Non-iterative phase hologram generation with optimized phase modulation
نویسندگان
چکیده
منابع مشابه
Non-iterative phase hologram computation for low speckle holographic image projection.
Phase-only spatial light modulators (SLMs) are widely used in holographic display applications, including holographic image projection (HIP). Most phase computer generated hologram (CGH) calculation algorithms have an iterative structure with a high computational load, and also are prone to speckle noise, as a result of the random phase terms applied on the desired images to mitigate the encodi...
متن کاملModulation efficiency of double-phase hologram complex light modulation macro-pixels.
The modulation efficiency of the double-phase hologram macro-pixel that is designed for complex modulation of light waves is defined and analyzed. The scale-down of the double-phase hologram macro-pixel associated with the construction of complex spatial light modulators is discussed.
متن کاملRandom phase-free computer-generated hologram.
Addition of random phase to the object light is required in computer-generated holograms (CGHs) to widely diffuse the object light and to avoid its concentration on the CGH; however, this addition causes considerable speckle noise in the reconstructed image. For improving the speckle noise problem, techniques such as iterative phase retrieval algorithms and multi-random phase method are used; h...
متن کاملIterative Correction of Phase Noise in Multicarrier Modulation
We investigate a phase noise suppression algorithm which estimates the Fourier components of the phase noise process to eliminate intercarrier interference in addition to standard common phase error correction. With coded transmission the system is equivalent to a serial concatenation of an outer code with the inner channel affected by phase noise. An APP decoder is employed to minimize feedbac...
متن کاملWavefield imaging via iterative retrieval based on phase modulation diversity.
We present a fast and robust non-interferomentric wavefield retrieval approach suitable for imaging of both amplitude and phase distributions of scalar coherent beams. It is based on the diversity of the intensity measurements obtained under controlled astigmatism and it can be easily implemented in standard imaging systems. Its application for imaging in microscopy is experimentally studied. R...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2020
ISSN: 1094-4087
DOI: 10.1364/oe.391518