Efficient x-ray line production from laser excited CF2Cl2 clusters. Mixed cluster formation and control of the x-ray line yield

被引：9

作者：

Gordienko, V. M. ^{[1
,2
]}

Dzhidzhoev, M. S. ^{[1
,2
]}

Zhvaniya, I. A. ^{[1
,2
]}

Trubnikov, D. N. ^{[2
,3
]}

Fedorov, D. O. ^{[1
,2
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Ctr Int Laser, Moscow 119899, Russia

[3] Moscow MV Lomonosov State Univ, Fac Chem, Moscow 119991, Russia

来源：

LASER PHYSICS LETTERS | 2014年 / 11卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

femtosecond laser; mixed clusters; x-rays; CARRIER GAS; GENERATION; PULSES; BEAMS; EXCITATION; SCATTERING; SF6; AR;

D O I：

10.1088/1612-2011/11/3/036003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on effective x-ray generation under excitation of clusters of polyatomic CF2Cl2 molecules by femtosecond laser radiation of moderate intensity I approximate to 5 x 10(15) W cm(-2) (E approximate to 5 mJ). The maximal laser energy conversion efficiency to chlorine x-ray lines (E = 2.6-2.8 keV) reached 2 x 10(-5) when the CF2Cl2 clusters were formed in the presence of the carrier gas helium. It was demonstrated that the spectrum of laser-induced x-rays can be used to detect mixed clusters, appearing in a 3% mixture of CF2Cl2 with Ar. We proposed adding a light thermalizing gas to the mixture, i.e., using a ternary mixture CF2Cl2-Ar-He, to control the fraction of components that the mixed clusters are composed of. We have given the first demonstration of a dual-energy x-ray source with a tunable line amplitude that is controlled by the helium fraction in the mixture.

引用

收藏

页数：5

相关论文

共 20 条

[1] HOMOGENEOUS NUCLEATION OF SULFUR-HEXAFLUORIDE CLUSTERS IN LAVAL NOZZLE MOLECULAR-BEAMS [J].

ABRAHAM, O ;

KIM, SS ;

STEIN, GD .

JOURNAL OF CHEMICAL PHYSICS, 1981, 75 (01) :402-411

[2] Self-focusing of intense laser pulses in a clustered gas [J].

Alexeev, I ;

Antonsen, TM ;

Kim, KY ;

Milchberg, HM .

PHYSICAL REVIEW LETTERS, 2003, 90 (10) :4-103402

[3] Laser ultraviolet fragmentation of homogeneous (CF3I)n clusters in a molecular beam and (CF3I)n clusters inside of large (Xe)m clusters or on their surface [J].

Apatin, V. M. ;

Lokhman, V. N. ;

Makarov, G. N. ;

Ogurok, D. D. ;

Petin, A. N. ;

Ryabov, E. A. .

JETP LETTERS, 2013, 97 (12) :697-703

[4] Generation of Quantum Beams in Large Clusters Irradiated by Super-Intense, High-Contrast Femtosecond Laser Pulses [J].

Faenov, A. Ya. ;

Pikuz, T. A. ;

Fukuda, Y. ;

Skobelev, I. Yu. ;

Nakamura, T. ;

Bulanov, S. V. ;

Hayashi, Y. ;

Kotaki, H. ;

Pirozhkov, A. S. ;

Kawachi, T. ;

Chen, L. M. ;

Zhang, L. ;

Yan, W. C. ;

Yuan, D. W. ;

Mao, J. Y. ;

Wang, Z. H. ;

Ma, J. L. ;

Fortov, V. E. ;

Kato, Y. ;

Kando, M. .

CONTRIBUTIONS TO PLASMA PHYSICS, 2013, 53 (02) :148-160

[5] Diagnostics of the early stage of the heating of clusters by a femtosecond laser pulse from the spectra of hollow ions [J].

Faenov, A. Ya. ;

Skobelev, I. Yu. ;

Pikuz, T. A. ;

Fortov, V. E. ;

Boldarev, A. S. ;

Gasilov, V. A. ;

Chen, L. M. ;

Zhang, L. ;

Yan, W. C. ;

Yuan, D. W. ;

Mao, J. Y. ;

Wang, Z. H. ;

Colgan, J. ;

Abdallah, J., Jr. .

JETP LETTERS, 2011, 94 (03) :171-176

[6] Generation of iodine L-shell X-rays under excitation of large CF3I clusters by femtosecond laser radiation [J].

Gordienko, V. M. ;

Dzhidzhoev, M. S. ;

Zhvaniya, I. A. ;

Pribytkov, A. V. ;

Trubnikov, D. N. ;

Fedorov, D. O. .

QUANTUM ELECTRONICS, 2012, 42 (11) :957-958

[7] Effective generation of characteristic K-rays from large laser-excited SF6 clusters in the presence of an Ar carrier gas [J].

Gordienko, V. M. ;

Djidjoev, M. S. ;

Zhvaniya, I. A. ;

Petukhov, V. P. ;

Platonenko, V. T. ;

Trubnikov, D. N. ;

Khomenko, A. S. .

JETP LETTERS, 2010, 91 (07) :329-335

[8] Hard X-ray generation and plasma filament formation under interaction of femtosecond laser pulses with large molecular clusters [J].

Gordienko, Vyacheslav M. ;

Dzhidzhoev, Murat S. ;

Zhvaniya, Irina A. ;

Platonenko, Viktor T. ;

Trubnikov, Dmitriy N. ;

Fedorov, Denis O. .

EUROPEAN PHYSICAL JOURNAL D, 2013, 67 (03)

[9] Mie scattering from submicron-sized CO2 clusters formed in a supersonic expansion of a gas mixture [J].

Jinno, S. ;

Fukuda, Y. ;

Sakaki, H. ;

Yogo, A. ;

Kanasaki, M. ;

Kondo, K. ;

Faenov, A. Ya. ;

Skobelev, I. Yu. ;

Pikuz, T. A. ;

Boldarev, A. S. ;

Gasilov, V. A. .

OPTICS EXPRESS, 2013, 21 (18) :20656-20674

[10] EVIDENCE FOR MIXED CLUSTERS FORMED DURING SULFUR-HEXAFLUORIDE EXPANSIONS IN AN ARGON CARRIER GAS [J].

KIM, SS ;

STEIN, GD .

JOURNAL OF APPLIED PHYSICS, 1980, 51 (12) :6419-6421