Session Index

Optical Information Processing and Holography

Poster Session Ⅱ
Saturday, Dec. 5, 2015  17:10-18:00
Paper No.  2015-SAT-P0402-P001
Wen-Cheng Chang Optical control algorithms for inverse wave diffusion

Opaque media is like teeth or human tissue. Coherent light can be focused through them and the principle is applied in therapy. The two different optimization algorithms are programed. To approach the actual situation, a noise is added to the algorithms. And the algorithms are applied in our optical path.

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Paper No.  2015-SAT-P0402-P002
Yi Hsin Huang A Real-Time interactive Augmented Reality

To perform Augmented reality perfectly by computer generated hologram(CGH), we optimize Iterative Fourier Transformation Algorithm, and connect the sensor to the control center to enable the CGH interacting with people. Finally, we proposed a data compression method that can enhance generation speed such that real-time CGH can be achieved.

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Paper No.  2015-SAT-P0402-P003
Varvara Semenova Numerical simulation of free-space broadband vortex terahertz beams propagation

In this study we present a numerical simulation of free-space propagating broadband terahertz vortex beams generated by a spiral phase plate (SPP). The algorithm based on scalar diffraction theory was used to obtain the spatial amplitude and phase distributions of the vortex beam in the frequency range from 0.1 to 3 THz.

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Paper No.  2015-SAT-P0402-P004
Jia-Wei Hong Displaying Layered Images Using a Diffractive Volumetric Three-Dimensional Projection System

We presented a diffractive volumetric 3D projection system to display 3D layered images. This system contained a phase-only spatial light modulator, a modified mirascope, and a diffusing cube. The images were produced by phase-only diffractive optical elements designed by using an iterative angular spectrum algorithm.

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Paper No.  2015-SAT-P0402-P005
Bo-Yan Chen Scanning Fringe Projection for 3D Shape Measurements

A scanning method using fringe projection to perform the 3D shape measurements is proposed. A reliable image processing method is provided to enhance the accuracy of the scanning fringe projection technique. Noises and errors for surfaces on the edge area can be efficiently detected and reduced.

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Paper No.  2015-SAT-P0402-P006
Xiaomin Zhai Holographic light-sheet fluorescence microscopy for one-shot multi-plane imaging

Light-sheet based microscopic techniques offer the ability to acquire optically sectioned fluorescence images with good background rejection for tissue imaging in wide-field fashion; however, none of these techniques have the capability to image multiple fluorescent planes at the same time. In this paper, we present an imaging scheme, incorporating side illumination with multiple light-sheets and multiplexed volume holographic gratings, to simultaneously obtain multi-plane images with optical sectioning capability, and no need for any axial scanning. The proposed imaging geometry is configured such that different depths inside an object are illuminated from side by multiple light sheets, and also serve as the input focal planes for subsequent multiplexed volume holographic imaging gratings. We present the design, implementation, and experimental image data demonstrating the proposed system’s ability to obtain optically sectioned and multi-plane images of fluorescently labeled biological tissue samples in one shot.

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Paper No.  2015-SAT-P0402-P007
Jyh Rou Sze The influence of quantized diffractive phase element on gradient axial beam

The simulation implementation of quantized diffractive phase element (DPE) which generates gradient axial beam (GAB) along the optical axis is described. In order to evaluate the influence of numbers of quantization levels of DPE on the axial intensityce, the illuminance distribution of GAB along the optical axis is calculated and analyzed. The analyses reveal that the quantization effect of DPE obviously casuses the fluctuation in the axial distribution of GAB.

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Paper No.  2015-SAT-P0402-P008
Wan-Hsueh Lai Study of Decorrelation Time Constant for Laser Speckle Imaging

Combining laser speckle imaging with diffusion theory, we acquire decorrelation time constant as function of radial distance from illuminated center. We use 150 micrometer cover glass and 1050 micrometer glass slide for testing. The radial distance of inflection point can be used to qualitatively distinguish the thickness of glass layer.

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Paper No.  2015-SAT-P0402-P009
Hao-Yu Tsai Fabrication of Holographic Materials by Poly Methyl Methacrylate and Methacrylic Acid

A fabrication approach using poly(methyl methacrylate) (PMMA) and methacrylic acid (MA) for holographic materials is presented. To increase the diffraction efficiency, the high refractive index species is filled into the materials. Performance of the diffraction efficiency is evaluated.

