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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 6 — Mar. 14, 2011
  • pp: 5620–5626

Upconversion ultraviolet random lasing in Nd3+ doped fluoroindate glass powder

Marcos A. S. de Oliveira, Cid B. de Araújo, and Younes Messaddeq  »View Author Affiliations

Optics Express, Vol. 19, Issue 6, pp. 5620-5626 (2011)

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An upconversion random laser (RL) operating in the ultraviolet is reported for Nd3+ doped fluoroindate glass powder pumped at 575 nm. The RL is obtained by the resonant excitation of the Nd3+ state 2G7/2 followed by energy transfer among two excited ions such that one ion in the pair decays to a lower energy state and the other is promoted to state 4D7/2 from where it decays emitting light at 381 nm. The RL threshold of 30 kW/cm2 was determined by monitoring the photoluminescence intensity as a function of the pump laser intensity. The RL pulses have time duration of 29 ns that is 50 times smaller than the decay time of the upconversion signal when the sample is pumped with intensities below the RL laser threshold.

© 2011 OSA

OCIS Codes
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(190.0190) Nonlinear optics : Nonlinear optics
(140.3613) Lasers and laser optics : Lasers, upconversion

ToC Category:
Lasers and Laser Optics

Original Manuscript: February 3, 2011
Revised Manuscript: February 28, 2011
Manuscript Accepted: February 28, 2011
Published: March 10, 2011

Marcos A. S. de Oliveira, Cid B. de Araújo, and Younes Messaddeq, "Upconversion ultraviolet random lasing in Nd3+ doped fluoroindate glass powder," Opt. Express 19, 5620-5626 (2011)

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