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Dichroism of diamond grains by a polarization modulated near field optical setup
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10.1063/1.2338581
/content/aip/journal/apl/89/12/10.1063/1.2338581
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/12/10.1063/1.2338581
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Sketch of the polarization modulated SNOM setup. Near field signal and lock-in polarization properties maps are collected simultaneously.

Image of FIG. 2.
FIG. 2.

(Color online) Bulk luminescence emission spectrum of our diamond sample under illumination. In the inset is shown a SEM image of its surface. The thickness of the diamond is about and its roughness is about .

Image of FIG. 3.
FIG. 3.

(Color online) Simultaneous scans of near field photoluminescence and its polarization properties. (a) Near field PL intensity map of a region. The image is not treated and oscillation due to the chopping procedure is visible. (b) Lock-in phase signal revealing pixel-to-pixel correspondence to the polarization-changing properties of the emission. (c) Map of the phase differences in (b) emphasizing the confined domains where stronger phase variation occurs. (d) Cross section along and lines. The left vertical axis corresponds to the observed signal in counts, the right one is the corresponding polarization phase shift.

Image of FIG. 4.
FIG. 4.

(Color online) Another example of polarization-changing features within the CVD crystal structure. (a) Optical near field map. (b) Polarization modulated map. (c) Map of the phase difference emphasizing the region of higher polarization variation. (d) Cross section profiles along the lines and .

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/content/aip/journal/apl/89/12/10.1063/1.2338581
2006-09-22
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dichroism of diamond grains by a polarization modulated near field optical setup
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/12/10.1063/1.2338581
10.1063/1.2338581
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