Abstract

We developed a sensitive two-color-absorption photopolymer in which holograms are recorded by simultaneous irradiation with a 660nm interference light and a 410nm gate light. Doped with bis(silyl)pentathiophene as a two-color-photosensitive dye and 2,2-dimethoxy-2-phenylacetophenone as a radical photopolymerization initiator; its matrix contains low-refractive index binding polymers and high-refractive index monomers. The sensitivity and diffraction efficiency of 25μm thick layers are from 1.2×109 to 3.7×109cm2/mJ and from 1% to 4%. We made a three-photopolymer-layer waveguide structure, where each photopolymer layer and high-refractive index adhesive layer serves as a core layer and is sandwiched between two low-refractive index glass substrates that serve as clad layers. Gate light propagated through the adhesive layers, reference and object beams intersected the photopolymer layers, and different diffraction patterns could be written in each layer.

© 2007 Optical Society of America

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    [CrossRef] [PubMed]
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  4. I. Ichimura, K. Saito, T. Yamasaki, and K. Osato, "Proposal for a multilayer read-only-memory optical disk structure," Appl. Opt. 45, 1794-1803 (2006).
    [CrossRef] [PubMed]
  5. I. Ichimura, K. Saito, T. Yamasaki, and K. Osato, "Proposal for multi-layer Blu-ray disc structure," presented at the International Symposium on Optical Memory, Jeju, South Korea, October 2004.
  6. O. M. Alpert, A. N. Shipway, Y. Takatani, K. Nakao, O. Eytan, D. Leigh, and M. Arise, "Dynamic two-photon recording and readout of over 100 layers of data," presented at the International Symposium on Optical Memory, Singapore, 21-25 October 2007.
  7. E. Walker, A. S. Dvornikov, K. Coblentz, S. Esener, and P. Rentzcpis, "253 GB recorded in two-photon 3D disk," presented at Technical Digest of Optical Data Storage, Portland, Oregon, 20-23 May 2007.
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    [CrossRef]
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    [CrossRef]
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    [CrossRef]

2007

O. M. Alpert, A. N. Shipway, Y. Takatani, K. Nakao, O. Eytan, D. Leigh, and M. Arise, "Dynamic two-photon recording and readout of over 100 layers of data," presented at the International Symposium on Optical Memory, Singapore, 21-25 October 2007.

E. Walker, A. S. Dvornikov, K. Coblentz, S. Esener, and P. Rentzcpis, "253 GB recorded in two-photon 3D disk," presented at Technical Digest of Optical Data Storage, Portland, Oregon, 20-23 May 2007.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

2006

K. Curtis, "Holographic professional archive drive," presented at the Technical Digest of International Symposium on Optical Memory, Takamatsu, Kagawa, Japan, 15-19 October 2006.

I. Ichimura, K. Saito, T. Yamasaki, and K. Osato, "Proposal for a multilayer read-only-memory optical disk structure," Appl. Opt. 45, 1794-1803 (2006).
[CrossRef] [PubMed]

2005

H. Horimai, X. Tan, and J. Li, "Collinear holography," Appl. Opt. 44, 2575-2579 (2005).
[CrossRef] [PubMed]

M. Miyamoto, M. Nakano, Y. Kawata, S. Miyata, and M. Nakabayashi, "Twenty layers recording and reading of bit data in a photochromic multilayered media fabricated with laminate process," presented at the Technical Digest of International Symposium on Optical Memory, Waikiki, Hawaii, July 2005.

2004

I. Ichimura, K. Saito, T. Yamasaki, and K. Osato, "Proposal for multi-layer Blu-ray disc structure," presented at the International Symposium on Optical Memory, Jeju, South Korea, October 2004.

