Journal of Nuclear Science, Engineering and Technology (JONSAT)
In cooperation with the Iranian Nuclear Society

The effect of coherence time of X-ray laser pulses on the nuclear-state population transfer in 97Tc using adiabatic passage

Document Type : Research Paper

Authors

M Saadati- Niari
B Nedaee- Shekarab
https://doi.org/10.24200/nst.2019.1023
Abstract
The effect of the coherence time of X-ray laser pulses on the population transfer in 97Tc with two ground states and one excited state is investigated. In this study, two X-ray laser pulses drive the population transfer in a nuclear three-level system via the quantum optics technique of the stimulated Raman adiabatic passage. The short wavelengths, which is needed to satisfy the resonance conditions, are achieved by using an accelerated nuclear beam, interacting with two incoming X-ray pulses. It is found that the transfer efficiency decreases for laser pulses with short coherence time. Finally, the effect of laser pulses intensity and pulse delay variations on the population transfer for different coherence time values of laser pulses is studied. For the numerical study we have used the Master equation. The decoherence effects that occur due to spontaneous emission of the excited state and short coherence time of X-ray laser pulses (dephasing) are considered in the Master equation.

Highlights

1. V. Amendola, and M. Meneghetti, Laser ablation synthesis in solution and size manipulation of noble metal nanoparticles,  Phys. Chem. Chem. Phys. 11,3805 (2009).

2. S. Cheng-Yu et al.  Zhigilei Generation of Subsurface Voids, Incubation Effect, and Formation of Nanoparticles in Short Pulse Laser Interactions with Bulk Metal Targets in Liquid: Molecular Dynamics Study,  J. Phys. Chem. C  121,16549 (2017).

3. V. Oliveira, and R. Vilar, Finite element simulation of pulsed laser ablation of titanium carbide, Applied Surface Science 253,7810 (2007).

4. H. S. Lim, and J. Yoo, FEM based simulation of the pulsed laser ablation process in nanosecond fields, Journal of Mechanical Science and Technology 7,1811 (2011).

5. F.J. Al-Maliki, Detection of Random Laser Action from Silica Xerogel Matrices Containing Rhodamine 610 Dye and Titanium Dioxide Nanoparticles,  Advances in Materials Physics and Chemistry 2, 110 (2012).

6. A. M. Brito-Silva et al. Random laser action in dye solutions containing Stöber silica nanoparticles, Journal of Applied Physics 108, 033508 (2010).

7. F. Luan et al. Lasing in nanocomposite random media, Nano Today  10, 168 (2015).

8. A. Bogaerts et al. Laser ablation for analytical sampling: what can we learn from modeling,Spectrochimica Acta Part B 58, 1867 (2003).

9 Z. Xianzhong et al. Ultraviolet femtosecond and nanosecond laser ablation of silicon : ablation efficiency and laser-induced plasma expansion, (2004).

10. J. Jeon et al. The Effect of Laser Pulse Widths on Laser-Ag Nanoparticle Interaction: Femto- to Nanosecon, Lasers Appl. Sci. 8, 112 (2018).

Keywords

vCoherence time
Nuclear states
X-ray laser
Adiabatic passage
1. V. Amendola, and M. Meneghetti, Laser ablation synthesis in solution and size manipulation of noble metal nanoparticles,  Phys. Chem. Chem. Phys. 11,3805 (2009).
2. S. Cheng-Yu et al.  Zhigilei Generation of Subsurface Voids, Incubation Effect, and Formation of Nanoparticles in Short Pulse Laser Interactions with Bulk Metal Targets in Liquid: Molecular Dynamics Study,  J. Phys. Chem. C  121,16549 (2017).
3. V. Oliveira, and R. Vilar, Finite element simulation of pulsed laser ablation of titanium carbide, Applied Surface Science 253,7810 (2007).
4. H. S. Lim, and J. Yoo, FEM based simulation of the pulsed laser ablation process in nanosecond fields, Journal of Mechanical Science and Technology 7,1811 (2011).
5. F.J. Al-Maliki, Detection of Random Laser Action from Silica Xerogel Matrices Containing Rhodamine 610 Dye and Titanium Dioxide Nanoparticles,  Advances in Materials Physics and Chemistry 2, 110 (2012).
6. A. M. Brito-Silva et al. Random laser action in dye solutions containing Stöber silica nanoparticles, Journal of Applied Physics 108, 033508 (2010).
7. F. Luan et al. Lasing in nanocomposite random media, Nano Today  10, 168 (2015).
8. A. Bogaerts et al. Laser ablation for analytical sampling: what can we learn from modeling,Spectrochimica Acta Part B 58, 1867 (2003).
9 Z. Xianzhong et al. Ultraviolet femtosecond and nanosecond laser ablation of silicon : ablation efficiency and laser-induced plasma expansion, (2004).
10. J. Jeon et al. The Effect of Laser Pulse Widths on Laser-Ag Nanoparticle Interaction: Femto- to Nanosecon, Lasers Appl. Sci. 8, 112 (2018).

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