Role of femtosecond pulses in distinguishing third- and fifth-order nonlinearity for semiconductor-doped glasses
- 3 December 2001
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 79 (23), 3761-3763
- https://doi.org/10.1063/1.1424462
Abstract
We report Z -scan experiments at a frequency below the band gap of semiconductor-doped glasses using 100 fs laser pulses. A large contribution from the positive third-order nonlinearity is observed in complete contrast with the picosecond z -scan experiments. The third- and fifth-order nonlinearity for semiconductor-doped glasses can be estimated from z -scans for ps and fs pulses.Keywords
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