New perspectives of coloured LiF for optoelectronic devices

Giuseppe Baldacchini, Rosa Maria Montereali

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

Colour centre lasers (CCL) based on LiF crystals have been operating at room temperature (RT) in the visible and in the near infrared since many years. On the other hand little is known about LiF films treated by low energy electrons, which are promising candidates for the realization of miniaturized broad band active optical devices, like waveguide and microcavity amplifiers and lasers. The high concentration of defects produced in these optically confined active structures does not seem to affect appreciably the numerical value of the gain coefficients, although complex mechanisms of losses should be taken into account. Interactions among several types of defects in extremely coloured samples should be further investigated in crystals and films. The formation of different kind of centres could be controlled by a careful choice of irradiation conditions and growth parameters in the polycrystalline films.
Original languageEnglish
Pages (from-to)53 - 61
Number of pages9
JournalOptical Materials
Volume16
Issue number1-2
DOIs
Publication statusPublished - 2001
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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