N. Yamamoto, H. Tanigawa, T. Mizokuro, N. Tanigaki, H. Mochizuki, T. Hiraga, and T. Matsuo, "Mapping the distribution of refractive index in photopolymer film with scanning near-field optical microscopy," J. Photopolym. Sci. Technol. 17, 119-122 (2004).
[CrossRef]

M. Fujitsuka, Y. Oseki, M. Hara, X. Cai, A. Sugimoto, and T. Majima, "First direct observation of the higher triplet excited states of substituted oligothiophenes by two-color two-laser flash photolysis," Chem. PhysChem 5, 1240-1242 (2004).
[CrossRef]

2003

Y. Liu, K. Kitamura, S. Takekawa, M. Nakamura, Y. Furukawa, and H. Hatano, "Nonvolatile two-color holographic recording in nondoped near-stoichiometric lithium tantalate crystals with continuous-wave lasers," Appl. Phys. Lett. 82, 4218-4220 (2003).
[CrossRef]

2001

1999

S. Yagi, T. Imai, A. Tate, M. Hikita, S. Tomaru, S. Imamura, T. Tamamura, Y. Kurokawa, and M. Yamamoto, "Mutlilayered waveguide holographic memory card," Postdeadline Oral Papers of the International Symposium on Optical Memory, Kauai Island, Hawaii, July 1999.

1983

1982

Adachi, M.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

Akiyama, S.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

Alpert, O. M.

O. M. Alpert, A. N. Shipway, Y. Takatani, K. Nakao, O. Eytan, D. Leigh, and M. Arise, "Dynamic two-photon recording and readout of over 100 layers of data," presented at the International Symposium on Optical Memory, Singapore, 21-25 October 2007.

Alvarez, D. C.

Arise, M.

O. M. Alpert, A. N. Shipway, Y. Takatani, K. Nakao, O. Eytan, D. Leigh, and M. Arise, "Dynamic two-photon recording and readout of over 100 layers of data," presented at the International Symposium on Optical Memory, Singapore, 21-25 October 2007.

Bieringer, T.

Bjorklund, G. C.

Brauchle, C.

Burland, D. M.

Cai, X.

M. Fujitsuka, Y. Oseki, M. Hara, X. Cai, A. Sugimoto, and T. Majima, "First direct observation of the higher triplet excited states of substituted oligothiophenes by two-color two-laser flash photolysis," Chem. PhysChem 5, 1240-1242 (2004).
[CrossRef]

Coblentz, K.

E. Walker, A. S. Dvornikov, K. Coblentz, S. Esener, and P. Rentzcpis, "253 GB recorded in two-photon 3D disk," presented at Technical Digest of Optical Data Storage, Portland, Oregon, 20-23 May 2007.

Curtis, K.

K. Curtis, "Holographic professional archive drive," presented at the Technical Digest of International Symposium on Optical Memory, Takamatsu, Kagawa, Japan, 15-19 October 2006.

Dvornikov, A. S.

E. Walker, A. S. Dvornikov, K. Coblentz, S. Esener, and P. Rentzcpis, "253 GB recorded in two-photon 3D disk," presented at Technical Digest of Optical Data Storage, Portland, Oregon, 20-23 May 2007.

Esener, S.

E. Walker, A. S. Dvornikov, K. Coblentz, S. Esener, and P. Rentzcpis, "253 GB recorded in two-photon 3D disk," presented at Technical Digest of Optical Data Storage, Portland, Oregon, 20-23 May 2007.

Eytan, O.

O. M. Alpert, A. N. Shipway, Y. Takatani, K. Nakao, O. Eytan, D. Leigh, and M. Arise, "Dynamic two-photon recording and readout of over 100 layers of data," presented at the International Symposium on Optical Memory, Singapore, 21-25 October 2007.

Fujitsuka, M.

M. Fujitsuka, Y. Oseki, M. Hara, X. Cai, A. Sugimoto, and T. Majima, "First direct observation of the higher triplet excited states of substituted oligothiophenes by two-color two-laser flash photolysis," Chem. PhysChem 5, 1240-1242 (2004).
[CrossRef]

Furukawa, Y.

