Picosecond three-color holographic digital interferometry
В. И. РедкоречевNPO Akadempribor, Academy of Sciences of Uzbekistan, Tashkent, 100125, UzbekistanI. A. KulaginNPO Akadempribor, Academy of Sciences of Uzbekistan, Tashkent, 100125, UzbekistanВ. С. ГуревичNPO Laser Technology Center, Almaty, 050062, KazakhstanMikhail E. GusevKaliningrad State University, Kaliningrad, 236041, RussiaYu. A. ZakharovNizhni Novgorod State University, Nizhni Novgorod, 603950, Russia
ABI
Abstract
The possibilities of multicolor digital holographic interferometry are experimentally studied upon measuring displacements of a surface in radiation of a picosecond Nd:YAG laser with the radiation frequency conversion into harmonics (λ1 = 1.06 µm, λ2 = 0.53 µm, and λ3 = 0.35 µm). It is shown that three-color digital holographic interferometry makes it possible to increase the measurement accuracy of displacements. The peculiarities of multicolor digital holographic interferometry by picosecond pulses are discussed.
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