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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 19 — Oct. 1, 2013
  • pp: 3731–3734

Upconversion emissions induced by 1550 nm in near-stoichiometric Er:LiNbO3 crystal

Yannan Qian, Rui Wang, Baofu Zhang, and Biao Wang  »View Author Affiliations

Optics Letters, Vol. 38, Issue 19, pp. 3731-3734 (2013)

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To increase the photovoltaic efficiency of solar cells, green and red upconversion (UC) emissions produced at an excitation of 1550 nm were investigated. A drastically enhanced red UC emission was observed in near-stoichiometric LiNbO3 crystal heavily doped with Er3+ ions (Er:NSLN). Raman spectra showed that the maximum phonon energy shifted from 631cm1 in Er3+-doped congruent LiNbO3 (Er:CLN) to 871cm1 in Er:NSLN crystal. The time decay of the S3/24I15/24 transition suggested that the Er3+ cluster sites (ErLi2+-ErNb2) were dissociated in the Er:NSLN crystal. The visible UC luminescence converted from near infrared at the wavelength of 1550 nm was important to enlarge the solar spectrum response of solar cell.

© 2013 Optical Society of America

OCIS Codes
(040.5350) Detectors : Photovoltaic
(160.3730) Materials : Lithium niobate
(190.7220) Nonlinear optics : Upconversion

ToC Category:
Nonlinear Optics

Original Manuscript: June 4, 2013
Revised Manuscript: August 19, 2013
Manuscript Accepted: August 20, 2013
Published: September 17, 2013

Yannan Qian, Rui Wang, Baofu Zhang, and Biao Wang, "Upconversion emissions induced by 1550 nm in near-stoichiometric Er:LiNbO3 crystal," Opt. Lett. 38, 3731-3734 (2013)

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