New Techniques in Digital Holography /
This book proposal for the "instrumentation & measurement" collection of ISTE-Wiley is devoted to special techniques in digital holography. The co-authors aim at establishing a synthetic stat-of-the-art of important advances in the field of digital holography. We are interested in deta...
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| Format: | eBook |
| Language: | English |
| Published: |
London, UK : Hoboken, NJ :
ISTE Ltd ; John Wiley and Sons, Inc.,
2015.
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| Series: | Instrumentation and measurement series.
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| Subjects: | |
| Online Access: | Connect to the full text of this electronic book |
Table of Contents:
- Cover; Title Page; Copyright; Content; Introduction; I.1. Bibliography; 1: Basic Fundamentals of Digital Holography; 1.1. Digital holograms; 1.1.1. Interferences between the object and reference waves; 1.1.2. Role of the image sensor; 1.1.2.1. Spatial sampling and Shannon conditions; 1.1.2.2. Low-pass filtering; 1.1.2.3. Effect of the exposure time; 1.1.2.4. Recording digital color holograms; 1.1.3. Demodulation of digital holograms; 1.1.3.1. Off-axis holograms; 1.1.3.2. Phase-shifting digital holography; 1.1.3.3. Parallel phase-shifting; 1.1.3.4. Heterodyne digital holography.
- 1.2. Back-propagation to the object plane1.2.1. Monochromatic spherical and plane waves; 1.2.2. Propagation equation; 1.2.3. Angular spectrum transfer function; 1.2.4. Kirchhoff and Rayleigh-Sommerfeld formulas; 1.2.5. Fresnel approximation and Fresnel diffraction integral; 1.3. Numerical reconstruction of digital holograms; 1.3.1. Discrete Fresnel transform; 1.3.1.1. Algorithm; 1.3.1.2. Spatial resolution in the reconstructed plane; 1.3.1.3. Effect of defocus and depth of focus; 1.3.1.4. Effect of zero-padding; 1.3.2. Reconstruction with convolution; 1.3.2.1. Basic algorithm.
- 1.3.2.2. Limits of classical approaches of convolution1.3.2.3. Zero-padding of the impulse response; 1.3.2.4. Adjustable magnification; 1.4. Holographic setups; 1.4.1. Fresnel holography; 1.4.2. Fresnel holography with spatial spectrum reduction; 1.4.3. Fourier holography; 1.4.4. Lensless Fourier holography; 1.4.5. Image-plane holography; 1.4.6. Holographic microscopy; 1.4.7. In-line Gabor holography; 1.5. Digital holographic interferometry; 1.5.1. Reconstruction of the phase of the object; 1.5.2. Optical phase variations and the sensitivity vector; 1.5.3. Phase difference method.
- 1.5.4. Phase unwrapping1.6. Quantitative phase tomography; 1.7. Conclusion; 1.8. Bibliography; 2: Digital In-line Holography Applied to Fluid Flows; 2.1. Examples of measurements in flows; 2.1.1. Increasing NA with a divergent wave; 2.1.2. Choice of the magnification; 2.1.3. 3D velocity measurements in a turbulent boundary layer; 2.1.3.1. Recording holograms through a window-reticle; 2.1.3.2. Error estimations; 2.1.3.3. Velocity measurements; 2.1.4. Cavitation bubbles measurements; 2.1.4.1. Experimental setup; 2.1.4.2. Bubble measurements; 2.1.4.3. Experimental results.
- 2.2. The fractional-order Fourier transform2.3. Digital in-line holography with a sub-picosecond laser beam; 2.4. Spatially partially coherent source applied to the digital in-line holography; 2.5. Digital in-line holography for phase objects metrology; 2.5.1. In-line holograms of transparent phase objects; 2.5.1.1. CW regime; 2.5.1.2. General theory for complex setup; 2.5.1.3. Ultrashort pulse illumination; 2.5.2. Reconstruction; 2.5.3. Experimental results; 2.6. Bibliography; 3: Digital Color Holography For Analyzing Unsteady Wake Flows; 3.1. Advantage of using multiple wavelengths.