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Paper No.  2015-SAT-P0402-P010
Ming-Shu Hsiao Modulating the Optical Coherence of Light Source with phase SLM

Highly coherent property of laser often yields laser speckles which influence the image quality in many optical systems. In this paper, we designed an optical system to modulate the degree of coherence of incoming field by applying random phase screens to the light source with phase SLM, trying to reduce the effect of laser speckles.

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Paper No.  2015-SAT-P0402-P011
Wei-Lun Lan Synthesis of three Azobenzene-based Composites and their Characteristics for Holographic Storage

Three azobenzene-based composites are fabricated for optical storage. Performances of their diffraction efficiencies are evaluated.

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Paper No.  2015-SAT-P0402-P012
Chih-Hao Chuang The Evaluation of Image Quality for Full-color Computer Generated Holography Projection System

The image quality of the full-color computer generated holography is investigated in this study. Modified Gerchberg-Saxton Algorithm and a color-full CGH projection system are used for reconstructing the color-full holographic image. Then a series methods to analyze the full-color holography image is discussed.

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Paper No.  2015-SAT-P0402-P013
Xin-De Xie Fabrication of Photopolymerizable Silica with High Refractive Index Species by Sol-Gel Process

A holographic material based on photopolymerizable silica was prepared by sol-gel process Diffracrion efficiency and selectivity of this holographic material is described as well.

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Paper No.  2015-SAT-P0402-P014
Yen-Chang Chu Measurement of small displacements with characteristic of surface plasmon resonance

Using a surface plasmon resonance apparatus and the common-path heterodyne interferometry, a modified method is presented to measure the small displacements. The validity of this method was demonstrated experimentally, and the displacement measurement resolution is about 61.08 nm.

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Paper No.  2015-SAT-P0402-P015
I Chun Tsai CGH realization with MATLAB

Holography has a long researching history. There are many types of holography and applications since the development of the technology. Computer generated hologram (CGH) is a popular research topic in recently years. CGH has many applications in bio-medicine, entertainment, and education. In this paper, we investigate and modify IFTA algorithm for CGH. We perform computer simulation with MATLAB.

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Paper No.  2015-SAT-P0402-P016
Shang-Hao Huang Iterative Angular Spectrum Algorithm (IASA) for the Application of 3D Volumetric Projection Display

We developed an algorithm which combined the angular spectrum and the iterative optimization algorithm, called iterative angular spectrum algorithm (IASA). The IASA overcome several problems in simulation of propagation of optical waves. The spatial light modulator displayed the diffractive optical elements designed using the IASA, and successfully generated 3D images.

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Paper No.  2015-SAT-P0402-P017
Chu lung Chen Optimization of Multi-Channel Optoelectronic Recognition System with Simulated Annealing by Normalized CIELab Color Space

The main idea of this research is to improve the quantization effects, in order to produce much better CPI value by using simulated annealing (SA) method. A color image was transformed into CIELab color space components to yield proper reference function for image recognition.

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Paper No.  2015-SAT-P0402-P018
Jui-Yang Wu Study on measurement of in-plane displacement by using three holographic gratings

In this paper,we demonstrated the theoretical calculation of the equivalent grating pitch of the combination of the triple holographic diffraction gratings which applied to use for in- plan displacement measurement arranged in four optical configurations. Both wave-vector analysis method and diffracted order analysis method are considered. The experiment results indicated that the diffracted order analysis method showed good agreement to the measurement results in four optical configurations. Besides, the best resolution of the in-plan displacement can be reached to 0.55 nm which measured by the equivalent grating pitch of 2.08 m.

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Paper No.  2015-SAT-P0402-P019
Semen Smirnov Spatial-Temporal Dynamics of The Terahertz Field Generated by a Femtosecond Filament

We presented the spatial distribution of the maximum of terahertz field in time domain when generated by a femtosecond filament. It is shown that as a result of the propagation of the terahertz field forms a spherical wave front, on the edge of which the maximum of amplitude has a temporary delay in contrary to its central part.

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Paper No.  2015-SAT-P0402-P020
Wen-Kai Lin Orthogonal Polarization Holographic Storage with Polymer-Dispersed-Liquid-Crystal Diffuser Device

A polymer-dispersed-liquid-crystal device is applied to holographic storage system. Because the polarization of one beam is changed by the device, information can be recorded by interference of two beams with orthogonal polarization states.

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