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Optical limiting in fullerenes, colloidal metal solutions, and semiconductors in the field of pico-and nanosecond pulses of an Nd:YAG laser

R. A. GaneevScience and Production Corporation “Academpribor”, Tashkent, 700125, UzbekistanA. I. Ryasnyanskiı̆М. К. КодировSh. R. KamalovScience and Production Corporation “Academpribor”, Tashkent, 700125, UzbekistanT. UsmanovScience and Production Corporation “Academpribor”, Tashkent, 700125, Uzbekistan

Optics and Spectroscopyjournal2002en

ABI

Annotatsiya

Optical limiting of pico-and nanosecond pulsed radiation of a Nd:YAG laser (λ=1064 and 532 nm) is studied in solutions of fullerenes (C60 and C70), semiconductor crystals and films (GaAs, As2S3, As20S80, 2As2S3/As2Se3, and 3As2S3/As2Se3), and colloidal solutions of metals (Au, Ag, Pt, and Cu). The effect of the particle aggregation in silver solutions on the optical limiting is considered. Optical limiting mechanisms, specifically, reverse saturable absorption, two-photon absorption, and self-action effects, are discussed. Nonlinear absorption coefficients of the studied materials are measured.

Mavzular

Nonlinear Optical Materials Studies Ocular and Laser Science Research Laser-Ablation Synthesis of Nanoparticles

Identifikatorlar

DOI: 10.1134/1.1524003

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