The study on the generation method of two-dimensional airy beams based on digital blazed grating

Yun-long Wu; Jin-song Nie; Li Shao; Xiao-quan Sun

doi:10.1117/12.2243245

25 October 2016 The study on the generation method of two-dimensional airy beams based on digital blazed grating

Yun-long Wu, Jin-song Nie, Li Shao, Xiao-quan Sun

Proceedings Volume 9686, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices; 96860T (2016) https://doi.org/10.1117/12.2243245
Event: Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), 2016, Suzhou, China

Abstract

The common generation methods of two-dimensional airy beams were introduced briefly. The disadvantage of generation method by utilizing traditional two-dimensional digital phase masks was analyzed as well. Based on this, the digital blazed grating was introduced, as well as its corresponding theories. It was proposed that the traditional two-dimensional digital phase mask and the alterable digital blazed grating could be combined to generate a comprehensive phase mask. Thus, the diffraction orders of the airy beams could be controlled by changing the periods of improved comprehensive phase masks. Compared to the traditional two-dimensional digital phase masks, the airy beams generated by the proposed comprehensive phase mask had the advantage of controllable distances between different diffraction orders. At the same time, the specific order of the Airy beams could be strengthened, and the others could be weakened, which was useful to the subsequent study on the propagation and control of two-dimensional airy beams. The experimental results showed that: the proposed comprehensive phase masks could distinguish between the different diffraction orders of generated Airy beams. As a result, the mutual interference between different diffraction orders could be avoided effectively.

Citation Download Citation

Yun-long Wu, Jin-song Nie, Li Shao, and Xiao-quan Sun "The study on the generation method of two-dimensional airy beams based on digital blazed grating", Proc. SPIE 9686, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices, 96860T (25 October 2016); https://doi.org/10.1117/12.2243245

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KEYWORDS

Diffraction

Diffraction gratings

Gaussian beams

Modulation

Phase shift keying

Beam propagation method

Bessel beams

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