Phase-matched third-harmonic generation in dye solutions |
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Authors: | J C Diels F P Schäfer |
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Institution: | 1. Max-Planck-Institut für biophysikalische Chemie, D-3400, G?ttingen, Fed. Rep. Germany
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Abstract: | Various dyes are investigated for their capability of generating 3rd harmonic of Nd-laser light. The feasibility of achieving phase matching is demonstrated by direct measurements of the index
of refraction. Third-harmonic conversion of hexamethylindocarbocyanine iodide, diethyloxacarbocyanine iodide and fuchsin red
are compared. The highest conversion is obtained for hexamethylindocarbocyanine iodide (80 times higher than in fuchsin red).
A further enhancement of the third harmonic by a factor of 70 is expected for the fundamental laser light at 1.15 μm. |
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Keywords: | Third-harmonic generation Non-linear optics Cyanine dyes |
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