Self-focusing in Terbium Gallium Garnet using Z-scan

6533b828fe1ef96bd1288520

RESEARCH PRODUCT

Self-focusing in Terbium Gallium Garnet using Z-scan

X. Chen X. Michaut H. Misserey Bruno Lavorel Thomas Dreier N. Genetier

subject

[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics]Materials science [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics]business.industry Resonance Physics::Optics Self-focusing Ion laser Laser Atomic and Molecular Physics and Optics Terbium gallium garnet Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound Optics chemistry law Z-scan technique Electrical and Electronic Engineering Physical and Theoretical Chemistry business Refractive index Beam (structure)

description

International audience; When illuminated near its resonance with an Ar ion laser beam (lambda=488 nm), laser induced thermal self-focusing is observed in Terbium Gallium Garnet. The crystal exhibits a strong intensity dependent refractive index change Dn. The Z-scan technique is used to study the beam waist change due to Dn. The refractive index is found to be well described by a quadratic spatial distribution model. Both the sign and the distribution coefficient of Dn are determined.

year	journal	country	edition	language
1998-08-01

https://hal.archives-ouvertes.fr/hal-00398064

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