Absorption of femtosecond laser pulses by atomic clusters

被引：11

作者：

Lin, JQ ^{[1
]}

Zhang, J ^{[1
]}

Li, YJ ^{[1
]}

Chen, LM ^{[1
]}

Lü, TZ ^{[1
]}

Teng, H ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Lab Opt Phys, Beijing 100080, Peoples R China

来源：

ACTA PHYSICA SINICA | 2001年 / 50卷 / 03期

关键词：

atomatic clusters; femtosecond laser; enery absorption efficiency; high energy ions;

D O I：

10.7498/aps.50.457

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Energy absorption by Xe, Ar, He atomic clusters are investigated using laser pulses with 5mJ energy in 150fs duration. Experimental results show that the size of cluster and laser absorption efficiency are strongly dependent on several factors, such as the working pressure of pulse valve, atomic number Z of the gas. Absorption fraction of Xe clusters is as high as 45 % at a laser intensity of 1 x 10(15)W/cm(2) with 20 X 10(5)Pa gas jet backing pressure. Absorption of the atomic clusters is greatly reduced by introducing pre-pulses. Ion energy measurements confirm that the efficient energy deposition results in a plasma with very high ion temperature.

引用

页码：457 / 461

页数：5

共 10 条

[1] High-energy ions produced in explosions of superheated atomic clusters [J].

Ditmire, T ;

Tisch, JWG ;

Springate, E ;

Mason, MB ;

Hay, N ;

Smith, RA ;

Marangos, J ;

Hutchinson, MHR .

NATURE, 1997, 386 (6620) :54-56

[2] Nuclear fusion from explosions of femtosecond laser-heated deuterium clusters [J].

Ditmire, T ;

Zweiback, J ;

Yanovsky, VP ;

Cowan, TE ;

Hays, G ;

Wharton, KB .

NATURE, 1999, 398 (6727) :489-492

[3] Interaction of intense laser pulses with atomic clusters [J].

Ditmire, T ;

Donnelly, T ;

Rubenchik, AM ;

Falcone, RW ;

Perry, MD .

PHYSICAL REVIEW A, 1996, 53 (05) :3379-3402

[4] NONCRYSTALLINE STRUCTURE OF ARGON CLUSTERS .2. MULTILAYER ICOSAHEDRAL STRUCTURE OF AR-N CLUSTERS 50LESS-THANNLESS-THAN750 [J].

FARGES, J ;

DEFERAUDY, MF ;

RAOULT, B ;

TORCHET, G .

JOURNAL OF CHEMICAL PHYSICS, 1986, 84 (06) :3491-3501

[5] CLUSTER ION SOURCES [J].

HAGENA, OF .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1992, 63 (04) :2374-2379

[6] CLUSTER FORMATION IN EXPANDING SUPERSONIC JETS - EFFECT OF PRESSURE, TEMPERATURE, NOZZLE SIZE, AND TEST GAS [J].

HAGENA, OF ;

OBERT, W .

JOURNAL OF CHEMICAL PHYSICS, 1972, 56 (05) :1793-&

[7] MULTIPHOTON-INDUCED X-RAY-EMISSION AT 4-5 KEV FROM XE ATOMS WITH MULTIPLE CORE VACANCIES [J].

MCPHERSON, A ;

THOMPSON, BD ;

BORISOV, AB ;

BOYER, K ;

RHODES, CK .

NATURE, 1994, 370 (6491) :631-634

[8] ABSORPTION OF ULTRASHORT LASER-PULSES BY SOLID TARGETS HEATED RAPIDLY TO TEMPERATURES 1-1000 EV [J].

PRICE, DF ;

MORE, RM ;

WALLING, RS ;

GUETHLEIN, G ;

SHEPHERD, RL ;

STEWART, RE ;

WHITE, WE .

PHYSICAL REVIEW LETTERS, 1995, 75 (02) :252-255

[9] Multi-keV electron generation in the interaction of intense laser pulses with xe clusters [J].

Shao, YL ;

Ditmire, T ;

Tisch, JWG ;

Springate, E ;

Marangos, JP ;

Hutchinson, MHR .

PHYSICAL REVIEW LETTERS, 1996, 77 (16) :3343-3346

[10] FLUORESCENCE EXCITATION SPECTROSCOPY OF XENON CLUSTERS IN THE VUV [J].

WORMER, J ;

GUZIELSKI, V ;

STAPELFELDT, J ;

MOLLER, T .

CHEMICAL PHYSICS LETTERS, 1989, 159 (04) :321-326

← 1 →