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Geometric-optical reconstruction of a wavefront experimental realization with femtosecond laser pulses |
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| Authors: | D A Dement'ev A L Ivanov O B Serov A G Stepanov Yu A Matveets S V Chekalin and A M Smolovich |
| Institution: | a N.N. Andreev Acoustics Institute, 117036 Moscow, Russian Federation b Institute of Spectroscopy, Russian Academy of Sciences, 142092 Troitsk, Moscow Region, Russian Federation c Central Office of Design of Unique Instrumentation, Russian Academy of Sciences, 117342 Moscow, Russian Federation |
| Abstract: | The mechanism of wavefront reconstruction by geometric-optical reflection of reconstruction radiation from surfaces with constant phase differences between the object and reference waves has been investigated. The main difference between this mechanism and a holographic one is the absence of diffraction of the reconstructing radiation by the periodic structure and as a consequence the achromatism of the reconstruction process. Incoherent continuous radiation and ultrashort laser pulses were used in the experiments. The effect of achromatic reconstruction has been obtained after recording the interference of counterpropagating 30–40 fs pulses from an Al2O3:Ti3+ laser in bulk media. |
| Keywords: | Optical communication Ultrafast phenomena Laser pulses Light reflection Electromagnetic wave diffraction Light interference Light propagation Geometric optical reconstruction Femtosecond laser pulses |
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