Investigation of tetrabenzporphyrin by the Z-scan technique
- 1 May 1995
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 20 (9) , 973-975
- https://doi.org/10.1364/ol.20.000973
Abstract
The nonlinear transmission of tetrabenzporphyrin dissolved in tetrahydrofuran was measured with the Z-scan technique at 532 nm with nanosecond pulses. The excited-state absorption cross section, the excited-state refractive-index cross section, and the linear and nonlinear absorption contributing to a thermal index change have been determined. To our knowledge, the excited-state cross section and its effective ratio to the ground-state cross section are the largest values reported to date.Keywords
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