Fig. 1. Generation system of Bessel beam based on deformable mirror. (a) Experimental setup; (b) structure of deformable mirror

Fig. 2. Experimental reconstruction of conical phases. (a)(c)(e) Conical phases generated by deformable mirrors with 3, 4, and 5 rings, respectively. (b)(d)(f) reconstruction errors of deformable mirrors with 3, 4, and 5 rings, respectively

Fig. 3. Comparison of conical phase reconstruction capabilities of deformable mirrors with different rings. (a) Simulation results; (b) experimental results

Fig. 4. Measured axial propagations of Bessel beams generated by deformable mirrors with different actuator rings. (a) 3 rings; (b) 4 rings; (c) 5 rings

Fig. 5. Axial light intensity distributions of Bessel beams generated by deformable mirrors with different actuator rings. (a) 3 rings; (b) 4 rings; (c) 5 rings; (d) 6 rings

Fig. 6. Cross-section intensity distributions of Bessel beams with different incident angles. (a) Design of specular illumination area; (b) 15°; (c) 30°; (d) 45°