Diffractive optical elements

Diffractive optical elements with extended depth of focus:

Fig.1 Depth of focus of (a) a EDOF lens, and (b) a conventional lens

Fig. 2 The surface profile of the DOE with EDOF.

Selected Publications:

Zhiqiang Liu, Angel Flores, Michael R. Wang, and Jame J. Yang, “Diffractive Infrared Lens with Extended Depth of Focus,” Optical Engineering, 46(1), pp.018002-1 to 018002-9 (2007)
Angel Flores, Michael R. Wang, and Jame J. Yang, “Achromatic Hybrid Refractive-Diffractive Lens with Extended Depth of Focus,” Applied Optics, 43(30), 5618-5630 (2004)
Michael R. Wang, Changyuan Yu, and Alberto J. Varela, “Efficient Pseudo-Nondiffracting Beam Shaping Using a Quasicontinuous-Phase Diffractive Element,” Optical Engineering, 40(4), 517-524 (2001)

Selected Publications:

Jame J. Yang and Michael R. Wang, “Analysis and Optimization on Single Zone Binary Flattop Beam Shaper,” Optical Engineering, 42(11), 3106-3113 (2003)
Michael R. Wang, Changyuan Yu, and Alberto J. Varela, “Efficient Pseudo-Nondiffracting Beam Shaping Using a Quasicontinuous-Phase Diffractive Element,” Optical Engineering, 40(4), 517-524 (2001)
Changyuan Yu, Michael R. Wang, Alberto J. Varela, and Bing Chen, “High-Density Non-Diffracting Beam Array for Optical Interconnection,” Optics Communications, 177, 369-376 (2000)
Xu Guang Huang, Michael R. Wang, and Changyuan Yu, “High-Efficiency Flat-Top Beam Shaper Fabricated by A Non-Lithographic Technique,” Optical Engineering, 38(2), 208-213 (1999)

Selected Publications:

Michael R. Wang and Heng Su, “Laser Direct-Write Gray-Level Mask and One-Step Etching for Diffractive Microlens Fabrication,” Applied Optics, 37(32), 7568-7576 (1998)
Michael R. Wang and Heng Su, “Multilevel Diffractive Microlens Fabrication by One-Step Laser-Assisted Chemical Etching upon High-Energy-Beam Sensitive Glass,” Optics Letters, 23(11), 876-878 (1998)

Last updated on Apr 25th, 2007. Any comments, please email us.