Hilbert reconstruction of phase-shifted second-harmonic holographic images.
New techniques are presented that make phase-shifting holography viable for second-harmonic generation (SHG) holography with weak object fields. We developed an intrinsic phase shift calibration of SHG holograms, an algorithm that extracts the reference and object intensity directly from a set of phase-shifted holographic data, and a more robust phase-shifting holography reconstruction algorithm based on π-shifted hologram pairs that permits self-calibration of the phase shift and recovery of the complex field through a Hilbert transform.
School of Biomedical Engineering, Colorado State University, Fort Collins, Colorado 80523, USA.
David R
DR
Smith
David G
DG
Winters
Philip
P
Schlup
Randy A
RA
Bartels
D006696:Holography / Q000379:methods*; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D013213:Starch / Q000737:chemistry
D013213:Starch