Binary amplitude off-axis holography
WebJan 1, 2011 · Phase-shifting digital holography (PSDH) is a very effective method of removing these terms, introduced by I. Yamaguchi, where the complex field at the hologram is obtained by phase-shifting interferometry [1]. From the complex field at the hologram plane, including the amplitude and phase information, the optical field at any other plane … WebBinary amplitude off-axis holography is a method for the generation of arbitrary wavefronts, and in particular uniform-amplitude phase-modulated images. As a result, we are able to simultaneously encode phase modulated wavefronts at the high frame rate of binary amplitude DMDs. This wavefront encoding technique allows for focusing through ...
Binary amplitude off-axis holography
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WebJul 7, 2024 · Method comparison conditions. In this work, experimentally recorded off-axis digital holograms of flat objects and 3D scenes were used. The holograms were binarized. Then, the images of the objects were reconstructed and the quality was assessed. The holograms were 2048 × 2048 pixels in size. WebMar 16, 2024 · The present study uses a binary-approximated amplitude in the hologram plane, which we propose as an alternative method to represent a complex amplitude …
Webbinary off-axis digital hologram are considered and discussed. One of the possible approaches for independent amplitude and phase modulation was proposed by Lee et … WebMar 3, 2024 · The compensation for the dimensional change of the recording medium in off-axis holographic storage systems is achieved by adjusting the incident angle or the wavelength of the reading beam, which has been studied systematically before [22,29,30,31,32].The effectiveness of compensation by wavelength tuning and angle …
WebMay 11, 2024 · In this subsection, the basic principles of independent amplitude and phase modulation of the wavefront using DMD generated binary off-axis digital hologram are considered and discussed. WebWe present a new approach for obtaining significant speedup in the digital processing of extracting unwrapped phase profiles from off-axis digital holograms. The new technique digitally multiplexes two orthogonal off-axis holograms, where the digital reconstruction, including spatial filtering and two-dimensional phase unwrapping on a decreased number …
WebBinary amplitude off-axis holography is a method for the generation of arbitrary wavefronts, and in particular uniform-amplitude phase-modulated images. As a result, …
WebNov 12, 2024 · Amplitude methods have proven to be a promising technique to perform Post-Minkowskian calculations used as inputs to construct gravitational waveforms. In … eastwood manor chattanooga tnWebOct 22, 2014 · DMDs have been used for phase modulation by using binary amplitude off-axis holography to generate a wavefront with arbitrary phase from a binary amplitude … eastwood management corporation blacksburg vaWebDigital holographic microscopy has significant advantages over traditional 3D measurements. In order to obtain a reconstructed image of superior quality, the zero-order-term spectrum and the −1 term spectrum must be eliminated during the digital reconstruction. At the same time, digital holographic microscopy has changed from the … eastwood mall ohio nilesWebOct 22, 2014 · DMDs have been used for phase modulation by using binary amplitude off-axis holography to generate a wavefront with arbitrary phase from a binary amplitude pattern [ 7 ]. The downside to this approach is that creating the off-axis hologram requires writing a grating with the DMD which limits the number of channels, N, that are used for … eastwood manor bronx nyWebA wavefront is optimized imaging a sample. A binary off-axis hologram is encoded by selective adoption of states for each mirror of a deformable mirror device, which is illuminated with an incident beam of light. A single diffraction order that has encoded phase-mask information is selected from light reflected from the deformable mirror device and … cummins cmep addressWebApr 6, 2016 · In this work, the use of binary amplitude holography is investigated as a mechanism to focus broadband acoustic pulses generated by high peak-power pulsed … eastwood manor crystal beach ontarioWebMar 4, 2013 · High-speed phase-control of wavefronts with binary amplitude DMD for light control through dynamic turbid media Conkey, Donald B.; Caravaca-Aguirre, Antonio M.; Niv, Eyal; Piestun, Rafael Proceedings of SPIE , Volume 8617 – Mar 4, 2013 Read Article Download PDF Share Full Text for Free 6 pages Article Details Recommended … eastwood management rochester ny