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Development of Saturable Absorbers for Laser Passive Q-Switching near 1.5 μm Based on Transparent Ceramic Co2+:MgAl2O4.

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Title: Development of Saturable Absorbers for Laser Passive Q-Switching near 1.5 μm Based on Transparent Ceramic Co2+:MgAl2O4.
Authors: Goldstein, Adrian1, Loiko, Pavel2, Burshtein, Zeev3, Skoptsov, Nikolai2, Glazunov, Ilya2, Galun, Ehud4, Kuleshov, Nikolai2, Yumashev, Konstantin2, Hay, R.
Source: Journal of the American Ceramic Society. Apr2016, Vol. 99 Issue 4, p1324-1331. 8p. 3 Black and White Photographs, 1 Diagram, 3 Charts, 6 Graphs.
Subjects: Cobalt compounds, Laser beams, Q-switching, Transparent ceramics, Absorption, Ground state (Quantum mechanics)
Abstract: We describe the development of a reasonable cost Co2+: MgAl2 O4 transparent ceramic plates fabrication technology that allows the producing of parts functioning as passive laser Q-switches in the 1.3-1.7 μm domain. The main relevant material characteristics were measured. The absorption band, positioned between 1.2 and 1.7 μm, is typical of the 4A2 (4F) → 4T1 (4F) transition of Co2+ substituting Mg2+ ions in their Td symmetry sites. The measured ground-state absorption cross section σgs = 2.9 × 10−19 cm2, saturation contrast γ = 0.12, and depleted ground-state recovery time τ2 = 110-430 ns render such parts suitable for the intended application. The radiative lifetime was estimated as [ABSTRACT FROM AUTHOR]
Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Development of Saturable Absorbers for Laser Passive Q-Switching near 1.5 μm Based on Transparent Ceramic Co<superscript>2+</superscript>:MgAl<subscript>2</subscript>O<subscript>4</subscript>.
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  Data: <searchLink fieldCode="AR" term="%22Goldstein%2C+Adrian%22">Goldstein, Adrian</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Loiko%2C+Pavel%22">Loiko, Pavel</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Burshtein%2C+Zeev%22">Burshtein, Zeev</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Skoptsov%2C+Nikolai%22">Skoptsov, Nikolai</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Glazunov%2C+Ilya%22">Glazunov, Ilya</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Galun%2C+Ehud%22">Galun, Ehud</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Kuleshov%2C+Nikolai%22">Kuleshov, Nikolai</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Yumashev%2C+Konstantin%22">Yumashev, Konstantin</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Hay%2C+R%2E%22">Hay, R.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+American+Ceramic+Society%22">Journal of the American Ceramic Society</searchLink>. Apr2016, Vol. 99 Issue 4, p1324-1331. 8p. 3 Black and White Photographs, 1 Diagram, 3 Charts, 6 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Cobalt+compounds%22">Cobalt compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+beams%22">Laser beams</searchLink><br /><searchLink fieldCode="DE" term="%22Q-switching%22">Q-switching</searchLink><br /><searchLink fieldCode="DE" term="%22Transparent+ceramics%22">Transparent ceramics</searchLink><br /><searchLink fieldCode="DE" term="%22Absorption%22">Absorption</searchLink><br /><searchLink fieldCode="DE" term="%22Ground+state+%28Quantum+mechanics%29%22">Ground state (Quantum mechanics)</searchLink>
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  Label: Abstract
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  Data: We describe the development of a reasonable cost Co2+: MgAl2 O4 transparent ceramic plates fabrication technology that allows the producing of parts functioning as passive laser Q-switches in the 1.3-1.7 μm domain. The main relevant material characteristics were measured. The absorption band, positioned between 1.2 and 1.7 μm, is typical of the 4A2 (4F) → 4T1 (4F) transition of Co2+ substituting Mg2+ ions in their Td symmetry sites. The measured ground-state absorption cross section σgs = 2.9 × 10−19 cm2, saturation contrast γ = 0.12, and depleted ground-state recovery time τ2 = 110-430 ns render such parts suitable for the intended application. The radiative lifetime was estimated as [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/jace.14102
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        Text: English
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        PageCount: 8
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      – SubjectFull: Cobalt compounds
        Type: general
      – SubjectFull: Laser beams
        Type: general
      – SubjectFull: Q-switching
        Type: general
      – SubjectFull: Transparent ceramics
        Type: general
      – SubjectFull: Absorption
        Type: general
      – SubjectFull: Ground state (Quantum mechanics)
        Type: general
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      – TitleFull: Development of Saturable Absorbers for Laser Passive Q-Switching near 1.5 μm Based on Transparent Ceramic Co2+:MgAl2O4.
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              M: 04
              Text: Apr2016
              Type: published
              Y: 2016
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