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Title: Cr{sup 3+}{r_arrow}Nd{sup 3+} energy transfer and Nd{sup 3+} laser action studies of La{sub 3}Ga{sub 5}SiO{sub 14}:Cr{sup 3+}:Nd{sup 3+} co-doped crystal

Abstract

Energy transfer between Cr{sup 3+} and Nd{sup 3+} ions has been investigated in the 4.2--300-K temperature range by using steady-state and site-selective time-resolved laser spectroscopy. Radiative and nonradiative energy transfer has been studied from the time-resolved emission spectra and the donor fluorescence decays. The transfer efficiency was calculated as a function of temperature by using the Cr{sup 3+} lifetimes of the single doped and co-doped samples. Laser experiments were carried out in a diffusive cavity by pumping a co-doped rod 54 mm long and 5 mm in diameter with Xenon flashlamps. The laser spectral emission shows a complex structure which varies as a function of pump energy. The temporal evolution of the laser spectrum is discussed in terms of a simple four-level spectral rate-equation laser model which takes into account the existence of two main broad Nd{sup 3+} site distributions with a large spectral overlap.

Authors:
; ; ;  [1]
  1. Escuela Tecnica Superior de Ingenieros Industriales y de Telecommunicacion, Bilbao (Spain). Dept. de Fisica Aplicada I
Publication Date:
Sponsoring Org.:
Comision Interministerial de Ciencia y Tecnologia (Spain)
OSTI Identifier:
471090
Resource Type:
Journal Article
Journal Name:
IEEE Journal of Quantum Electronics
Additional Journal Information:
Journal Volume: 33; Journal Issue: 3; Other Information: PBD: Mar 1997
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; LASER MATERIALS; SOLID STATE LASERS; ENERGY TRANSFER; CHROMIUM IONS; NEODYMIUM IONS; DOPED MATERIALS; OPTICAL PUMPING; EMISSION SPECTRA

Citation Formats

Azkargorta, J, Iparraguirre, I, Balda, R, and Fernandez, J. Cr{sup 3+}{r_arrow}Nd{sup 3+} energy transfer and Nd{sup 3+} laser action studies of La{sub 3}Ga{sub 5}SiO{sub 14}:Cr{sup 3+}:Nd{sup 3+} co-doped crystal. United States: N. p., 1997. Web. doi:10.1109/3.556018.
Azkargorta, J, Iparraguirre, I, Balda, R, & Fernandez, J. Cr{sup 3+}{r_arrow}Nd{sup 3+} energy transfer and Nd{sup 3+} laser action studies of La{sub 3}Ga{sub 5}SiO{sub 14}:Cr{sup 3+}:Nd{sup 3+} co-doped crystal. United States. https://doi.org/10.1109/3.556018
Azkargorta, J, Iparraguirre, I, Balda, R, and Fernandez, J. Sat . "Cr{sup 3+}{r_arrow}Nd{sup 3+} energy transfer and Nd{sup 3+} laser action studies of La{sub 3}Ga{sub 5}SiO{sub 14}:Cr{sup 3+}:Nd{sup 3+} co-doped crystal". United States. https://doi.org/10.1109/3.556018.
@article{osti_471090,
title = {Cr{sup 3+}{r_arrow}Nd{sup 3+} energy transfer and Nd{sup 3+} laser action studies of La{sub 3}Ga{sub 5}SiO{sub 14}:Cr{sup 3+}:Nd{sup 3+} co-doped crystal},
author = {Azkargorta, J and Iparraguirre, I and Balda, R and Fernandez, J},
abstractNote = {Energy transfer between Cr{sup 3+} and Nd{sup 3+} ions has been investigated in the 4.2--300-K temperature range by using steady-state and site-selective time-resolved laser spectroscopy. Radiative and nonradiative energy transfer has been studied from the time-resolved emission spectra and the donor fluorescence decays. The transfer efficiency was calculated as a function of temperature by using the Cr{sup 3+} lifetimes of the single doped and co-doped samples. Laser experiments were carried out in a diffusive cavity by pumping a co-doped rod 54 mm long and 5 mm in diameter with Xenon flashlamps. The laser spectral emission shows a complex structure which varies as a function of pump energy. The temporal evolution of the laser spectrum is discussed in terms of a simple four-level spectral rate-equation laser model which takes into account the existence of two main broad Nd{sup 3+} site distributions with a large spectral overlap.},
doi = {10.1109/3.556018},
url = {https://www.osti.gov/biblio/471090}, journal = {IEEE Journal of Quantum Electronics},
number = 3,
volume = 33,
place = {United States},
year = {1997},
month = {3}
}