Three-dimensional holographic lithography by an iterative algorithm

June, 2011

Author(s): Joshua J. Cowling, Gavin L. Williams, Alan Purvis, Richard McWilliam, Jose J. Toriz-Garcia, Nicholas L. Seed, Florian B. Soulard, and Peter A. Ivey

Abstract:

“We have applied an iterative algorithm for hologram design with multiple output image planes arranged in close proximity to create continuous patterns within an imaging volume. These holograms have been designed for photolithography on three-dimensional surfaces. The influence of simulated image plane separation on the final image, and its suitability for lithography, is assessed. Results are presented and the most suitable case is demonstrated experimentally.”

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Publication: Optics Letters, (subscription required)

Issue/Year/DOI: Optics Letters, Vol. 36, Issue 13, pp. 2495-2497 (2011)
doi:10.1364/OL.36.002495


Nonlinear response studies and corrections for a liquid crystal spatial light modulator

June, 2010

Author(s): RAVINDER KUMAR BANYAL, B. RAGHAVENDRA PRASAD

Abstract:

“The nonlinear response of light transmission characteristics of a liquid crystal (LC) spatial light modulator (SLM) is studied. The results show that the device exhibits a wide range of variations with different control parameters and input settings. Experiments were performed to obtain intensity modulation that is best described by either power-law or sigmoidal functions. Based on the inverse transformation, an appropriate pre-processing scheme for electrically addressed input gray-scale images, particularly important in several optical processing and imaging applications, is suggested. Further, the necessity to compensate the SLM image nonlinearities in a volume holographic data storage and retrieval system is demonstrated.”

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Publication: PRAMANA Journal of Physics (free download)

Issue/Year/DOI: PRAMANA Journal of Physics, Vol. 74, No. 6, June 2010, pp. 961-971


Materials for an Updatable Holographic 3D Display

May, 2010

Author(s): Cory W. Christenson, Pierre-Alexandre Blanche, Savas Tay, Ram Voorakaranam, Tao Gu, Weiping Lin, Peng Wang, Michiharu Yamamoto, Jayan Thomas, Robert A. Norwood, and Nasser Peyghambarian

Abstract:

“Holography is a powerful technique for providing high-resolution, realistic three-dimensional (3D) images without the need for special eyewear. A material that takes full advantage of the potential of holography, including updatability, has not existed. Here, the first updatable holographic 3D display based on a photorefractive polymer is summarized. The performance characteristics of these materials are measured, and how they relate to the development of additional display enhancements such as pulsed writing, white light viewing, and large viewing angle, are discussed.”

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Publication: Journal of Display Technology – via IEEE Xplore (subscription required)

Issue/Year/DOI: Journal of Display Technology, Issue: 99, pp1-7, (2010)
DOI: 10.1109/JDT.2010.2046620


Digital Holographic Capture and Optoelectronic Reconstruction for 3D Displays

December, 2009

Author(s): Damien P. Kelly, David S. Monaghan, Nitesh Pandey, Tomasz Kozacki, Aneta Michałkiewicz, Grzegorz Finke, Bryan M. Hennelly, Malgorzata Kujawinska

Abstract:

“The application of digital holography as a viable solution to 3D capture and display technology is examined. A review of the current state of the field is presented in which some of the major challenges involved in a digital holographic solution are highlighted. These challenges include (i) the removal of the DC and conjugate image terms, which are features of the holographic recording process, (ii) the reduction of speckle noise, a characteristic of a coherent imaging process, (iii) increasing the angular range of perspective of digital holograms (iv) and replaying captured and/or processed digital holograms using spatial light modulators. Each of these challenges are examined theoretically and several solutions are put forward. Experimental results are presented that demonstrate the validity of the theoretical solutions.”

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Publication: International Journal of Digital Multimedia Broadcasting, (free download)

Issue/Year/DOI: International Journal of Digital Multimedia Broadcasting, Volume 2010 (2010), Article ID 759323
doi:10.1155/2010/759323


Microdisplays in holographic mastering applications

May, 2009

Author(s): Sven Plöger, Sven Krüger, Stefan Osten, Günther Wernicke

Abstract:

“We demonstrate implementation and performance of microdisplay systems based on liquid-crystal technology in a variety of applications in holographic mastering. These displays can encode 2D objects information in grey scale or address holographic patterns in amplitude or phase. The main advantage is here to address any content dynamically with typically 60 Hz. Furthermore they show a resolution up to 1920×1200 pixels with a pixel size as small as 6.4 microns. Therefore they are extremely suitable for a dynamic or multi-exposure mastering process, to incorporate image content, phase-encode objects or any holographic features. This technology is already being used in holographic security applications as well as in commercial and display holography. We report about a few applications/implementations and show experimental results and performance parameters.

