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6 June 2018 Experimental investigation of the birefringence of the parabolic gradient lens on the basis of the astigmatic transformation of the Bessel beam
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Proceedings Volume 10774, Optical Technologies in Telecommunications 2017; 107740V (2018) https://doi.org/10.1117/12.2317896
Event: XV International Scientific and Technical Conference on Optical Technologies in Telecommunications, 2017, Kazan, Russian Federation
Abstract
A method is proposed for detecting birefringence of mechanically free parabolic gradient-index lenses based on the astigmatic transformation of the zero-order Bessel beam. The degree of astigmatism can be determined from the intensity distribution of the distorted beam. Similar patterns are also obtained in an experimental study of the passage of a Bessel beam through a quarter-pitch gradient-index lens, which indicates the presence of birefringence of the lens material. Comparison of experimental data and numerical simulation shows the possibility of measuring the optical path difference of no worse than 0.05λ0 between ordinary and extraordinary beams.
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S. V. Karpeev "Experimental investigation of the birefringence of the parabolic gradient lens on the basis of the astigmatic transformation of the Bessel beam", Proc. SPIE 10774, Optical Technologies in Telecommunications 2017, 107740V (6 June 2018); https://doi.org/10.1117/12.2317896
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