SCHWAN, C and PENZKOFER, A and MARX, NJ and DREXHAGE, KH (1993) PHASE-MATCHED 3RD-HARMONIC GENERATION OF ND GLASS-LASER PICOSECOND PULSES IN A NEW CYANINE-DYE SOLUTION. APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 57 (3). pp. 203-211. ISSN 0721-7269,
Full text not available from this repository.Abstract
The phase-matched direct tripling of picosecond light pulses of a mode-locked Nd: glass laser in a new cyanine dye PMC is studied. The solvents trifluoroethanol (TFE) and hexafluoroisopropanol (HFIP) are applied. The S0-S1 absorption peak of the dye is around lambda = 480 nm and the absorption cross section at the third-harmonic wavelength of lambda3 = 351.3 nm is only sigma3 almost-equal-to 1 X 10(-19) cm2. Phase-matching occurred at concentrations of C(PM) = 0,0874 mol/dm3 in HFIP and 0.1088 mol/dm3 in TFE. A third-harmonic energy conversion efficienCY of eta(E) almost-equal-to 0.01 was achieved at a pump-laser peak intensity of I(0L) almost-equal-to 2.5 x 10(11) W/cm2 in a 5 mm long sample of PMC in TFE. The conversion efficiency is limited by destruction of phase-matching due to the intensity-dependent nonlinear refractive index of the dye solutions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LIGHT GENERATION; SUSCEPTIBILITIES; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/53784 |
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