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Session Index

Optical Information Processing and Holography

Poster Session 2
Thursday, Dec. 4, 2014  16:40-17:50
Chair:
Room:
Notes:
17:00 - 17:50 Paper No.  2014-Thu-P0402-P001
Jyh Rou Sze Axial Gradient beams
JyhRou Sze,AnChi Wei,

The development of diffractive optical element (DOE) which generates gradient axial beam (GAB) along the optical axis is carried out. The dsired DOE is designed by using the numerical algorithm of conjugated gradient method. In order to evaluate its optical performance, the illuminance distribution of GAB along the optical axis is calculated and analyzed. The analyses reveal that the quantization effect of DOE obviously casuses the fluctuation in the axial distribution of AGB.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P004
Wen-Chun Yu Optical compressed sensing technique based on a few exposures in the Fresnel domain
Wen-Chun Yu,Hone-Ene Hwang,

Differ from conventional optical compressed sensing (CS) technique based on Fourier transform requires lenses, this study presents optical lensless scheme to achieve CS in the Fresnel domain. High-resolution image reconstruction based on compressed sensing technique with a low-resolution CCD camera from a few exposure of optical random phase encoding mask is also demonstrated.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P005
Chih-Ya Wu Image-based spectral reconstruction using weighted principal component analysis
Chih-Ya Wu,Sheng-Hsun Hsieh,Meng-Chieh Lin,Chung-Hao Tien,

In this study, we developed a multispectral imaging system based on a fully computational scheme: weighted principal component analysis (wPCA). We examine the algorithm to reconstruct the spectral reflectance of a full-color picture with LED illumination. Spectral error in average (0.22 rms) across the visible wavelength validates the procedure successfully.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P008
Chang Wen-Cheng Opaque media focusing by active optical control
Chang Wen-Cheng,Chou Hsin-Yao,Chuang Chin-Jung,

Materials such as teeth, milk or human tissue are opaque. We have shown that coherent light can be focused through them and the principle can be applied in therapy. The two different optimization algorithms are programmed. To approach the actual situation, we add a noise to the algorithms.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P009
Che-Chu Lin The Analysis of the Scattering Effect in the Holographic Data Storage System by the Semi-Automatic Screen Image Synthesis Measuring Device
Che-Chu Lin,Yeh-Wei Yu,Ching-Cherng Sun,

In this paper, we build a bidirectional scattering distribution function measuring device to detect the scattering distribution. It benefits the analysis of recording medium in the holographic storage system.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P012
Yung-Chi Chen 3D shape measurements using scanning fringe projection techniques
Nai-Jen Cheng,Yung-Chi Chen,Wei-Hung Su,

A scanning approach using fringe projection techniques to perform the 3D shape measurement for a complicated object is proposed. Shadowing caused by tilted fringe projection can be eliminated as well. Even though the depth discontinuity on the inspected surface is pretty high, the proposed method can retrieve the 3D shape precisely.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P013
Xiaomin Zhai Depth resolution improvement of volume holographic imaging systems with light-sheet plane illumination
Xiaomin Zhai,Yuan Luo,

In this letter we present an advanced volume holographic microscope whose depth resolution is improved by using light-sheet side illumination. In our system, the fluorescent signals only originate from the focal section which is excited by light-sheet illuminated. The out-of-focus signal is massively suppressed, so the depth resolution is hugely enhanced.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P016
Chih-Hung Chen Real-image Disk-type Multiplex Holography with Diverging Object Wave
Yih-Shyang Cheng,Gym-Fone Lin,Chih-Hung Chen,

Real-image generation of disk-type multiplex hologram for 360-degree viewing is introduced in this study. With diverging object wave in the hologram-forming process, relatively larger reconstructed images can be obtained from this type of multiplex hologram.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P017
Chih-Hung Chen Image Transformation and Replication in 360-degree Viewable Disk-type Multiplex Hologram
Yih-Shyang Cheng,Chih-Hung Chen,

In this study, real-image and virtual-image generation in 360-degree viewable disk-type multiplex holograms are described. Optical setup of holographic replication for virtual-image display using real-image master hologram is also introduced.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P018
Ren Chung Liu Near Infrared Sensitive Organic-Inorganic Hybrid Device
RenChung Liu,Vera Marinova,ShiuanHuei Lin,KenYuh Hsu,

A near infrared organic-inorganic hybrid device based on photorefractive Rh-doped Bi12TiO20 (BTO) substrate and liquid crystal (LC) cell is proposed. The device works as spatial light modulator and it’s electrical and optical modulation characteristics are measured and discussed.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P019
Tzu-Hao Hsiung Optical measurement of solar cell by using two-reference-arm, phase-sensitive optical coherence tomography
Tzu-Hao Hsiung,Cheng-Chuan Li,Feng-Yu Chang,Zhung-Fu Lee,Ting-Yen Tsai,Ya-Ju Lee,Meng-Tsan Tsai,

Abstract—In this study, we propose to use phase-sensitive optical coherence tomography (PS-OCT) for inspection of solar cells. However, suffering from intrinsic phase noise in OCT system, we develop an approach to reduce phase noise. By extracting the amplitude and phase signals from OCT interference signals, the three-dimensional structure of solar cell can be obtained as well as the nanostructures on arbitrary planes of solar cell simultaneously. The conventional OCT results show that different layer structures can be obtained and quantitatively evaluated. In contrast, from the phase signal, the inverted pyramid structure can be visualized, which is widely used for reduction of interface reflection. Finally, based on the proposed configuration, a parameter of surface reflection coefficient is defined to evaluate the interface reflection from the surface of solar cell. Results show that OCT can be a potential tool for providing nondestructive inspection of micro/nanostructures on solar cell at a depth range of 3 mm.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P020
Po-Chin Huang Profile measurements for non-diffusive objects
Po-Chin Huang,Wei-Hung Su,

A scanning approach using fringe projection techniques to perform the 3D profile measurement for a non-diffusive object is proposed. It employs a hologram as the fringe projection device. Even though the inspected object is non-diffusive, the proposed method can retrieve the 3D shape precisely. Surfaces with depth discontinuities can be retrieved very well.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P021
En-Li Lin Fabrications of Photonic Crystals with Various Microstructures in Polystyrene-block-Poly(2-vinylpyridine) Block Copolymer Thin Films
En-Li Lin,Yeo-Wan Chiang,

The BCP photonic reflectors with various microstructures can be fabricated from the self-assembly of the PS-P2VP BCP thin films. The significantly different optical properties associated with the microstructural shapes are promising to be applied in various applications.

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17:00 - 17:50 Paper No.  2014-Thu-P0402-P022
Xin-Ji Lai Comparison of phase reconstruction algorithms accuracy in off-axis digital holography
AndreiV. Belashov,NikolayV. Petrov,Xin-Ji Lai,Chau-Jern Cheng,

The paper presents the results of the comparison of the following digital off-axis hologram reconstruction algorithms accuracy: spatial filtering in Fourier plane and complex wave retrieval method. Based on the experimentally recorded digital hologram of the calibrated step, a study of the quality of these DH techniques methods was performed.

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