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Publication: SPIE Proceedings, (subscription required)

Issue/Year/DOI: Proc. SPIE, Vol. 7358, 73581H (2009);
doi:10.1117/12.823474


A high-capacity storage device for communications and multimedia systems

September, 2007

Author(s): Z. Y. Chen, Po S. Chung

Abstract:

“This paper introduces a high-capacity storage device based on the holographic optical disc storage system and applied field. It details a novel configuration of a single beam holographic storage system. Through coding the object light and reference light in same optical beam with a spatial light modulator (SLM), we achieve the aim of interference storage. The experimental results indicated this configuration can be used commercially. This system has the advantages of huge memory capacity and high access speed, thus offering a very useful storage alternative in the internet areas of communications and multimedia systems.”

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Publication: SPIE Proceedings, (subscription required)

Issue/Year/DOI: Proc. SPIE, Vol. 6775, 67750S (2007);
DOI:10.1117/12.730495


Hybrid multinary modulation using a phase modulating spatial light modulator and a low-pass spatial filter

August, 2007

Author(s):

Abstract:Zoltán Göröcs, Gábor Erdei, Tamás Sarkadi, Ferenc Ujhelyi, Judit Reményi, Pál Koppa, and Emoke Lorincz

“We propose a method for performing binary intensity and continuous phase modulation of beams with a spatial light modulator (SLM) and a low-pass spatial filtering 4-f system. With our method it is possible to avoid the use of phase masks in holographic data storage systems or to enhance the phase encoding of the SLM by making it capable of binary amplitude modulation. The data storage capabilities and the limitations of the method are studied.”

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Publication: Optics Letters, (subscription required)

Issue/Year/DOI: Optics Letters, Vol. 32, Issue 16, pp. 2336-2338 (2007)
doi:10.1364/OL.32.002336


How to create and detect N-dimensional entangled photons with an active phase hologram

June, 2007

Author(s): Martin Stütz, Simon Gröblacher, Thomas Jennewein, Anton Zeilinger

Abstract:

“The experimental realization of multidimensional quantum states may lead to unexplored and interesting physics, as well as advanced quantum communication protocols. The orbital angular momentum of photons is a well suitable discrete degree of freedom for implementing high-dimensional quantum systems. The standard method to generate and manipulate such photon modes is to use bulk and fixed optics. Here the authors demonstrate the utilization of a spatial light modulator to manipulate the orbital angular momentum of entangled photons generated in spontaneous parametric downconversion. They show that their setup allows them to realize photonic entanglement of up to 21 dimensions, which in principle can be extended to even larger dimensions.”

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Publication: Applied Physics Letters, (subscription required)

Issue/Year/DOI: Appl. Phys. Lett. 90, 261114 (2007);
doi:10.1063/1.2752728


Angle multiplexed storage with object beam alone

May, 2007

Author(s): Hon-Fai Yau, Jung-Ping Liu

Abstract:

“Making use of the interference of incident light waves and the accompanying fanning waves in a photorefractive LiNbO3 crystal, the authors have recorded binary images as well as gray-tone images in a crystal with only an object beam. Angle multiplexing has also been demonstrated with this one beam recording method. Basing on a model that the recording is accomplished through the interference of the object light and its fanning light, the authors have estimated the minimal angular separation for achieving a cross-talk-free multiplexing.”

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Publication: Applied Physics Letters, (subscription required)

Issue/Year/DOI: Appl. Phys. Lett. 90, 181916 (2007);
DOI:10.1063/1.2733629


Holographic recording in Fe:Ce:Ti doped LiNbO3 crystal

March, 2007

Author(s): Ravinder Kumar Banyal, B. Raghavendra Prasad

Abstract:

“High diffraction efficiency measurements in a triply doped Fe:Ce:Ti–LiNbO3 crystal are reported. The crystal shows an improved recording sensitivity, weak light-induced scattering and extremely slow readout erasure which makes it highly desirable for non-volatile data storage applications. The suitability of the crystal was demonstrated by high quality holographic recording and retrieval of several astronomical images using shift and rotational multiplexing scheme.”

Link to Publications Page

Publication: Optics Communications – via ScienceDirect.com (subscription required)

Issue/Year/DOI: Optics Communications, Volume 274, Issue 2, 15 June 2007, Pages 300-306
doi:10.1016/j.optcom.2007.02.029