Investigation of energy transfer processes that enable the laser (cw) operation in Ho: YLF and Er: YLF crystals in the 3 um region

Authors

  • Fábio Henrique Jagosich Ipen
  • Luiz Vicente Gomes Tarelho Cnen/Ipen
  • Laércio Gomes Cnen/Ipen
  • Izilda Márcia Ranieri Cnen/Ipen

DOI:

https://doi.org/10.5585/exacta.v4i1.672

Keywords:

Espectroscopia. Íons de terras raras. Lasers de estado sólido. Transferência de energia.

Abstract

This paper presents the analysis of uplift load tests in three precast-concrete piles carried out in a collapsible sandy soil. The piles with 12 meters (m) length and 0.17 x 0.17 square meter (m2) cross section were instrumented with strain gauges, in order to know the load transfer in depth. Three tests performed in a slow maintained load way were conducted in a natural condition of moisture content soil. A fourth test was carried out after the previous soaking of the soil around the pile head. The tests were performed in the experimental research site at the Universidade Estadual Paulista “Júlio de Mesquita Filho” (Unesp). The results obtained were evaluated by analytical and empirical methods.

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Author Biographies

Fábio Henrique Jagosich, Ipen

Doutor em Tecnologia Nuclear [Materiais] – Ipen.

Luiz Vicente Gomes Tarelho, Cnen/Ipen

Doutor em Tecnologia Nuclear [Materiais] – Ipen; Pesquisador-colaborador – Cnen/Ipen.

Laércio Gomes, Cnen/Ipen

Doutor em Tecnologia Nuclear [Materiais] – Ipen; Pesquisador-colaborador – Cnen/Ipen.

Izilda Márcia Ranieri, Cnen/Ipen

Doutora em Tecnologia Nuclear [Materiais] – Ipen; Pesquisadora-colaboradora – Cnen/Ipen.

Published

2008-03-12

How to Cite

Jagosich, F. H., Tarelho, L. V. G., Gomes, L., & Ranieri, I. M. (2008). Investigation of energy transfer processes that enable the laser (cw) operation in Ho: YLF and Er: YLF crystals in the 3 um region. Exacta, 4(1), 185–190. https://doi.org/10.5585/exacta.v4i1.672