Experimental investigation of the interaction of subterawatt femtosecond laser radiation with transparent dielectrics using axicon focusing

A. A. Babin; A. M. Kiselev; Kirill I. Pravdenko; Alexander M. Sergeev; Andrey N. Stepanov; Efim A. Khazanov

doi:10.1117/12.341474

5 March 1999 Experimental investigation of the interaction of subterawatt femtosecond laser radiation with transparent dielectrics using axicon focusing

A. A. Babin, A. M. Kiselev, Kirill I. Pravdenko, Alexander M. Sergeev, Andrey N. Stepanov, Efim A. Khazanov

Author Affiliations +

Proceedings Volume 3735, ICONO '98: Ultrafast Phenomena and Interaction of Superstrong Laser Fields with Matter: Nonlinear Optics and High-Field Physics; (1999) https://doi.org/10.1117/12.341474
Event: ICONO '98: Laser Spectroscopy and Optical Diagnostics: Novel Trends and Applications in Laser Chemistry, Biophysics, and Biomedicine, 1998, Moscow, Russian Federation

Abstract

A subterawatt fs laser complex with a power in a pulse P less than or equal to 0.15 TW is constructed. Our experiments show that axicon focusing of such laser light in transparent dielectric leads to formation of a long hollow channel with micron-order transverse dimensions. It is found that effective (approximately 10^-3) generation of harmonics of incident light takes place in plasma appearing under axicon focusing. The discussion of the results obtained is presented.

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A. A. Babin, A. M. Kiselev, Kirill I. Pravdenko, Alexander M. Sergeev, Andrey N. Stepanov, and Efim A. Khazanov "Experimental investigation of the interaction of subterawatt femtosecond laser radiation with transparent dielectrics using axicon focusing", Proc. SPIE 3735, ICONO '98: Ultrafast Phenomena and Interaction of Superstrong Laser Fields with Matter: Nonlinear Optics and High-Field Physics, (5 March 1999); https://doi.org/10.1117/12.341474

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