top acceleration of ions [J].

Jha, J ;

Mathur, D ;

Krishnamurthy, M .

APPLIED PHYSICS LETTERS, 2006, 88 (04) :1-3

[8] Multispecies ion acceleration off laser-irradiated water droplets [J].

Kemp, AJ ;

Ruhl, H .

PHYSICS OF PLASMAS, 2005, 12 (03) :1-10

[9]

Kruer W.L, 1988, PHYS LASER PLASMA IN, P39

[10] Effect of plasma scale length on multi-MeV proton production by intense laser pulses [J].

Mackinnon, AJ ;

Borghesi, M ;

Hatchett, S ;

Key, MH ;

Patel, PK ;

Campbell, H ;

Schiavi, A ;

Snavely, R ;

Wilks, SC ;

Willi, O .

PHYSICAL REVIEW LETTERS, 2001, 86 (09) :1769-1772

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