Y. Liu, K. Kitamura, S. Takekawa, M. Nakamura, Y. Furukawa, and H. Hatano, "Nonvolatile two-color holographic recording in nondoped near-stoichiometric lithium tantalate crystals with continuous-wave lasers," Appl. Phys. Lett. 82, 4218-4220 (2003).
[CrossRef]

Gerbig, V.

Grygier, R. K.

Hara, M.

M. Fujitsuka, Y. Oseki, M. Hara, X. Cai, A. Sugimoto, and T. Majima, "First direct observation of the higher triplet excited states of substituted oligothiophenes by two-color two-laser flash photolysis," Chem. PhysChem 5, 1240-1242 (2004).
[CrossRef]

Hatano, H.

Y. Liu, K. Kitamura, S. Takekawa, M. Nakamura, Y. Furukawa, and H. Hatano, "Nonvolatile two-color holographic recording in nondoped near-stoichiometric lithium tantalate crystals with continuous-wave lasers," Appl. Phys. Lett. 82, 4218-4220 (2003).
[CrossRef]

Hikita, M.

S. Yagi, T. Imai, A. Tate, M. Hikita, S. Tomaru, S. Imamura, T. Tamamura, Y. Kurokawa, and M. Yamamoto, "Mutlilayered waveguide holographic memory card," Postdeadline Oral Papers of the International Symposium on Optical Memory, Kauai Island, Hawaii, July 1999.

Hiraga, T.

N. Yamamoto, H. Tanigawa, T. Mizokuro, N. Tanigaki, H. Mochizuki, T. Hiraga, and T. Matsuo, "Mapping the distribution of refractive index in photopolymer film with scanning near-field optical microscopy," J. Photopolym. Sci. Technol. 17, 119-122 (2004).
[CrossRef]

Hiyama, T.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

Horimai, H.

Ichimura, I.

I. Ichimura, K. Saito, T. Yamasaki, and K. Osato, "Proposal for a multilayer read-only-memory optical disk structure," Appl. Opt. 45, 1794-1803 (2006).
[CrossRef] [PubMed]

I. Ichimura, K. Saito, T. Yamasaki, and K. Osato, "Proposal for multi-layer Blu-ray disc structure," presented at the International Symposium on Optical Memory, Jeju, South Korea, October 2004.

Imai, T.

S. Yagi, T. Imai, A. Tate, M. Hikita, S. Tomaru, S. Imamura, T. Tamamura, Y. Kurokawa, and M. Yamamoto, "Mutlilayered waveguide holographic memory card," Postdeadline Oral Papers of the International Symposium on Optical Memory, Kauai Island, Hawaii, July 1999.

Imamura, S.

S. Yagi, T. Imai, A. Tate, M. Hikita, S. Tomaru, S. Imamura, T. Tamamura, Y. Kurokawa, and M. Yamamoto, "Mutlilayered waveguide holographic memory card," Postdeadline Oral Papers of the International Symposium on Optical Memory, Kauai Island, Hawaii, July 1999.

Jager, C.

Kanbara, H.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

Kawata, Y.

M. Miyamoto, M. Nakano, Y. Kawata, S. Miyata, and M. Nakabayashi, "Twenty layers recording and reading of bit data in a photochromic multilayered media fabricated with laminate process," presented at the Technical Digest of International Symposium on Optical Memory, Waikiki, Hawaii, July 2005.

Kitamura, K.

Y. Liu, K. Kitamura, S. Takekawa, M. Nakamura, Y. Furukawa, and H. Hatano, "Nonvolatile two-color holographic recording in nondoped near-stoichiometric lithium tantalate crystals with continuous-wave lasers," Appl. Phys. Lett. 82, 4218-4220 (2003).
[CrossRef]

Kurihara, T.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

Kurokawa, Y.

S. Yagi, T. Imai, A. Tate, M. Hikita, S. Tomaru, S. Imamura, T. Tamamura, Y. Kurokawa, and M. Yamamoto, "Mutlilayered waveguide holographic memory card," Postdeadline Oral Papers of the International Symposium on Optical Memory, Kauai Island, Hawaii, July 1999.

