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Title
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Highly sensitive setup for tunable wavelength hyper-Rayleigh scattering with parallel detection and calibration data for various solvents
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Author
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Abstract
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| A very sensitive experimental setup for accurate wavelength-dependent hyper-Rayleigh scattering (HRS) measurements of the molecular first hyperpolarizability beta in the broad fundamental wavelength range of 600 to 1800 nm is presented. The setup makes use of a stable continuously tunable picosecond optical parametric amplifier with kilohertz repetition rate. To correct for multi-photon fluorescence, a small spectral range around the second harmonic wavelength is detected in parallel using a spectrograph coupled to an intensified charge-coupled device. Reliable calibration against the pure solvent is possible over the full accessible spectral range. An extensive set of wavelength-dependent HRS calibration data for a wide range of solvents is presented, and very accurate measurements of the beta dispersion of the well-known nonlinear optical chromophore Disperse Red 1 are demonstrated. |
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Language
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English
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Source (journal)
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Optics express. - -
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Publication
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2009
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ISSN
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1094-4087
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DOI
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10.1364/OE.17.004587
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Volume/pages
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17
:6
(2009)
, p. 4587-4604
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ISI
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000264747300042
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Full text (Publisher's DOI)
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Full text (open access)
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