Iv. Ivanova et Ad. Tsvetkov, INTERFEROMETER WITH A DIVERGING LENS FOR THE INVESTIGATION OF LASER-RADIATION WAVE-FRONTS, Kvantovaa elektronika, 21(4), 1994, pp. 389-390
An interferometer was constructed for the analysis of laser radiation
wavefronts. A lens optical component used in this interferometer was m
ade by sintering and local compression of two glasses. The error in th
e determination of the wavefront topography of test radiation was less
than 1/30 of its wavelength.