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Influence of tip-sample interaction in a time-domain terahertz scattering near field scanning microscope
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10.1063/1.2949858
/content/aip/journal/apl/92/25/10.1063/1.2949858
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/25/10.1063/1.2949858
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

THz transient reflected from the sample with the tip positioned above the gold structure (solid line) and above the glass substrate (dashed line, offset by 0.05 for clarity). Inset: Normalized Fourier power spectrum of the THz pulse with the tip above the gold structure. Absorption lines are due to water vapor.

Image of FIG. 2.
FIG. 2.

Lateral scan with a step size of across the gold structure with (red circles) and without a tip (black squares), respectively. The curves are offset with respect to each other for clarity.

Image of FIG. 3.
FIG. 3.

Lateral scans across the structure at consecutive time delays. The amplitudes are scaled differently as given in the figure. Dotted lines are guides to the eye and show positions of additional structures.

Image of FIG. 4.
FIG. 4.

The position of the peaks (with ) outside the gold structure plotted vs the time delay. The dashed line is a linear fit to the average shift of the furthermost left (black squares) and right (red circles) peaks, yielding a velocity of .

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/content/aip/journal/apl/92/25/10.1063/1.2949858
2008-06-23
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Influence of tip-sample interaction in a time-domain terahertz scattering near field scanning microscope
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/25/10.1063/1.2949858
10.1063/1.2949858
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