Diffractive array optics tuned by rotation

Abstract

In this work, we apply the Alvarez–Lohmann principle for varifocal lenses to diffractive off-axis elements tuned by rotation. Two methods to combine multiple elements into arrays are presented. Further, we show that inverse phase sections result from a $2\pi$ ambiguity of the rotation. Quantization techniques are applied to eliminate these unwanted sections. As proof of concept, a retrofocus lens using a tunable diffractive lens array is presented.

© 2016 Optical Society of America

Multi-color operation of tunable diffractive lenses

Stefan Bernet and Monika Ritsch-Marte
Opt. Express 25(3) 2469-2480 (2017)

Aberration analysis of optimized Alvarez–Lohmann lenses

Adrian Grewe, Matthias Hillenbrand, and Stefan Sinzinger
Appl. Opt. 53(31) 7498-7506 (2014)

Adjustable refractive power from diffractive moiré elements

Stefan Bernet and Monika Ritsch-Marte
Appl. Opt. 47(21) 3722-3730 (2008)

Ultrathin Alvarez lens system actuated by artificial muscles

S. Petsch, A. Grewe, L. Köbele, S. Sinzinger, and H. Zappe
Appl. Opt. 55(10) 2718-2723 (2016)

A matter of style: Adolf Lohmann’s approach to optical phase space

Markus E. Testorf
Appl. Opt. 56(1) A69-A78 (2017)