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Title: Large object investigation by digital holography with effective spectrum multiplexing under single-exposure approach

We present a method to investigate large object by digital holography with effective spectrum multiplexing under single-exposure approach. This method splits the original reference beam and redirects one of its branches as a second object beam. Through the modified Mach-Zehnder interferometer, the two object beams can illuminate different parts of the large object and create a spectrum multiplexed hologram onto the focal plane array of the charge-coupled device/complementary metal oxide semiconductor camera. After correct spectrum extraction and image reconstruction, the large object can be fully observed within only one single snap-shot. The flexibility and great performance make our method a very attractive and promising technique for large object investigation under common 632.8 nm illumination.
Authors:
; ;  [1]
  1. College of Physics and Electronics, Nanjing XiaoZhuang University, Nanjing, Jiangsu Province 211171 (China)
Publication Date:
OSTI Identifier:
22350888
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 15; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BEAMS; CHARGE-COUPLED DEVICES; EXTRACTION; FLEXIBILITY; HOLOGRAPHY; ILLUMINANCE; IMAGE PROCESSING; MACH-ZEHNDER INTERFEROMETER; METALS; OXIDES; SEMICONDUCTOR MATERIALS; SPECTRA