Accelerated autofocusing of off-axis holograms using critical sampling

作者：Toy M Fatih^*; Kuehn Jonas; Richard Stephane; Parent Jerome; Egli Marcel; Depeursinge Christian

来源：Optics Letters, 2012, 37(24): 5094-5096.

In this Letter we propose a fast off-axis hologram autofocusing (AF) approach that is based on the redundant data elimination by the critical resampling of the contained complex field. Implementation of the proposed methodology enables the real-time AF with up to 12x speed-up factors in comparison to the classical approach. The method is further extended for single-shot physical autofocus of the fluorescence imaging channel of multimodal imaging instruments capable of off-axis hologram acquisition.

• 出版日期2012-12-15