Laser ablation of CsI analyzed by delayed extraction
Source abstract
Abstract
Abstract Secondary ion emission from polycrystalline CsI irradiated by pulsed-UV laser (337 nm) is analyzed by time-of-flight (TOF) mass spectrometry. Measurements were performed for different laser intensities and for several delayed extraction times (0–200 ns). The TOF peak shape is characterized by a Gaussian-like structure (fast component), followed by a tail (slow component) that is more pronounced when the extraction field is delayed. A thermal-sputtering uni-dimensional model is employed to describe the solid surface and plasma temperatures as a function of time. Heat diffusion, vapor photo-ionization, radiative emission and plume expansion are considered. Within the approximations used, the model predicts reasonable drift velocities of the plume (≈1.4 km s−1) but very high plasma temperatures (≈105 K). The width of the TOF peak fast component allows determination of the plume temperature during its expansion.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Laser-induced spectroscopy and plasma · Ion-surface interactions and analysis · Diamond and Carbon-based Materials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
Show source-provided references
1. D.B. Chrisey, G.K. Hubler (Eds.), Pulsed Laser Deposition of Thin Films, Wiley, New York, 1994.
2. Lunney · Appl. Surf. Sci. · 1995 · 86 · 7910.1016/0169-4332(94)00368-8 ↗
3. Fähler · Appl. Surf. Sci. · 1996 · 96–98 · 6110.1016/0169-4332(95)00466-1 ↗
4. G.M. Weyl, in: L.J. Radziemski, D.A. Cremers (Eds.), Laser-Induced Plasmas and Applications, Marcel Dekker, New York, 1989 (Chapter 1).
5. Rosen · J. Appl. Phys. · 1982 · 53 · 319010.1063/1.331018 ↗
6. C.R. Phipps, R.W. Dreyfus, Laser ionization mass analysis, in: A. Vertes, R. Gijbels, F. Adams (Eds.), Chemical Analysis Series, vol. 124, Wiley, 1993 (Chapter 4).
7. Piuz · Nucl. Instrum. Meth. A · 1996 · 371 · 9610.1016/0168-9002(95)01442-X ↗
8. Almeida · Nucl. Instrum. Meth. A · 1995 · 367 · 33210.1016/0168-9002(95)00571-4 ↗
9. Breskin · Nucl. Instrum. Meth. A · 1996 · 371 · 11610.1016/0168-9002(95)01145-5 ↗
10. Lunney · Appl. Surf. Sci. · 1998 · 127–129 · 94110.1016/S0169-4332(97)00770-8 ↗
11. Phipps · J. Appl. Phys. · 1998 · 64 · 108310.1063/1.341867 ↗
12. Mao · Appl. Phys. A · 1997 · A64 · 1
13. Valentini · Nucl. Instrum. Meth. A · 2002 · 482 · 23810.1016/S0168-9002(01)01678-3 ↗
14. J.F. Ready, Effects of High-Power Laser Radiation, Academic Press, New York, 1971.
15. H.S. Carslaw, J.C. Jaeger, Conduction of Heat in Solids, Oxford.
16. D.R. Lide (Ed.), CRC Handbook of Chemistry and Physics, CRC Press, Boca Raton, 1995–1996.
17. R.E. Kidder, in: P. Caldirola, H. Knoepfel (Eds.), Proceedings of the International School of Physics, Academic Press, New York, 1971, Course 48, pp. 278–305.
18. Ya.B. Zeldovich, Yu.P. Raizer, Physics of Shock Waves and High-Temperature Hydrodynamics Phenomena, vol. 1, Academic Press, New York, 1966.
19. R.W.P. McWhirter, in: R.H. Huddlestone, S.L. Leonard (Eds.), Plasma Diagnostic Techniques, Academic, New York, 1965 (Chapter 5).
20. G.J. Van Wylen, R.E. Sonntag, Fundamentals of Classical Thermodynamics, Wiley, New York, 1985 (Chapter 10).
21. M.W. Zemansky, Heat and Thermodynamics, McGraw-Hill, New York, 1968 (Chapter 12).
22. V.M. Collado, Ph.D. Dissertation, Catholic University of Rio de Janeiro, 2001.
23. Hanley · J. Mass Spectrom. · 1999 · 34 · 70810.1002/(SICI)1096-9888(199907)34:7<705::AID-JMS845>3.0.CO;2-B ↗