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Chirp characterization of ultrashort pulses utilizing molecular vibrations
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10.1063/1.1768303
/content/aip/journal/apl/85/1/10.1063/1.1768303
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/1/10.1063/1.1768303
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Impulsive stimulated Raman scattering (ISRS) signal detected at a single wavelength for the neat liquids phosphorus trichloride (a) and chloroform (c). The vertical axis shows the differential transmission and the horizontal is the interpulse delay. Plots (b) and (d) show the Fourier transform of the ISRS signals in (a) and (c), respectively. The modulations induced in the delayed pulse by the intramolecular vibrations are used to determine the chirp profile of the laser pulse.

Image of FIG. 2.
FIG. 2.

A frequency dispersed signal on showing the difference transmittance, of the probe pulse (gray scale, white and black correspond to positive and negative difference transmittance, respectively) as a function of the detected wavelength (horizontal) and the interpulse delay (vertical).

Image of FIG. 3.
FIG. 3.

The dashed curve shows the relative delay expected if the pulse used were Fourier-transform limited according to Eq. (4). The heavy-dotted curve shows the relative delay measured, which is obtained by multiplying the phase vs wavelength curve for a molecular vibration mode by times the oscillation period of the mode ( in this case). The solid line shows the difference between the above-mentioned curves. The light-dotted curve shows the interpolation of the data in the region where is close to zero and therefore the ISRS signal is weak. The solid curve along with the interpolation around gives the uncompensated chirp in the laser pulse.

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/content/aip/journal/apl/85/1/10.1063/1.1768303
2004-06-29
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Chirp characterization of ultrashort pulses utilizing molecular vibrations
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/1/10.1063/1.1768303
10.1063/1.1768303
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