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- Title
TWO- AND THREE-PHOTON NONLINEAR ABSORPTION IN As<sub>2</sub>Se<sub>3</sub> CHALCOGENIDE GLASS:: THEORY AND EXPERIMENT.
- Authors
Sanchez, F.; Boudebs, G.; Cherukulappurath, S.; Leblond, H.; Troles, J.; Smektala, F.
- Abstract
The absorption of a. monochromatic plane wave in a. medium exhibiting linear, two- and three-photon absorption is investigated theoretically. An approximate closed-form expression is derived for the optical intensity. An effective two-photon absorption coefficient is then defined. Using the theoretical results, the absorption coefficients from transmission measurements are determined. Experiment is done in a highly absorbing nonlinear material such as As2 Se3 to illustrate our theoretical results. Good agreement is found between experimental data. and numerical simulation based on our model. Measurements of nonlinear coefficients characterizing the two- and three-photon absorption are given.
- Subjects
PHOTONS; ABSORPTION; THEORY; MASS attenuation coefficients; SIMULATION methods &; models; SCIENTIFIC experimentation
- Publication
Journal of Nonlinear Optical Physics & Materials, 2004, Vol 13, Issue 1, p7
- ISSN
0218-8635
- Publication type
Article
- DOI
10.1142/S0218863504001724