NDLI: Er3+-doped sol–gel SnO2 for optical laser and amplifier applications

Content Provider	Springer Nature Link
Author	Bouzidi, C. Moadhen, A. Elhouichet, H. Oueslati, M.
Copyright Year	2008
Abstract	Erbium-doped tin dioxide (SnO2:Er3+) was obtained by the sol–gel method. Spectroscopic properties of the SnO2:Er3+ are analyzed from the Judd–Ofelt (JO) theory. The JO model has been applied to absorption intensities of Er3+ (4f11) transitions to establish the so-called Judd–Ofelt intensity parameters: Ω2, Ω4, and Ω6. With the weak spectroscopic quality factors Ω4/Ω6, we expect a relatively prominent infrared laser emission. The intensity parameters are used to determine the spontaneous emission probabilities of some relevant transitions, the branching ratios, and the radiative lifetimes of several excited states of Er3+. The emission cross section (1.31×10-20 cm2) is evaluated at 1.54 μm and was found to be relatively high compared to that of erbium in other systems. Efficient green and red up-conversion luminescence were observed, at room temperature, using a 798-nm excitation wavelength. The green up-conversion emission is mainly due to the excited state absorption from 4 I 11/2, which populates the 4 F 3/2,5/2 states. The red up-conversion emission is due to the energy transfer process described by Er3+ (4I13/2)+Er3+(4I11/2)→Er3+(4F9/2)+Er3+ (4 I 15/2) and the cross-relaxation process. The efficient visible up-conversion and infrared luminescence indicate that Er3+-doped sol–gel SnO2 is a promising laser and amplifier material.
Starting Page	465
Ending Page	469
Page Count	5
File Format	PDF
ISSN	09462171
Journal	Applied Physics B
Volume Number	90
Issue Number	3-4
e-ISSN	14320649
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-01-19
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physics and Applied Physics in Engineering Optical Spectroscopy, Ultrafast Optics Quantum Optics, Quantum Electronics, Nonlinear Optics Laser Technology and Physics, Photonics Physical Chemistry Electromagnetism, Optics and Lasers
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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