document: Elimination of zero-order diffraction in digital holography A simple method to suppress the zero-order diffraction in the reconstructed image of digital holography is presented . In this method , the Laplacian of a detected hologram is used instead of the hologram itself for numerical reconstruction by computing the discrete Fresnel integral . This method can significantly improve the image quality and give better resolution and higher accuracy of the reconstructed image . The main advantages of this method are its simplicity in experimental requirements and convenience in data processing
doc_bio_tags: O O O O O B I O O O O O O O O O O B I O B I O O O O O O O O B O O B I O O O O O O O O O O O O O B I I O O O O O O O B I O O O O O O B O O B I O O O O O O O O O O O O O O O O B I