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Title: Infrared-x-ray pump-probe spectroscopy of the NO molecule

Abstract

Two color infrared-x-ray pump-probe spectroscopy of the NO molecule is studied theoretically and numerically in order to obtain a deeper insight of the underlying physics and of the potential of this suggested technology. From the theoretical investigation a number of conclusions could be drawn: It is found that the phase of the infrared field strongly influences the trajectory of the nuclear wave packet, and hence, the x-ray spectrum. The trajectory experiences fast oscillations with the vibrational frequency with a modulation due to the anharmonicity of the potential. The dependences of the x-ray spectra on the delay time, the duration, and the shape of the pulses are studied in detail. It is shown that the x-ray spectrum keep memory about the infrared phase after the pump field left the system. This memory effect is sensitive to the time of switching-off the pump field and the Rabi frequency. The phase effect takes maximum value when the duration of the x-ray pulse is one-fourth of the infrared field period, and can be enhanced by a proper control of the duration and intensity of the pump pulse. The manifestation of the phase is different for oriented and disordered molecules and depends strongly on themore » intensity of the pump radiation.« less

Authors:
;  [1]; ; ;  [1];  [2]
  1. Theoretical Chemistry, Roslagstullsbacken 15, Royal Institute of Technology, S-106 91 Stockholm (Sweden)
  2. Departamento de Quimica, Universidade Federal de Minas Gerais, Avenida Antonio Carlos, 6627, CEP-31270-901, Belo Horizonte, Minas Gerais (Brazil)
Publication Date:
OSTI Identifier:
20718372
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 72; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevA.72.012714; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; INFRARED SPECTRA; MODULATION; MOLECULES; NITRIC OXIDE; OSCILLATIONS; POTENTIALS; VIBRATIONAL STATES; WAVE PACKETS; X-RAY SPECTRA; X-RAY SPECTROSCOPY

Citation Formats

Guimaraes, F F, Felicissimo, V C, Departamento de Quimica, Universidade Federal de Minas Gerais, Avenida Antonio Carlos, 6627, CEP-31270-901, Belo Horizonte, Minas Gerais, Kimberg, V, Gel'mukhanov, F, Aagren, H, and Cesar, A. Infrared-x-ray pump-probe spectroscopy of the NO molecule. United States: N. p., 2005. Web. doi:10.1103/PhysRevA.72.012714.
Guimaraes, F F, Felicissimo, V C, Departamento de Quimica, Universidade Federal de Minas Gerais, Avenida Antonio Carlos, 6627, CEP-31270-901, Belo Horizonte, Minas Gerais, Kimberg, V, Gel'mukhanov, F, Aagren, H, & Cesar, A. Infrared-x-ray pump-probe spectroscopy of the NO molecule. United States. https://doi.org/10.1103/PhysRevA.72.012714
Guimaraes, F F, Felicissimo, V C, Departamento de Quimica, Universidade Federal de Minas Gerais, Avenida Antonio Carlos, 6627, CEP-31270-901, Belo Horizonte, Minas Gerais, Kimberg, V, Gel'mukhanov, F, Aagren, H, and Cesar, A. 2005. "Infrared-x-ray pump-probe spectroscopy of the NO molecule". United States. https://doi.org/10.1103/PhysRevA.72.012714.
@article{osti_20718372,
title = {Infrared-x-ray pump-probe spectroscopy of the NO molecule},
author = {Guimaraes, F F and Felicissimo, V C and Departamento de Quimica, Universidade Federal de Minas Gerais, Avenida Antonio Carlos, 6627, CEP-31270-901, Belo Horizonte, Minas Gerais and Kimberg, V and Gel'mukhanov, F and Aagren, H and Cesar, A},
abstractNote = {Two color infrared-x-ray pump-probe spectroscopy of the NO molecule is studied theoretically and numerically in order to obtain a deeper insight of the underlying physics and of the potential of this suggested technology. From the theoretical investigation a number of conclusions could be drawn: It is found that the phase of the infrared field strongly influences the trajectory of the nuclear wave packet, and hence, the x-ray spectrum. The trajectory experiences fast oscillations with the vibrational frequency with a modulation due to the anharmonicity of the potential. The dependences of the x-ray spectra on the delay time, the duration, and the shape of the pulses are studied in detail. It is shown that the x-ray spectrum keep memory about the infrared phase after the pump field left the system. This memory effect is sensitive to the time of switching-off the pump field and the Rabi frequency. The phase effect takes maximum value when the duration of the x-ray pulse is one-fourth of the infrared field period, and can be enhanced by a proper control of the duration and intensity of the pump pulse. The manifestation of the phase is different for oriented and disordered molecules and depends strongly on the intensity of the pump radiation.},
doi = {10.1103/PhysRevA.72.012714},
url = {https://www.osti.gov/biblio/20718372}, journal = {Physical Review. A},
issn = {1050-2947},
number = 1,
volume = 72,
place = {United States},
year = {Fri Jul 15 00:00:00 EDT 2005},
month = {Fri Jul 15 00:00:00 EDT 2005}
}