Leigh, D.

O. M. Alpert, A. N. Shipway, Y. Takatani, K. Nakao, O. Eytan, D. Leigh, and M. Arise, "Dynamic two-photon recording and readout of over 100 layers of data," presented at the International Symposium on Optical Memory, Singapore, 21-25 October 2007.

Li, J.

Liu, Y.

Y. Liu, K. Kitamura, S. Takekawa, M. Nakamura, Y. Furukawa, and H. Hatano, "Nonvolatile two-color holographic recording in nondoped near-stoichiometric lithium tantalate crystals with continuous-wave lasers," Appl. Phys. Lett. 82, 4218-4220 (2003).
[CrossRef]

Maeda, S.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

Majima, T.

M. Fujitsuka, Y. Oseki, M. Hara, X. Cai, A. Sugimoto, and T. Majima, "First direct observation of the higher triplet excited states of substituted oligothiophenes by two-color two-laser flash photolysis," Chem. PhysChem 5, 1240-1242 (2004).
[CrossRef]

Matsuo, T.

N. Yamamoto, H. Tanigawa, T. Mizokuro, N. Tanigaki, H. Mochizuki, T. Hiraga, and T. Matsuo, "Mapping the distribution of refractive index in photopolymer film with scanning near-field optical microscopy," J. Photopolym. Sci. Technol. 17, 119-122 (2004).
[CrossRef]

Miyamoto, M.

M. Miyamoto, M. Nakano, Y. Kawata, S. Miyata, and M. Nakabayashi, "Twenty layers recording and reading of bit data in a photochromic multilayered media fabricated with laminate process," presented at the Technical Digest of International Symposium on Optical Memory, Waikiki, Hawaii, July 2005.

Miyata, S.

M. Miyamoto, M. Nakano, Y. Kawata, S. Miyata, and M. Nakabayashi, "Twenty layers recording and reading of bit data in a photochromic multilayered media fabricated with laminate process," presented at the Technical Digest of International Symposium on Optical Memory, Waikiki, Hawaii, July 2005.

Mizokuro, T.

N. Yamamoto, H. Tanigawa, T. Mizokuro, N. Tanigaki, H. Mochizuki, T. Hiraga, and T. Matsuo, "Mapping the distribution of refractive index in photopolymer film with scanning near-field optical microscopy," J. Photopolym. Sci. Technol. 17, 119-122 (2004).
[CrossRef]

Mochida, K.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

Mochizuki, H.

N. Yamamoto, H. Tanigawa, T. Mizokuro, N. Tanigaki, H. Mochizuki, T. Hiraga, and T. Matsuo, "Mapping the distribution of refractive index in photopolymer film with scanning near-field optical microscopy," J. Photopolym. Sci. Technol. 17, 119-122 (2004).
[CrossRef]

Mori, Y.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

Nakabayashi, M.

M. Miyamoto, M. Nakano, Y. Kawata, S. Miyata, and M. Nakabayashi, "Twenty layers recording and reading of bit data in a photochromic multilayered media fabricated with laminate process," presented at the Technical Digest of International Symposium on Optical Memory, Waikiki, Hawaii, July 2005.

Nakamura, M.

Y. Liu, K. Kitamura, S. Takekawa, M. Nakamura, Y. Furukawa, and H. Hatano, "Nonvolatile two-color holographic recording in nondoped near-stoichiometric lithium tantalate crystals with continuous-wave lasers," Appl. Phys. Lett. 82, 4218-4220 (2003).
[CrossRef]

Nakano, M.

M. Miyamoto, M. Nakano, Y. Kawata, S. Miyata, and M. Nakabayashi, "Twenty layers recording and reading of bit data in a photochromic multilayered media fabricated with laminate process," presented at the Technical Digest of International Symposium on Optical Memory, Waikiki, Hawaii, July 2005.

Nakao, K.

O. M. Alpert, A. N. Shipway, Y. Takatani, K. Nakao, O. Eytan, D. Leigh, and M. Arise, "Dynamic two-photon recording and readout of over 100 layers of data," presented at the International Symposium on Optical Memory, Singapore, 21-25 October 2007.

Osato, K.

I. Ichimura, K. Saito, T. Yamasaki, and K. Osato, "Proposal for a multilayer read-only-memory optical disk structure," Appl. Opt. 45, 1794-1803 (2006).
[CrossRef] [PubMed]

I. Ichimura, K. Saito, T. Yamasaki, and K. Osato, "Proposal for multi-layer Blu-ray disc structure," presented at the International Symposium on Optical Memory, Jeju, South Korea, October 2004.

Oseki, Y.

M. Fujitsuka, Y. Oseki, M. Hara, X. Cai, A. Sugimoto, and T. Majima, "First direct observation of the higher triplet excited states of substituted oligothiophenes by two-color two-laser flash photolysis," Chem. PhysChem 5, 1240-1242 (2004).
[CrossRef]

Rentzcpis, P.

E. Walker, A. S. Dvornikov, K. Coblentz, S. Esener, and P. Rentzcpis, "253 GB recorded in two-photon 3D disk," presented at Technical Digest of Optical Data Storage, Portland, Oregon, 20-23 May 2007.

Saito, K.

I. Ichimura, K. Saito, T. Yamasaki, and K. Osato, "Proposal for a multilayer read-only-memory optical disk structure," Appl. Opt. 45, 1794-1803 (2006).
[CrossRef] [PubMed]

I. Ichimura, K. Saito, T. Yamasaki, and K. Osato, "Proposal for multi-layer Blu-ray disc structure," presented at the International Symposium on Optical Memory, Jeju, South Korea, October 2004.

Sasaki, Y.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

Schelper, M.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

Shimizu, M.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

Shipway, A. N.

O. M. Alpert, A. N. Shipway, Y. Takatani, K. Nakao, O. Eytan, D. Leigh, and M. Arise, "Dynamic two-photon recording and readout of over 100 layers of data," presented at the International Symposium on Optical Memory, Singapore, 21-25 October 2007.

Sincerbox, G.

Sugimoto, A.

M. Fujitsuka, Y. Oseki, M. Hara, X. Cai, A. Sugimoto, and T. Majima, "First direct observation of the higher triplet excited states of substituted oligothiophenes by two-color two-laser flash photolysis," Chem. PhysChem 5, 1240-1242 (2004).
[CrossRef]

Takatani, Y.

O. M. Alpert, A. N. Shipway, Y. Takatani, K. Nakao, O. Eytan, D. Leigh, and M. Arise, "Dynamic two-photon recording and readout of over 100 layers of data," presented at the International Symposium on Optical Memory, Singapore, 21-25 October 2007.

Takekawa, S.

Y. Liu, K. Kitamura, S. Takekawa, M. Nakamura, Y. Furukawa, and H. Hatano, "Nonvolatile two-color holographic recording in nondoped near-stoichiometric lithium tantalate crystals with continuous-wave lasers," Appl. Phys. Lett. 82, 4218-4220 (2003).
[CrossRef]

Tamamura, T.

S. Yagi, T. Imai, A. Tate, M. Hikita, S. Tomaru, S. Imamura, T. Tamamura, Y. Kurokawa, and M. Yamamoto, "Mutlilayered waveguide holographic memory card," Postdeadline Oral Papers of the International Symposium on Optical Memory, Kauai Island, Hawaii, July 1999.

Tan, X.

Tanigaki, N.

N. Yamamoto, H. Tanigawa, T. Mizokuro, N. Tanigaki, H. Mochizuki, T. Hiraga, and T. Matsuo, "Mapping the distribution of refractive index in photopolymer film with scanning near-field optical microscopy," J. Photopolym. Sci. Technol. 17, 119-122 (2004).
[CrossRef]

Tanigawa, H.

N. Yamamoto, H. Tanigawa, T. Mizokuro, N. Tanigaki, H. Mochizuki, T. Hiraga, and T. Matsuo, "Mapping the distribution of refractive index in photopolymer film with scanning near-field optical microscopy," J. Photopolym. Sci. Technol. 17, 119-122 (2004).
[CrossRef]

Tate, A.

S. Yagi, T. Imai, A. Tate, M. Hikita, S. Tomaru, S. Imamura, T. Tamamura, Y. Kurokawa, and M. Yamamoto, "Mutlilayered waveguide holographic memory card," Postdeadline Oral Papers of the International Symposium on Optical Memory, Kauai Island, Hawaii, July 1999.

Tomaru, S.

S. Yagi, T. Imai, A. Tate, M. Hikita, S. Tomaru, S. Imamura, T. Tamamura, Y. Kurokawa, and M. Yamamoto, "Mutlilayered waveguide holographic memory card," Postdeadline Oral Papers of the International Symposium on Optical Memory, Kauai Island, Hawaii, July 1999.

Walker, E.

E. Walker, A. S. Dvornikov, K. Coblentz, S. Esener, and P. Rentzcpis, "253 GB recorded in two-photon 3D disk," presented at Technical Digest of Optical Data Storage, Portland, Oregon, 20-23 May 2007.

Wild, U. P.

Yagi, S.

S. Yagi, T. Imai, A. Tate, M. Hikita, S. Tomaru, S. Imamura, T. Tamamura, Y. Kurokawa, and M. Yamamoto, "Mutlilayered waveguide holographic memory card," Postdeadline Oral Papers of the International Symposium on Optical Memory, Kauai Island, Hawaii, July 1999.

Yamamoto, M.

S. Yagi, T. Imai, A. Tate, M. Hikita, S. Tomaru, S. Imamura, T. Tamamura, Y. Kurokawa, and M. Yamamoto, "Mutlilayered waveguide holographic memory card," Postdeadline Oral Papers of the International Symposium on Optical Memory, Kauai Island, Hawaii, July 1999.

Yamamoto, N.

N. Yamamoto, H. Tanigawa, T. Mizokuro, N. Tanigaki, H. Mochizuki, T. Hiraga, and T. Matsuo, "Mapping the distribution of refractive index in photopolymer film with scanning near-field optical microscopy," J. Photopolym. Sci. Technol. 17, 119-122 (2004).
[CrossRef]

Yamasaki, T.

I. Ichimura, K. Saito, T. Yamasaki, and K. Osato, "Proposal for a multilayer read-only-memory optical disk structure," Appl. Opt. 45, 1794-1803 (2006).
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Zilker, S. J.

Adv. Mater.

M. Shimizu, M. Schelper, K. Mochida, T. Hiyama, M. Adachi, Y. Sasaki, S. Akiyama, S. Maeda, H. Kanbara, Y. Mori, and T. Kurihara, "Novel strategy for two-photon holographic recording: stepwise two-photon absorption of α-quinquethiophene followed by energy transfer to an aryl azide," Adv. Mater. 19, 1826-1829 (2007).
[CrossRef]

Appl. Opt.

Appl. Phys. Lett.

Y. Liu, K. Kitamura, S. Takekawa, M. Nakamura, Y. Furukawa, and H. Hatano, "Nonvolatile two-color holographic recording in nondoped near-stoichiometric lithium tantalate crystals with continuous-wave lasers," Appl. Phys. Lett. 82, 4218-4220 (2003).
[CrossRef]

Chem. PhysChem

M. Fujitsuka, Y. Oseki, M. Hara, X. Cai, A. Sugimoto, and T. Majima, "First direct observation of the higher triplet excited states of substituted oligothiophenes by two-color two-laser flash photolysis," Chem. PhysChem 5, 1240-1242 (2004).
[CrossRef]

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N. Yamamoto, H. Tanigawa, T. Mizokuro, N. Tanigaki, H. Mochizuki, T. Hiraga, and T. Matsuo, "Mapping the distribution of refractive index in photopolymer film with scanning near-field optical microscopy," J. Photopolym. Sci. Technol. 17, 119-122 (2004).
[CrossRef]

Opt. Lett.

Other

M. Miyamoto, M. Nakano, Y. Kawata, S. Miyata, and M. Nakabayashi, "Twenty layers recording and reading of bit data in a photochromic multilayered media fabricated with laminate process," presented at the Technical Digest of International Symposium on Optical Memory, Waikiki, Hawaii, July 2005.

I. Ichimura, K. Saito, T. Yamasaki, and K. Osato, "Proposal for multi-layer Blu-ray disc structure," presented at the International Symposium on Optical Memory, Jeju, South Korea, October 2004.

O. M. Alpert, A. N. Shipway, Y. Takatani, K. Nakao, O. Eytan, D. Leigh, and M. Arise, "Dynamic two-photon recording and readout of over 100 layers of data," presented at the International Symposium on Optical Memory, Singapore, 21-25 October 2007.

E. Walker, A. S. Dvornikov, K. Coblentz, S. Esener, and P. Rentzcpis, "253 GB recorded in two-photon 3D disk," presented at Technical Digest of Optical Data Storage, Portland, Oregon, 20-23 May 2007.

S. Yagi, T. Imai, A. Tate, M. Hikita, S. Tomaru, S. Imamura, T. Tamamura, Y. Kurokawa, and M. Yamamoto, "Mutlilayered waveguide holographic memory card," Postdeadline Oral Papers of the International Symposium on Optical Memory, Kauai Island, Hawaii, July 1999.

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Figures (11)

Fig. 1
Fig. 1

(a) Conventional holographic recording in multilayer photopolymers and (b) two-color holographic recording in multilayer photopolymers.

Fig. 2
Fig. 2

(a) Mechanism of the refractive index change of the stepwise two-color absorption proposed by Shimizu et al. [14] and (b) mechanism of the two-color-absorption photopolymer developed in the present study.

Fig. 3
Fig. 3

Chemical structures of (a) the two-color-absorption dye bis(silyl)pentathiophene, (b) the photoinitiator DZDS, and (c) the photoinitiator Irgacure 651.

Fig. 4
Fig. 4

(Color online) Experimental setups for (a) measuring the diffraction efficiency of the two-color-absorption photopolymer, (b) recording and reconstructing the Fourier hologram of a resolution-chart test target (USAF test target), and (c) measuring the diffraction efficiency of the two-color-absorption photopolymer having the waveguide structure.

Fig. 5
Fig. 5

Diffraction efficiency of the two-color-absorption photopolymers investigated in the present study. (a) TP-1G containing 0.1 wt. % 5T and 2.0 wt. % DZDS: 410 nm light power density = 0.22 W / cm 2 , 660 nm light power density = 14 W / cm 2 . (b) TP-1G containing 0.3 wt. % 5T and 2.0 wt. % Irgacure 651: 410 nm light power density = 0.38 W / cm 2 , 660 nm light power density = 13 W / cm 2 .

Fig. 6
Fig. 6

Original and reconstructed images of the two-color hologram of a resolution chart obtained using the setup shown in Fig. 1(b).

Fig. 7
Fig. 7

Waveguide structure of (a) one photopolymer layer and (b) three photopolymer layers.

Fig. 8
Fig. 8

Simulated propagation of the gate light when the input light enters (a) only the adhesive layer, (b) both the adhesive layer and the photopolymer layer, and (c) only the photopolymer layer.

Fig. 9
Fig. 9

Calculated effective index and the electric field of the gate light 10 mm from the edge of the recording layer.

Fig. 10
Fig. 10

Diffraction efficiency of the waveguided photopolymer when light is injected in the adhesive layer.

Fig. 11
Fig. 11

(a)–(c) methods of recording the different hologram patterns on different photopolymer layers, and (d) the measured spots of the beams diffracted by the different hologram patterns when the reference beam enters each of the three photopolymer layers.

Equations (1)

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Δ n = λ π T cos θ sin 1 η ,

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