Abstract

A method for designing achromatic hybrid refractive-diffractive elements that can produce beams with long focal depths while they preserve the entire aperture for capture of light and high transverse resolution is presented. Its working principle is based on the combination of a diffractive optical element that generates a long range of pseudonondiffractive rays and a refractive lens of opposite dispersion to form an achromatic hybrid lens. A hybrid lens with a fast f-number (f/1) that works in the entire visible wave band (400–700 nm) was designed and fabricated. Simulation results demonstrate a factor-of-10 improvement in depth of focus compared with that of a conventional f/1 lens, with matching 1-μm lateral resolution. Experimental results confirm the effectiveness of the proposed method through demonstration of an achromatic hybrid lens with better than a factor-of-7 improvement in depth of focus and 1-μm transverse resolution.

© 2004 Optical Society of America

Adjustable hybrid diffractive/refractive achromatic lens

Pouria Valley, Nickolaos Savidis, Jim Schwiegerling, Mohammad Reza Dodge, Gholam Peyman, and N. Peyghambarian
Opt. Express 19(8) 7468-7479 (2011)

Hybrid diffractive-refractive lenses and achromats

Thomas Stone and Nicholas George
Appl. Opt. 27(14) 2960-2971 (1988)

Power-balanced hybrid optics boosted design for achromatic extended depth-of-field imaging via optimized mixed OTF

Seyyed Reza Miri Rostami, Samuel Pinilla, Igor Shevkunov, Vladimir Katkovnik, and Karen Egiazarian
Appl. Opt. 60(30) 9365-9378 (2021)

Analytic design of hybrid diffractive–refractive achromats

N. Davidson, A. A. Friesem, and E. Hasman
Appl. Opt. 32(25) 4770-4774 (1993)

Hybrid diffractive optics design via hardware-in-the-loop methodology for achromatic extended-depth-of-field imaging

Samuel Pinilla, Seyyed Reza Miri Rostami, Igor Shevkunov, Vladimir Katkovnik, and Karen Egiazarian
Opt. Express 30(18) 32633-32649 (2022)