Numerical parametric lens for shifting, magnification, and complete aberration compensation in digital holographic microscopy.
The concept of numerical parametric lenses (NPL) is introduced to achieve wavefront reconstruction in digital holography. It is shown that operations usually performed by optical components and described in ray geometrical optics, such as image shifting, magnification, and especially complete aberration compensation (phase aberrations and image distortion), can be mimicked by numerical computation of a NPL. Furthermore, we demonstrate that automatic one-dimensional or two-dimensional fitting procedures allow adjustment of the NPL parameters as expressed in terms of standard or Zernike polynomial coefficients. These coefficients can provide a quantitative evaluation of the aberrations generated by the specimen. Demonstration is given of the reconstruction of the topology of a microlens.
Colomb
Tristan
T
Ecole Polytechnique Fédérale de Lausanne, Switzerland. tristan.colomb@a3.epfl.ch
Montfort
Frédéric
F
Kühn
Jonas
J
Aspert
Nicolas
N
Cuche
Etienne
E
Marian
Anca
A
Charrière
Florian
F
Bourquin
Sébastien
S
Marquet
Pierre
P
Depeursinge
Christian
C
D016477:Artifacts; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006696:Holography / Q000295:instrumentation*; D007089:Image Enhancement / Q000295:instrumentation*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D007909:Lenses; D008853:Microscopy / Q000295:instrumentation*; D009716:Numerical Analysis, Computer-Assisted; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity