Holographic simultaneous readout polarization multiplexing based on photoinduced anisotropy in bacteriorhodopsin

Koek, W.D.; Bhattacharya, Nandini; Braat, Joseph J. M.; Chan, Victor S. S.; Westerweel, J.

doi:10.1364/ol.29.000101

Cited by 36 publications

(14 citation statements)

References 8 publications

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“…In order to avoid the readout crosstalk brought by the common volume multiplexed holograms using shift multiplexing, angle multiplexing etc., we use polarization multiplexing based on the anisotropic photochromic material [8][9][10] . A scheme of simultaneous dual-wavelength readout holographic system for is implemented.…”

Section: Simultaneous Dual-wavelength Readout Based On Polarization Mmentioning

confidence: 99%

Study of dual-wavelength readout properties in volume holographic storage system

Chen

Luo

Cao³

et al. 2006

SPIE Proceedings

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Dual-wavelength method is a research focus in nonvolatile holographic storage. However, both theoretical analysis and experimental demonstration that nonlinear enlargement is inevitable during dual-wavelength readout. By analyzing the speciality of nonlinear enlarge factor, a method of choosing the suitable retrieving angle is proposed, which can prove the uniform enlarge factor and a least efficiency of 44% at a thin thickness such as 10 um to that of Bragg match. In this paper, At last, a novel scheme which achieves simultaneous dual-wavelength readout of two polarization multiplexed holograms is proposed and demonstrated by the experiment.

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Section: Simultaneous Dual-wavelength Readout Based On Polarization Mmentioning

confidence: 99%

Study of dual-wavelength readout properties in volume holographic storage system

Chen

Luo

Cao³

et al. 2006

SPIE Proceedings

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“…Bacteriorhodopsin (BR), a photochromic biological protein found in the purple membrane of the bacterium Halobacterium salinarum, is one of the promising candidates for all-optical Boolean logic gates because of its unique optical properties, e.g. large optical nonlinearity, high quantum efficiency of the photoreaction, fast response, high spatial resolution, excellent stability and fatigue resistance [8][9][10][11]. Various methods of optical logic operation based on BR films have been proposed.…”

Section: Introductionmentioning

confidence: 99%

All-optical logic gates based on photoinduced anisotropy of bacteriorhodopsin film

Han

Gao

Chen

et al. 2012

Journal of Modern Optics

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All-optical logic gates based on photoinduced anisotropy of bacteriorhodopsin (BR) film are proposed. The photoinduced anisotropy in BR film, which arises from the selective absorption of BR molecules to polarized light, can be controlled by changing the amplitudes and polarizations of exiting beams. As a consequence, the polarization of the probe light passing through the BR film can be controlled by the polarization of the exiting beam. Based on this property, a novel scheme of all-optical logic gates, such as AND, OR, XOR and NOT, has been implemented via the pump-probe technique. A theoretical model for the all-optical logic gates is proposed, and the theoretical predictions are demonstrated with the experimental results.

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“…Polarization holography using polarization-sensitive materials is one of the principal strategy for fabricating polarization gratings [1]. Advanced applications that use the diffraction characteristics have been proposed such as image holograms [2][3][4][5][6], logic operations [7], photopolarimeters [8][9][10][11][12][13][14], diffractive waveplates [15], and beam controller [16]. Nersisyan and coworkers reported the potentials of optical axis gratings as a subclass of polarization gratings for optical switching applications, intensively and extensively [17].…”

Section: Introductionmentioning

confidence: 99%

Formation of positive and negative anisotropic holographic gratings depending on recording energy in photoreactive liquid crystalline copolymer films

et al. 2012

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Anisotropic diffractive gratings formed by birefringent molecular alignment are fabricated by a holographic technique using a photo-cross-linkable liquid crystalline copolymer (PLCCP). Depending on the exposure energy used for holographic recording, bright or dark regions of the interference fringe can be chosen for the molecularaligned region, analogous to positive-and negative-type photoresist processing in photolithography. In conjunction with simultaneously generated surface relief gratings, the anisotropic refractive index modulation inherent in the PLCCP film exhibits different diffraction properties depending on the incident beam polarization. The anisotropic refractive index grating profiles are quantitatively presented for two cases determined by the exposure energy, based on the Fourier analysis of diffractive optics. The selection of different grating formations selected by varying only the ex-A. Emoto ( ) posure energy could provide a strategy for the fabrication of functionalized diffractive optical elements.

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Holographic simultaneous readout polarization multiplexing based on photoinduced anisotropy in bacteriorhodopsin

Cited by 36 publications

References 8 publications

Study of dual-wavelength readout properties in volume holographic storage system

Study of dual-wavelength readout properties in volume holographic storage system

All-optical logic gates based on photoinduced anisotropy of bacteriorhodopsin film

Formation of positive and negative anisotropic holographic gratings depending on recording energy in photoreactive liquid crystalline copolymer films

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