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Terahertz/optical sum and difference frequency generation in liquids
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10.1063/1.3552964
/content/aip/journal/apl/98/6/10.1063/1.3552964
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/6/10.1063/1.3552964

Figures

Image of FIG. 1.
FIG. 1.

Measurement setup. (a) Top view—the terahertz radiation is incident from below the grating, normal to the page. (b) Side view— and : electric fields of 532 nm excitation and SDFG signal; Pol 1, Pol 2: polarizer before and behind the interaction volume. (c) Wavevectors for phase matching and terahertz polarization in the plane of the grating.

Image of FIG. 2.
FIG. 2.

(a) SDFG in S-limonene at 0.615 THz with a grating at . (b) Sum frequency generation (SFG) for S-limonene and a racemic mixture of limonene. (c) Power dependence of the limonene SFG signal, showing that it is a linear function of both terahertz and optical power. (Inset top) Sideband signal dependence for terahertz spot scan along the -axis. (Inset bottom) Sideband signal dependence for increased separation between grating surface and 532 nm beam.

Image of FIG. 3.
FIG. 3.

(a) Sideband intensity as a function of the polarization angle of the incident radiation for different rotations of the grating. Inset: the terahertz electric field lines near the grating connect the neighboring grating lines and terminate on the induced oscillating charges. The near grating terahertz field has both parallel and perpendicular components spatially modulated by the grating. (b) Measured and calculated sideband power at 0.675 THz vs grating angle for three different grating periods. Inset: calculated chiral dipolar sideband power; the same parameters.

Tables

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Table I.

Measured hyperpolarizabilities.

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/content/aip/journal/apl/98/6/10.1063/1.3552964
2011-02-09
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Terahertz/optical sum and difference frequency generation in liquids
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/6/10.1063/1.3552964
10.1063/1.3552964
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