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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 18 — Sep. 15, 2010
  • pp: 3117–3119

Optical spectroscopy and energy transfer in amorphous AlN-doped erbium and ytterbium ions for applications in laser cavities

Muhammad Maqbool and Tyler R. Corn  »View Author Affiliations


Optics Letters, Vol. 35, Issue 18, pp. 3117-3119 (2010)
http://dx.doi.org/10.1364/OL.35.003117


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Abstract

Sputter-deposited thin-film amorphous AlN : Er ( 1 at . % ) emits at 554 and 561 nm as a result of H 11 / 2 2 I 15 / 2 4 and S 3 / 2 4 I 15 / 2 4 transitions. AlN : Yb ( 1 at . % ) gives a weak emission peak at 966 nm as a result of F 5 / 2 2 F 7 / 2 2 . The codoping of Er and Yb in AlN results in energy transfer from Er + 3 to Yb + 3 and enhances the Yb + 3 emissions by an order of magnitude. Transfer of electrons occurs from the S 3 / 2 4 state of Er + 3 to the F 5 / 2 2 state of Yb + 3 . The weak emission from Yb + 3 , when excited by a 532 nm laser in the absence of Er + 3 , confirms that the luminescence enhancement in ytterbium is due to energy transfer and not to direct green light excitation by the erbium emission. A possibility of population inversion and a four-level laser cavity formation exists in the Er + 3 Yb + 3 system.

© 2010 Optical Society of America

OCIS Codes
(160.4760) Materials : Optical properties
(160.5690) Materials : Rare-earth-doped materials
(230.1150) Optical devices : All-optical devices
(230.3990) Optical devices : Micro-optical devices
(240.6490) Optics at surfaces : Spectroscopy, surface
(160.5293) Materials : Photonic bandgap materials

ToC Category:
Materials

History
Original Manuscript: May 27, 2010
Revised Manuscript: July 21, 2010
Manuscript Accepted: August 26, 2010
Published: September 14, 2010

Citation
Muhammad Maqbool and Tyler R. Corn, "Optical spectroscopy and energy transfer in amorphous AlN-doped erbium and ytterbium ions for applications in laser cavities," Opt. Lett. 35, 3117-3119 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-18-3117


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