Time-resolved imaging and optical spectroscopy of plasma plumes during pulsed laser material deposition

被引：2

作者：

Sausa, Rosario C. ^{[1
]}

机构：

[1] US Army Res Lab, RDRL WML B, Aberdeen, MD 21005 USA

来源：

APPLIED OPTICS | 2017年 / 56卷 / 03期

关键词：

BARIUM STRONTIUM-TITANATE; THIN-FILMS; TRANSITION-PROBABILITIES; ABLATION; LIBS; PHOTOFRAGMENTATION; DIAGNOSTICS; YBA2CU3O7-X; IONIZATION; NM;

D O I：

10.1364/AO.56.00B123

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We employ fast imaging photography and emission spectroscopy to study plasma plumes resulting from the 248-nm ablation of barium strontium titanate, and we utilize x-ray diffraction analysis and scanning electron microscopy to characterize the deposited thin films. Hydrodynamic plume analyses yield initial velocities of approximately 20 km/s, whereas spectral simulations of the Ba I lines between 739 and 770 nm yield temperatures of approximately 17000 K at early times in vacuum. Analyses of the Stark broadened Ba II lines at 614 and 649 nm reveal an electron number density of approximately 10(+18) cm(-3) near the surface. Several Pa of oxygen reduces these values while improving the film quality.

引用

页码：B123 / B133

页数：11

共 58 条

[11] Chrisey D. B., 1994, Pulsed Laser Deposition of Thin Films
[12] Laser deposition of polymer and biomaterial films
Chrisey, DB
Piqué, A
McGill, RA
Horwitz, JS
Ringeisen, BR
Bubb, DM
Wu, PK
[J]. CHEMICAL REVIEWS, 2003, 103 (02) : 553 - 576
[13] Enhanced dielectric properties from barium strontium titanate films with strontium titanate buffer layers
Cole, M. W.
Ngo, E.
Hubbard, C.
Hirsch, S. G.
Ivill, M.
Sarney, W. L.
Zhang, J.
Alpay, S. P.
[J]. JOURNAL OF APPLIED PHYSICS, 2013, 114 (16)
[14] CORLISS CH, 1962, MONOGRAPH, V53
[15] Characteristics of the surface layer of barium strontium titanate thin films deposited by laser ablation
Craciun, V
Singh, RK
[J]. APPLIED PHYSICS LETTERS, 2000, 76 (14) : 1932 - 1934
[16] Local Thermodynamic Equilibrium in Laser-Induced Breakdown Spectroscopy: Beyond the McWhirter criterion
Cristoforetti, G.
De Giacomo, A.
Dell'Aglio, M.
Legnaioli, S.
Tognoni, E.
Palleschi, V.
Omenetto, N.
[J]. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2010, 65 (01) : 86 - 95
[17] Compilation of wavelengths, energy levels, and transition probabilities for BaI and BaII
Curry, JJ
[J]. JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 2004, 33 (03) : 725 - 746
[18] PRODUCT STATE ANALYSIS OF BAO FROM REACTIONS BA+CO2 AND BA+O2
DAGDIGIAN, PJ
CRUSE, HW
SCHULTZ, A
ZARE, RN
[J]. JOURNAL OF CHEMICAL PHYSICS, 1974, 61 (11) : 4450 - 4465
[19] Stark broadening of Ba I and Ba II spectral lines
Dimitrijevic, MS
SahalBrechot, S
[J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1997, 122 (01): : 163 - 166
[20] Electron-impact broadening parameters for Be II, Sr II, and Ba II spectral lines
Duan, B.
Bari, M. A.
Wu, Z. Q.
Yan, J.
Li, Y. M.
[J]. ASTRONOMY & ASTROPHYSICS, 2013, 555

← 1 2 3 4 5 6 →