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Laser third harmonic generation in organic dye vapors

R. A. Ganeev“Akadempribor” Research and Production Corporation, Academy of Sciences of the Republic of Uzbekistan, Tashkent, UzbekistanSh. R. Kamalov“Akadempribor” Research and Production Corporation, Academy of Sciences of the Republic of Uzbekistan, Tashkent, UzbekistanМ. К. КодировSamarkand State University, Samarkand, 703005, UzbekistanM. R. MalikovSamarkand State University, Samarkand, 703005, UzbekistanA. I. Ryasnyanskiı̆Samarkand State University, Samarkand, 703005, UzbekistanR. I. Tugushev“Akadempribor” Research and Production Corporation, Academy of Sciences of the Republic of Uzbekistan, Tashkent, UzbekistanSh.U. UmidullaevSamarkand State University, Samarkand, 703005, UzbekistanT. UsmanovSamarkand State University, Samarkand, 703005, Uzbekistan

Technical Physics Lettersjournal2000en

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Annotatsiya

The phenomenon of nonlinear optical conversion of a YAG:Nd laser radiation frequency from IR to UV spectral range in naphthalene vapors was studied. The optimum temperature of naphthalene vapors (170°C) was found at which the pumping radiation is synchronously converted into the third harmonic emission. A mechanism of the third harmonic generation is proposed based on the difference frequency generation in a six-photon process. The efficiency of conversion to the third harmonic generation varied within 10−10–10−8, depending on the pumping intensity and cell temperature. Nonlinear optical characteristics of naphthalene vapors were calculated for the generation using nonlinearities of the third and fifth order.

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Mavzular

Photochemistry and Electron Transfer Studies Laser-Matter Interactions and Applications Spectroscopy and Quantum Chemical Studies

Identifikatorlar

DOI: 10.1134/1.1262843

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