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Proceedings Paper

Frequency up-conversion of 800-nm femtosecond pulses by two-photon absorption in doped PMMA fibers
Author(s): Grace Jordan; Takeyuki Kobayashi; Werner J. Blau; Hartwig Tillmann; Hans-Heinrich Hoerhold
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Paper Abstract

We report on two-photon pumped frequency upconverted emission in doped PMMA fibers. The PMMA fibers were doped with a novel organic chromophore 1,4-bis(4-diphenylamino-styryl)-benzene (referred to as SP35) which is designed specifically to emit in the blue spectral region. Strong upconverted blue emission was observed in the fibers when longitudinally pumped at 800nm with a Titanium Sapphire laser. We measured a large two-photon absorption cross section for SP35 of 7.8 x 10-19cm4/GW using the non-linear transmission method. Our study shows that a well designed organic chromophore in combination with a suitable fiber geometry makes this system appealing for the development of an upconversion blue laser source.

Paper Details

Date Published: 12 September 2003
PDF: 9 pages
Proc. SPIE 4972, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications II, (12 September 2003); doi: 10.1117/12.472841
Show Author Affiliations
Grace Jordan, Trinity College Dublin (Ireland)
Takeyuki Kobayashi, Trinity College Dublin (Ireland)
Werner J. Blau, Trinity College Dublin (Ireland)
Hartwig Tillmann, Friedrich-Schiller-Univ. Jena (Germany)
Hans-Heinrich Hoerhold, Friedrich-Schiller-Univ. Jena (Germany)

Published in SPIE Proceedings Vol. 4972:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications II
Kenneth L. Schepler; Dennis D. Lowenthal; Jeffrey W. Pierce, Editor(s)

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