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Examination of the spatial and temporal field distributions of single-cycle terahertz pulses at a beam focus
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10.1063/1.2472717
/content/aip/journal/apl/90/7/10.1063/1.2472717
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/7/10.1063/1.2472717
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Experimental setup. The inset shows the spatial displacement induced by rotating the gimbal-mounted plane mirror. (BS, beam splitter; E, terahertz emitter; , optical lens; WP, Wollaston polarizer; BPD, balanced photodiodes.)

Image of FIG. 2.
FIG. 2.

(Color online) Line scans along the axis of the spatial field distribution measured in the terahertz focus in the (a) time domain and (b) frequency domain. (c) Corresponding terahertz wave forms measured at the locations of the lines in (a). The curves are offset vertically for clarity. (d) Terahertz spectra corresponding to cross sections through the radiation pattern in (b) as indicated by the lines.

Image of FIG. 3.
FIG. 3.

(Color online) Line scans along the axis of the spatial field distribution measured in the terahertz focus in the (a) time domain and (b) frequency domain. (c) and (d) are simulations of the field distribution.

Image of FIG. 4.
FIG. 4.

(Color online) (a) Spatiotemporal line scan of the terahertz focus with an irregularly shaped -lactose sample in the beam path. (b) Corresponding radiation pattern in the frequency domain.

Image of FIG. 5.
FIG. 5.

Zoom into the region indicated by the square in Fig. 4(b).

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/content/aip/journal/apl/90/7/10.1063/1.2472717
2007-02-16
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Examination of the spatial and temporal field distributions of single-cycle terahertz pulses at a beam focus
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/7/10.1063/1.2472717
10.1063/1.2472717
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