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Anisotropic lattice changes in femtosecond laser inscribed optical waveguides
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10.1063/1.3168432
/content/aip/journal/jap/106/1/10.1063/1.3168432
http://aip.metastore.ingenta.com/content/aip/journal/jap/106/1/10.1063/1.3168432
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Optical transmission micrograph of the double-filament structure fabricated by femtosecond laser writing in a crystal. (b) Near-field intensity distribution of the waveguides’ modes at 632.8 nm.

Image of FIG. 2.
FIG. 2.

Typical a -luminescence (a) and -Raman (b) spectra obtained from the system in our experimental conditions. The different Raman modes contributing to our -Raman spectrum are properly labeled in (b).

Image of FIG. 3.
FIG. 3.

Spatial distribution of the intensity (a), linewidth (b), and position (c) of the main luminescence peak within the band located at around .

Image of FIG. 4.
FIG. 4.

Spectral shift induced in the main luminescence peak within the band (located at around ) as obtained along the horizontal scan schematically shown by a solid arrow on the top image. The position of filaments is indicated by the vertical shaded lines.

Image of FIG. 5.
FIG. 5.

(a) Schematic drawing of the scan direction along which Raman measurements have been done. Spatial dependence of the integrated Raman intensity (b) and of the linewidth (c). Similar results, not shown for the sake of brevity, have been obtained when the spatial distribution of the linewidth of the other Raman modes has been analyzed.

Image of FIG. 6.
FIG. 6.

(a) Schematic drawing of the scan direction through waveguide and filaments. (b) Spatial distribution of the energy shift of the four Raman modes under study in this work. The vertical dashed lines indicate the location of filaments.

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/content/aip/journal/jap/106/1/10.1063/1.3168432
2009-07-15
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Anisotropic lattice changes in femtosecond laser inscribed Nd3+:MgO:LiNbO3 optical waveguides
http://aip.metastore.ingenta.com/content/aip/journal/jap/106/1/10.1063/1.3168432
10.1063/1.3168432
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