11 April 2014 Double-slit interference of radially polarized vortex beams
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Both radially polarized (RP) and radially polarized vortex (RPV) beams are generated by an experimental setup with one phase-only liquid crystal spatial light modulator which efficiently modulates the phase retardation distributions of input beam by twice reflections. The polarizing properties and double-slit interference of both RP and RPV beams are investigated in detail. Misplacement and tilt appear in double-slit interference fringes of both RP beams and RPV beams in simulations and experiments. The fringe tilt number F in the intermediate region is proportional to the topological charge l of RPV beams with the approximate relation Fs(l)=0.8125l in simulations and Fe(l)=0.8182l in experiments. The double-slit interference method can be utilized to determine and analyze the topological charge of the beams.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Junli Qi, Junli Qi, Weihua Wang, Weihua Wang, Xiujian Li, Xiujian Li, Xiaofeng Wang, Xiaofeng Wang, Wenchao Sun, Wenchao Sun, Jiali Liao, Jiali Liao, Yongming Nie, Yongming Nie, "Double-slit interference of radially polarized vortex beams," Optical Engineering 53(4), 044107 (11 April 2014). https://doi.org/10.1117/1.OE.53.4.044107 . Submission:

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